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1,259 tools in all · 211 listed here by name · 1,048 unit conversions in 12 families · 1,218 free with no account · 41 free to try with one
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Business 30
Bank ReconciliationMatch a bank statement against the bank ledger from your books — Tally, Zoho, QuickBooks or a spreadsheet — and get the unmatched entries on each side, the matched pairs, and the closing balances explained. Runs in your browser; nothing is uploaded.FreeBookkeeping: Trial Balance, P&L and Balance SheetBring a bank statement, a sales day book or a set of journals into a real double-entry ledger and get the trial balance, profit and loss, balance sheet, VAT or GST figures and every account’s ledger back. Charts of accounts for the UK and India. Runs in your browser — a client’s books are never uploaded.FreeBreak-Even Analysis CalculatorFind the sales volume and revenue where a product or business stops losing money.FreeCAGR Calculator (Compound Annual Growth Rate)Calculate the smoothed annual growth rate between two values, and project it forward.FreeCTC to Take-Home Salary Calculator (India)Turn an annual CTC into the full salary structure and the monthly in-hand: Basic, HRA, allowances, employer PF, gratuity, ESI, professional tax by state, and income tax under both the new and the old regime side by side — with a reverse mode that finds the CTC for the take-home you want. Runs in your browser; nothing is uploaded.FreeCurrency ConverterConvert between 160+ world currencies using daily reference rates. Rates are cached so it keeps working offline.FreeDepreciation Calculator with ScheduleStraight-line, reducing balance, sum-of-years and units of production, with a full year-by-year schedule.FreeDiscount & Sale Price CalculatorApply single or stacked discounts, work backwards from a sale price, and see the margin impact.FreeE-Invoice JSON Generator (IRP schema)Turn a spreadsheet of invoices into the JSON the GST e-invoice portal accepts — schema 1.1, one file for bulk upload — with GSTINs, PINs, HSN codes and the CGST/SGST or IGST split checked before you upload. Runs in your browser; nothing is uploaded here.FreeExcel / CSV to Tally ConverterTurn a spreadsheet of sales, purchases, receipts and payments into Tally import XML — vouchers, party ledgers and stock items — and bring Tally’s exported XML back into Excel. Runs in your browser; nothing is uploaded.FreeFinancial Ratio CalculatorLiquidity, profitability, efficiency and leverage ratios from balance sheet and P&L figures.FreeFull & Final Settlement CalculatorWork out exactly what a leaving employee is owed: pro-rated salary for the final month, leave encashment, gratuity under the 15/26 formula with the rounding rule and the Rs 20 lakh cap, notice pay recovered or paid in lieu, reimbursements, advances, loans and asset recovery — then download a signable settlement statement as PDF and the working as a spreadsheet. Runs in your browser; nothing is uploaded.FreeGSTIN, PAN, IFSC & ID Validator (Bulk)Check a whole column of GSTINs, PANs, Aadhaar numbers, IFSC codes, TANs, CINs, UPI IDs, IBANs, PIN codes, emails and phone numbers at once — format and checksum — with the reason for every failure. Runs in your browser; nothing is looked up or uploaded.FreeGSTR-2B ReconciliationMatch your purchase register against GSTR-2B — the portal’s JSON or Excel — and see which input tax credit is safe to claim, which suppliers have not filed, what is in 2B but not in your books, and where the tax amounts differ. Runs in your browser; nothing is uploaded.FreeInvoice Due Date & Settlement Discount CalculatorWork out payment due dates, late payment interest, and whether an early settlement discount is worth taking.FreeLetter Mail Merge to PDFWrite one letter with {{Name}}-style placeholders, drop a spreadsheet of recipients, and download a PDF for each row — zipped, and as one combined file for printing. Runs in your browser; nothing is uploaded.FreeLoan Amortisation ScheduleFull payment-by-payment breakdown of principal, interest and remaining balance, with optional overpayments.FreeMaking Tax Digital: Does It Apply to Me?Work out whether Making Tax Digital for Income Tax catches you, and from which April. It adds up your qualifying income the way HMRC defines it - gross income before expenses, across every trade and every property business - shows the sum, names the threshold that catches you, counts your quarterly updates, and gives you the first period and its deadline. Guidance as at 2026-09-20; gov.uk is the authority. Runs in your browser.FreeMerge & Dedupe SpreadsheetsCombine up to ten Excel or CSV files into one sheet — columns matched by heading, rows stacked — then remove duplicates on the columns you choose, with every removed row listed by source file and row. Runs in your browser; nothing is uploaded.FreeMonthly Payroll Run: Payslips, Bank File & Statutory SummaryDrop in a salary sheet and get the whole month's payroll: a payslip PDF for every employee in a zip, a combined PDF, the bank bulk-transfer CSV, and a register workbook with PF, ESI, professional tax and TDS summaries. Pro-rates by paid days, computes the statutory deductions or takes them from your sheet, and refuses to run if anyone's net pay is negative. Runs in your browser; nothing is uploaded.FreeMTD Quarterly Update BuilderTurn the income and expense spreadsheet you already keep into the figures a Making Tax Digital quarterly update asks for. It maps your own category names onto the standard self-employment or property headings, cuts the tax year into its four quarterly periods - standard or calendar - and gives the cumulative year-to-date total alongside the standalone quarter, with every unmatched row listed by name. It produces the figures; filing them needs software HMRC has recognised. Runs in your browser.FreeNPV & IRR Calculator (Discounted Cash Flow)Value a project with net present value, internal rate of return and discounted payback.FreeProfit Margin & Markup CalculatorWork out margin, markup, cost or selling price from any two of them. Margin and markup are not the same thing.FreeQuickBooks / Zoho Books / Tally ConverterMove journals and invoices between QuickBooks, Zoho Books and Tally: a QuickBooks or Zoho journal CSV becomes Tally vouchers, a Zoho invoice export becomes Tally sales vouchers, and a Tally day-book export becomes the journal CSV QuickBooks or Zoho imports. Every voucher is checked to balance. Runs in your browser.FreeReceivables Ageing & Payment RemindersTurn a list of unpaid invoices into a proper ageing report — 0–30, 31–60, 61–90, over 90 days, by customer — and get a reminder letter for each debtor that names their invoices and their total, with the tone stepping up the longer it has been. Runs in your browser; your debtors list is not uploaded.FreeROI & Payback Period CalculatorCalculate return on investment, annualised return and how long an investment takes to pay for itself.FreeSales Commission CalculatorFlat, tiered and threshold-based commission, with on-target earnings and effective rate.FreeTrue Cost of an Employee CalculatorWork out what an employee really costs after employer NI, pension, holiday and overheads.FreeUK Take-Home Pay CalculatorEstimate income tax, National Insurance and net pay from a gross salary. England, Wales and Northern Ireland.FreeVAT Return from a Spreadsheet (the nine boxes)Turn a spreadsheet of sales and purchases into the nine boxes of a UK VAT return — standard accrual, cash accounting or the flat rate scheme — with every box opened up to show the rows behind it, and the sheet checked for net-plus-VAT that does not equal gross, duplicate invoice numbers and rows outside the period. It computes the figures; it does not file them. Runs entirely in your browser.Free
AI for Business 41
Bank Statement CategoriserPaste or upload a bank statement and get every transaction categorised to a ledger head — rent, salaries, GST paid, a named customer — as a spreadsheet, or as Tally receipt and payment vouchers ready to import.Free to tryBlog Post WriterA brief in, a finished post out: headings, an introduction that says what the point is, and a summary at the end. British spelling and no invented numbers — anything it cannot support is marked [source needed] for you to fill in or cut.Free to tryBrand Voice Guide BuilderPaste two or three pieces of copy you already like and say what the brand is; get back a voice guide — the personality in three words, a tone do/don’t table, words to use and words to avoid, your samples rewritten to show the rules, and how the voice changes for social, support and sales.Free to tryBusiness Document TranslatorA letter, a notice, a price list, a policy — translated into Hindi, Marathi, Gujarati, Tamil, Telugu, Kannada, Bengali, Punjabi, Malayalam, Arabic, French, Spanish or German at the formality you choose, with the names, codes and terms that should stay in English kept, and listed in a glossary.Free to tryBusiness Email & Letter WriterThe emails and letters a business sends every week — payment reminders, quotation follow-ups, complaint replies, offer letters — written properly from a few facts, in the tone you choose.Free to tryContent Repurposer — One Piece, Six FormatsOne thing you already made goes in; the other formats come out — a blog outline, a thread, three short-form scripts cut from the strongest moments, a newsletter blurb and five captions. Nothing new is invented: repurposing is re-cutting, not re-researching.Free to tryContract & Document SummariserA contract, a tender, a policy, a long email thread — PDF or text — summarised into what it says, who owes what to whom, the dates that matter, the money, and the questions you should ask before signing.Free to tryContract, NDA & Offer Letter GeneratorName the parties and the terms and get a full first draft — a mutual or one-way NDA, a service or consultancy agreement, an offer letter, a leave-and-licence summary — with numbered clauses, defined terms and [brackets] where you still have to decide. A draft for your lawyer, not a substitute for one.Free to tryCustomer & Product Data CleanerUpload a messy customer, supplier or product list and get it back normalised — consistent names, valid phones and emails, GSTINs checked, addresses tidied — with duplicates flagged and the reason given.Free to tryCustomer Review ResponderPaste the reviews — one per line, or a CSV export — and get, for each one, the sentiment, the issue in a few words, a reply in your voice ready to post, and what to fix inside the business, as a table you can download.Free to tryCV Screener against a Job DescriptionPaste the job description and up to five CVs and get, for each candidate, a fit score with the reasoning, the requirements they meet, the gaps, and the questions to ask at interview. Decision support for a hiring manager: it must not be the only reason a candidate is rejected.Free to tryEmail Campaign WriterA launch, an offer, a win-back, a newsletter or an onboarding series, written from your facts: five subject lines with preview text, the email itself, a plain-text version, the call to action — and a three-email sequence when you ask for one.Free to tryExcel & Google Sheets Formula HelperSay what you want a cell to do — in words, with your column headers — and get the formula for Excel and for Google Sheets, an explanation of each part, the ways it can go wrong, and an alternative.Free to tryExpense Receipts to SpreadsheetPhotograph up to four expense receipts at a time and get one row per receipt — date, merchant, category, amount, tax, currency and how it was paid — as a CSV or Excel file for the expense claim or the books.Free to tryForm 16 Reader (Salary, Deductions & TDS)Drop a Form 16 — the PDF your employer or TRACES gives — and get the salary, exempt allowances, Chapter VI-A deductions, quarterly TDS and the tax computed back as fields you can check against your return, with a list of what to verify before you file.Free to tryGoogle & Meta Ad Copy WriterOne offer in; a full set of ad copy out — 15 Google responsive search ad headlines and 4 descriptions, 3 Meta primary texts and 5 headlines — each written short of its character limit, counted here in your browser, and flagged if one slips over, as a table you can paste straight into the ad platform.Free to tryHSN / SAC Code & GST Rate FinderDescribe a product or service in plain words and get the likely HSN or SAC codes with the GST rate for each, the reasoning, and the things that could move it to a different code.Free to tryID & KYC Document ReaderPhotograph a PAN card, Aadhaar (front), passport, driving licence, GST certificate or cheque and get the typed fields back — document type, name, number, dates, address — with a checklist of what to verify before you accept it.Free to tryInvoice & Receipt Data ExtractorDrop an invoice or receipt — PDF or pasted text — and get the vendor, numbers, dates, taxes and every line item back as a table you can download for your accounts.Free to tryJob Description WriterThe facts of a role — title, what they will do, what they must have, pay, where and when — written into a job description with responsibilities, requirements, nice-to-haves and a salary line, then checked for wording that puts good candidates off.Free to tryLanding Page Copy WriterProduct, audience, offer and proof in; a landing page out — hero headline and subhead, three benefit blocks, how it works, the objections answered, testimonial slots marked [quote needed], an FAQ and five calls to action — written from your facts and nothing else.Free to tryLesson Plan & Worksheet WriterA lesson plan you could hand to a cover teacher — objectives in observable verbs, a timed sequence, the misconceptions to expect and what to say to each — with a printable worksheet and its answer key.Free to tryLong-Form Article WriterA brief in, a full article out — a standfirst, sections that go somewhere, and an ending that lands. Every claim it cannot support is marked [source needed] and no statistic is ever invented, because a wrong number in a published piece costs more than a gap does.Free to tryMarking Rubric & Assessment Criteria BuilderA marking rubric for a task you set — criteria against bands, with descriptors that actually tell a 7 from a 5, the marks allotted to each criterion, and a note on what a top answer does.Free to tryMeeting Notes to Minutes & ActionsRough notes or a transcript in; proper minutes out — decisions, action items with owners and dates, open questions — ready to send while everyone still remembers the meeting.Free to tryNewsletter Issue WriterYour notes for this week in; a finished issue out — five subject lines with preview text and their lengths counted here, an opening that is not "hope you’re well", the body in sections, one thing to click, and a sign-off that sounds like a person.Free to tryParent Communication WriterThe message home, written properly — absence, progress, behaviour, fees, trips, exams, closures — in the shape of the channel you are sending it on, and in a second language if the family reads one more easily.Free to tryPodcast Show Notes from a TranscriptPaste or upload a transcript and get the show notes: a summary, chapter timestamps taken from the transcript’s own timings, quotable lines with the time they were said, the links mentioned, the topics, and a short blurb to post. No time is ever estimated and no quotation is ever tidied.Free to tryProduct Listing WriterTurn a bare product list into store-ready listings — title, description, bullet points, SEO title and meta, search tags — for one product or a whole spreadsheet of them.Free to tryQuestion Paper GeneratorA full question paper from your blueprint — sections, general instructions, marks against every question — with a separate marking scheme that gives the model answer and where each mark is earned.Free to tryQuotation & Proposal WriterThe facts of a deal — who it is for, what you will supply, the prices, the terms — written up as a quotation or a short proposal: a numbered line-item table, totals with tax, validity and the terms spelt out, ready to paste onto your letterhead.Free to tryReport Card Comment WriterPaste the class list with marks, attendance and a few words about each pupil, and get a report card comment for every one of them — in their own name, about their own term, with the next step spelt out.Free to tryScanned Invoice & Receipt ReaderPhotograph or scan an invoice or receipt and get the vendor, numbers, dates, taxes and every line item back as a table you can download — the picture is read directly, so a scan with no text layer works.Free to trySEO Title, Meta & Outline WriterGive it a page topic, who it is for and the keyword you want to rank for; get back a title that fits in the search result, a meta description that fits under it, an H1, an H2 outline, the questions people ask, where to link from — and a note on what the searcher actually wants.Free to trySocial Media Post WriterOne offer, announcement or tip — written as ready-to-post copy for LinkedIn, Instagram, Facebook, X and WhatsApp, each in that platform’s length and manner, with hashtags that fit.Free to tryStory & Draft Editor (an edit, not a rewrite)Paste your own draft and get an editor’s read: what is working and where, what is not, line-level suggestions as your line and a proposed change side by side, pacing notes, and the three things to fix first. It does not rewrite you, and it will not hand back a smoothed-out version of your voice.Free to tryTextbook Question ExplainerPaste the question you are stuck on — one, or a whole exercise — and get the method worked through step by step, the idea it rests on, the mistake most people make, and a similar question to try with its answer.Free to tryVideo Hook Writer — Ten OpeningsOne video idea in; ten opening lines out, each built on a different angle — a question, a claim, a story, a contradiction, a demonstration, a stake and four more — with the shot it opens on, the viewer it suits, its spoken length counted here, and the honest reason it might not work.Free to tryWhatsApp Business Template WriterSay what the message is for and what changes per customer, and get three to five WhatsApp Business message templates in Meta’s format — {{1}} placeholders, a category, sample values, buttons — with a note on what gets each one rejected at review.Free to tryYouTube & Vlog Script WriterA topic in; a script you can read to camera out — a hook worth the first fifteen seconds, a beat-by-beat outline whose timings add up to the length you asked for, the spoken words in full, one call to action, and a B-roll list for the edit.Free to tryYouTube Title, Description & Tags WriterFive titles, each counted here in your browser and flagged if it runs past the 60 characters YouTube shows; a description whose first two lines do the work before the fold; chapter timestamps from your own outline; 15 to 20 tags; three hashtags; and a pinned comment.Free to try
PDF Tools 22
Add a Signature to a PDFDraw or type a signature onto a PDF and place it where you want. A visible signature, not a cryptographic one — the difference is explained below.FreeAdd Page Numbers to PDFStamp page numbers, headers or footers onto an existing PDF.FreeAdd Text to a PDFPut text anywhere on a PDF — as many pieces as you like, on any pages, wrapped to a width. Click the page to place each one and see it land before you commit.FreeAdd Watermark to PDFStamp text across every page — DRAFT, CONFIDENTIAL, a name or a date — at any angle and opacity.FreeCertificate GeneratorCreate certificates of completion, achievement or attendance — one, or a batch from a name list.FreeDelete PDF PagesRemove unwanted pages from a PDF — blank scans, cover sheets, or anything else.FreeDelivery Challan & Packing List Generator (PDF)Create the document that travels with the goods: consignor and consignee, purpose of movement, vehicle and transporter details, items with weights and package counts, and an acknowledgement for the receiver to sign — printed as Original, Duplicate and Triplicate copies.FreeExtract PDF PagesPull specific pages out of a PDF into a new document, keeping the order you specify.FreeInvoice Generator (PDF)Create a clean, professional invoice PDF with line items, tax and totals calculated for you.FreeLabel Sheet GeneratorPrint address or product labels on standard sheet layouts, with data from a list.FreeMerge PDF FilesCombine several PDFs into one, in any order, without uploading anything.FreeOrganise PDF PagesSee page thumbnails and reorder, rotate or delete pages visually before saving.FreePayslip Generator (PDF)Create a clean, print-ready payslip PDF: company and employee details, attendance, earnings and deductions, and the net pay in figures and words.FreePDF InspectorExamine a PDF: page count, sizes, rotation, fonts, images, metadata and structure.FreePDF Metadata Editor & RemoverView, change or completely strip the hidden metadata in a PDF — author, title, software.FreePDF to ImagesConvert PDF pages to PNG or JPEG images at any resolution, entirely in your browser.FreePrintable Paper GeneratorGenerate graph, lined, dotted, isometric or music paper as a print-ready PDF.FreePurchase Order Generator (PDF)Create a purchase order PDF from the buyer’s side: supplier and delivery details, line items with HSN/SAC, freight and packing charges, GST or VAT, Incoterms, an inspection clause and an authorised signatory block.FreeQuotation & Proforma Invoice Generator (PDF)Create a quotation, proforma invoice or estimate as a clean PDF: line items with HSN/SAC and discounts, GST or VAT worked out for you, terms, bank details and an acceptance block for the client to sign and return.FreeRotate PDF PagesRotate every page or selected pages by 90, 180 or 270 degrees, permanently.FreeSplit PDFSplit one PDF into several files — by page count, by ranges, or one file per page.FreeText to PDF ConverterTurn plain text into a properly paginated PDF with margins, wrapping and page numbers.Free
Education & Exams 9
Attendance CalculatorWork out your attendance percentage, how many classes you can still miss, and how many you must attend in a row to get back to the required minimum.FreeCGPA to Percentage ConverterConvert CGPA to percentage and back, using your university's own formula — CBSE, VTU, GTU, a plain ten-point scale, or one you enter yourself.FreeExam Countdown & Study PlannerDays left until your exam, how many of them are study days, and the hours a day your syllabus actually needs to fit in them.FreeExam Seating Plan GeneratorSeat a whole exam from a student list and a set of rooms: no two of the same class side by side, classes alternating down a column or across a row, every n-th seat left empty. Download the plan as a workbook, a chart for every room door and an attendance sheet per room. Runs in your browser.FreeMarks Percentage CalculatorAdd up marks across subjects and get the total, the percentage and the grade, with per-subject maximums where they differ.FreePercentile and Rank CalculatorConvert between rank and percentile for any competitive exam, both directions, using either the standard formula or the NTA one.FreeReport Card & Marksheet Generator (PDF)Turn a class marks spreadsheet into a printed report card for every student — subject grades, total, percentage, rank and the class average — as one PDF each in a ZIP, one combined PDF for printing, and a results workbook. Runs in your browser; no marks are uploaded.FreeSchool Timetable GeneratorGive it the subject allocation — class, subject, teacher, periods a week — and get a clash-free timetable: a grid for every class, a grid for every teacher, double periods kept together, teacher free days honoured, and a plain list of anything that would not fit. Runs in your browser; no staff names are uploaded.FreeSGPA to CGPA CalculatorTurn semester grade points into a cumulative CGPA, weighted by semester credits where you have them, with the equivalent percentage.Free
India 15
Advance Tax CalculatorQuarterly advance tax instalments and the interest payable under Sections 234B and 234C if you underpay.FreeCapital Gains Tax Calculator (India)Short and long-term capital gains on equity, mutual funds, property and other assets under current rules.FreeCTC to In-Hand Salary CalculatorBreak a cost-to-company figure into gross, deductions and monthly in-hand pay.FreeEMI Calculator with AmortisationEquated monthly instalment for home, car or personal loans, with the full repayment schedule.FreeEPF CalculatorEmployees’ Provident Fund corpus at retirement, including the employer’s split into EPF and EPS.FreeFD & RD CalculatorFixed and recurring deposit maturity with quarterly compounding, plus the effect of TDS.FreeGratuity CalculatorGratuity payable under the Payment of Gratuity Act, with the tax-exempt portion.FreeGST Calculator (India)Add or remove GST at current 2026 slabs, with the CGST, SGST and IGST split for your invoice.FreeHRA Exemption CalculatorWork out the house rent allowance exemption under Section 10(13A) — the lowest of three tests.FreeIncome Tax Calculator (New vs Old Regime)Compare tax under both regimes for FY 2026-27, including rebate, surcharge, cess and marginal relief.FreeLumpsum Investment CalculatorFuture value and annualised return on a one-time investment, with inflation-adjusted worth.FreeNPS CalculatorNational Pension System corpus at 60, with the mandatory annuity split and estimated pension.FreePPF CalculatorPublic Provident Fund maturity value over 15 years, with the year-by-year balance.FreeSIP CalculatorProject the future value of a systematic investment plan, with optional annual step-up.FreeTDS CalculatorTax deducted at source across common sections, with the higher rate where PAN is not furnished.Free
Developer & Web Tools 21
.htaccess Snippet GeneratorGenerate Apache rules for HTTPS redirects, www handling, caching, compression and security headers.FreeBase64 Encoder & DecoderEncode text to Base64 or decode it back. Full Unicode support, plus URL-safe output.FreeColour Converter & Contrast CheckerConvert between HEX, RGB, HSL and HSB, and check WCAG contrast against a background.FreeCron Expression ParserTranslate a cron expression into plain English and see exactly when it will next run.FreeCSS Gradient GeneratorBuild linear and radial CSS gradients with a live preview and copy-ready code.FreeCSV to JSON ConverterConvert CSV or TSV into JSON, and back again. Handles quoted fields and embedded commas.FreeFavicon GeneratorGenerate every favicon and app icon size from one image, with the HTML to install them.FreeHash Generator (SHA-256, SHA-1, MD5, CRC32)Generate cryptographic and checksum hashes from text, entirely in your browser.FreeHTML Entity Encoder & DecoderEscape text for safe display in HTML, or convert entities back to characters.FreeJSON Formatter & ValidatorFormat, validate and minify JSON. Pinpoints the exact line and column of any syntax error.FreeJWT DecoderDecode a JSON Web Token to inspect its header, payload and expiry. Runs entirely in your browser.FreeLorem Ipsum GeneratorGenerate placeholder text by paragraphs, sentences or words — classical Latin or plain English.FreeMarkdown to HTML ConverterConvert Markdown to clean HTML, with support for headings, lists, code blocks, links and tables.FreeMeta Tag & Open Graph GeneratorGenerate SEO meta tags, Open Graph and Twitter Card markup, with live length warnings.FreeRegex TesterTest regular expressions against sample text with live match highlighting and capture groups.Freerobots.txt GeneratorBuild a valid robots.txt with crawl rules, sitemap references and common bot presets.FreeText Case ConverterConvert between camelCase, snake_case, kebab-case, PascalCase, CONSTANT_CASE, Title Case and more.FreeURL Encoder & DecoderPercent-encode text for URLs and query strings, or decode it back to readable form.FreeURL Slug GeneratorTurn titles into clean, SEO-friendly URL slugs. Handles accents and multiple lines at once.FreeUUID GeneratorGenerate cryptographically random version 4 UUIDs, singly or in bulk.FreeXML Formatter & ValidatorIndent, tidy and check XML. Also minifies for production and reports tag structure.Free
Image & Photo Tools 20
Add Border & Frame to ImageAdd a solid border, padding or polaroid-style frame around a photo.FreeBackground RemoverRemove a plain background from product photos and logos instantly, with an optional AI mode for complex subjects.FreeBlur & Redact ImageBlur, pixelate or black out part of an image to hide faces, addresses or account details before sharing.FreeBulk Image ResizerResize dozens of images at once to a fixed width, height or percentage, and download them as a ZIP.FreeCircle Crop / Avatar MakerCrop an image into a circle or rounded square with a transparent background — ready for profile pictures.FreeColour Palette ExtractorPull the dominant colours out of any image as HEX, RGB and HSL, with contrast checks.FreeEXIF Metadata ViewerSee the hidden metadata in a photo — camera, timestamp, settings and GPS location.FreeImage CompressorShrink JPEG, PNG and WebP files with a live quality preview and a before/after size comparison.FreeImage CropperCrop an image by dragging a selection, with optional locked aspect ratios.FreeImage Format ConverterConvert between PNG, JPEG and WebP in your browser. No upload, no queue, no watermark.FreeImage Splitter (Grid & Carousel)Cut an image into a grid of tiles — for Instagram carousels, photo mosaics or sprite sheets.FreeImage to Base64 / Data URIConvert an image to a Base64 data URI for inlining in CSS, HTML or JSON.FreeImage to PDF ConverterCombine JPEG and PNG images into a single PDF, one image per page, with page size and margin control.FreeMeme GeneratorAdd classic top and bottom caption text to an image, with the traditional outlined Impact styling.FreePassport & ID Photo MakerCreate correctly sized passport and visa photos, laid out on a printable 4×6 sheet.FreePhoto Filters & AdjustmentsAdjust brightness, contrast, saturation and blur, or apply grayscale, sepia and invert.FreeRemove Image MetadataStrip EXIF, GPS location and all other metadata from photos before you share them.FreeRotate & Flip ImageRotate by any angle and mirror horizontally or vertically, with the canvas resized to fit.FreeSocial Media Image ResizerProduce correctly sized images for Instagram, Facebook, X, LinkedIn, YouTube and more in one pass.FreeSVG OptimiserStrip editor metadata and shrink SVG files without touching the artwork.Free
Text & Writing Tools 9
Caesar Cipher & ROT13 ToolEncode and decode Caesar shift ciphers, including ROT13, with automatic cracking.FreeMorse Code TranslatorTranslate text to Morse code and back, with the full reference alphabet.FreeNumber to Words ConverterWrite numbers out in words, including currency form for cheques and contracts.FreePalindrome & Anagram CheckerCheck whether text reads the same backwards, and test whether two phrases are anagrams.FreePassword GeneratorGenerate strong random passwords or passphrases using a cryptographic random source.FreeReadability Score CheckerFlesch Reading Ease, Flesch-Kincaid grade, Gunning Fog and SMOG scores for any text.FreeText Cleanup ToolkitRemove duplicate lines, sort, trim whitespace, strip HTML tags and reverse text.FreeText Compare & Diff ToolCompare two texts line by line and see exactly what was added, removed or changed.FreeWord & Character CounterCount words, characters, sentences and paragraphs, with reading time and keyword density.Free
Mathematics 12
Area & Volume CalculatorArea, perimeter, surface area and volume for common 2D and 3D shapes.FreeAverage Calculator (Mean, Median, Mode)Calculate mean, median, mode, range and weighted average from a list of numbers.FreeFraction CalculatorAdd, subtract, multiply and divide fractions, simplify them, and convert to and from decimals.FreeLCM & GCD CalculatorFind the least common multiple and greatest common divisor of any list of numbers.FreeNumber Base ConverterConvert between binary, octal, decimal, hexadecimal and any base from 2 to 36.FreePercentage CalculatorCalculate percentages, percentage change, and reverse percentages in both directions.FreePrime Factorisation CalculatorBreak a number into prime factors, list all divisors, and test whether it is prime.FreeQuadratic Equation SolverSolve ax² + bx + c = 0, including complex roots, vertex, and discriminant.FreeRatio CalculatorSimplify ratios, solve for a missing term, and scale a ratio to a total.FreeRoman Numeral ConverterConvert numbers to Roman numerals and back, with the rules explained.FreeScientific CalculatorA full scientific calculator with trigonometry, logarithms, powers, roots and constants.FreeStatistics Calculator (Mean, Median, Mode, SD)Compute mean, median, mode, standard deviation, variance, and quartiles from a dataset.Free
Finance & Accounting 3
Compound Interest CalculatorCalculate how an investment grows with compound interest, including regular contributions.FreeLoan Payment CalculatorCalculate monthly loan payments, total interest paid, and the full cost of borrowing.FreeVAT & Sales Tax CalculatorAdd tax to a net price or extract tax from a gross price — works in both directions.Free
Time & Dates 8
Age CalculatorWork out an exact age in years, months and days, plus total days lived and time to the next birthday.FreeBusiness Days CalculatorCount working days between two dates, or add working days to a date, excluding weekends and holidays.FreeCountdown TimerCount down to any date and time, with a live display of days, hours, minutes and seconds.FreeDate Add & Subtract CalculatorAdd or subtract years, months, weeks and days from any date, with correct end-of-month handling.FreeDate Difference CalculatorCalculate the exact time between two dates in years, months, days, and total units.FreeStopwatch, Timer & PomodoroA stopwatch with lap times, a countdown timer, and a Pomodoro cycle with work and break intervals.FreeTime Zone ConverterConvert a time between world time zones, with daylight saving handled automatically.FreeWeek Number CalculatorFind the ISO-8601 week number for any date, and the dates covered by any week number.Free
Health 8
BMI CalculatorCalculate Body Mass Index from height and weight, in metric or imperial units.FreeBMR & Daily Energy CalculatorEstimate resting metabolic rate and total daily energy expenditure using the Mifflin-St Jeor equation.FreeBody Fat Percentage EstimatorEstimate body fat percentage from tape measurements using the US Navy circumference method.FreeDaily Water Intake EstimatorA rough guide to daily fluid needs based on body weight, activity and climate.FreeHeart Rate Zone CalculatorTraining heart rate zones from maximum or reserve heart rate, with what each zone is for.FreeOvulation & Fertile Window CalculatorEstimate ovulation and the fertile window from cycle length and last period date.FreePregnancy Due Date CalculatorEstimate a due date from the last menstrual period or conception date, with current gestational age.FreeReference Weight Range CalculatorWeight ranges from the standard clinical formulas, with a clear account of what they can and cannot tell you.Free
QR Tools 3
Bulk QR Code GeneratorTurn a list or a CSV into hundreds of QR codes at once, all sharing one look: shapes, colours, gradient, logo and error correction. Every code is scanned back before you download the batch as PNG or SVG.FreeQR Code GeneratorCreate QR codes for URLs, WiFi, contact cards, UPI and more. Custom shapes, colours and a logo, with a built-in scan check. Download as SVG or PNG.FreeQR Code ScannerScan a QR code with your camera or from a picture. Reads WiFi, contact cards, payments and links, and shows where a link really goes before you open it.Free
Utilities 8
Cooking Measurement ConverterConvert between cups, tablespoons, millilitres, grams and ounces for common ingredients.FreeDice RollerRoll any number of dice with any number of sides, with modifiers and standard RPG notation.FreeFuel Efficiency & Trip Cost CalculatorConvert between MPG and L/100km, and calculate the fuel cost of a journey.FreeGPA CalculatorCalculate weighted and unweighted grade point average from course grades and credits.FreeRandom Number GeneratorGenerate random numbers in any range, with or without duplicates, using a cryptographic source.FreeShoe Size ConverterConvert shoe sizes between UK, US, EU, Japan and foot length in centimetres.FreeSquare Footage CalculatorCalculate floor area for rooms, including L-shaped spaces, plus material quantities and cost.FreeTip Calculator & Bill SplitterWork out a tip and split a bill between any number of people, with optional rounding.Free
Engineering & Electronics 1
Design & Media 1
Unit conversions 1,048
Listed as families rather than one by one — there are 1,048 of them and each family hub lists its own.
What the prices mean
- Free, no account. Runs in your browser. No account, no upload, no limit. The work happens in your browser, so it costs us nothing to run and there is nothing to sign up to.
- Free to try. Needs an account. Ten AI calls a month free, more on a paid plan. These call a model on a server, which costs money every time.
- Nothing is hidden behind a plan. Paying raises the monthly allowance on the AI tools. It does not unlock a tool you could not otherwise reach.
Another way in
If you would rather not read a list, the collections gather these by trade — accountants, small businesses, schools, HR, freelancers, developers — and by the job in front of you.