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Creators and influencers

Captions, thumbnails, cut-outs, hooks and the brand-deal paperwork, for Instagram, YouTube, TikTok and podcasts. No watermark, no app, no upload.

32 tools · 25 free with no account · 7 free to try with one

Most of the work behind a post is not the idea. It is the captions that take an hour by hand, the thumbnail that needs the face cut out and the background punched up, the same photo at four sizes for four apps, and the invoice for the brand that finally paid. The apps that do it want a subscription, put a watermark on the free version, or want your video on their server first.

These run in your browser. The AI models for captions, cut-outs, upscaling and the rest are downloaded once and run on your own device, so an unreleased video or a client’s product shot never leaves it, and nothing you export carries a watermark. The writing tools for hooks, scripts and titles are the exception: they send what you type to a language model, say so on the page, and give you ten free a month.

Video

Reels from a script, captions burned in word by word, and clips made out of stills.

Reel MakerTurn a script into a 9:16 Reel in your browser: animated text scenes, screenshots or screen recording, your voice, music and auto-captions. MP4 with sound, no upload, no watermark, no account.FreeAuto Captions (offline)Add word-by-word animated captions to a video, free and offline. Whisper runs in your browser — nothing is uploaded. Edit the words, pick a style, export MP4 with sound, plus SRT and VTT.Free3D Photo Parallax VideoTurn one still photo into a looping 3D parallax clip. AI depth runs in your browser — nothing is uploaded. Export a 6-second MP4 or GIF in 9:16, 1:1 or 16:9.FreeText Behind ImagePut text behind a person, car, building or sky in any photo. AI finds the layers in your browser — nothing is uploaded. Animate the text and export PNG, JPEG, GIF or MP4.FreeFace Blur (everyone but me)Blur or pixelate every face in a photo or short video and tap the ones to keep. The face detector runs in your browser — nothing is uploaded. PNG or MP4 out.Free

Thumbnails and covers

The frame people decide on in half a second.

YouTube Thumbnail MakerFace cut out with a glow, background punched up, a bold title on top; export 1280×720 PNG or JPEG under 2 MB, three variants in one click. Nothing is uploaded.FreeAI Background RemoverRemove the background from any photo, or keep only the people, cars or sky. AI in your browser — nothing is uploaded. Transparent PNG or WebP, 20 at a time.FreeBlur Background (Portrait Mode)Blur the background of a photo and keep the subject sharp: bokeh, motion streaks or zoom blur that grows with distance, like portrait mode. Nothing is uploaded.FreeColour Pop & DuotoneKeep one layer or one colour and turn the rest black and white, sepia or duotone. AI finds the layers in your browser; nothing is uploaded. PNG, MP4 or GIF.FreeAI Image UpscalerUpscale a photo 2× or 4×, or unblur it at its own size, with Real-ESRGAN running in your browser. Nothing is uploaded. Before/after slider; PNG, JPEG or WebP.FreeFilm Grain & VHS EffectGive a photo film grain, light leaks, VHS tracking, a date stamp and faded colour. Seven presets, a random roll; PNG still or a looping GIF and MP4. No upload.Free

Every size every app wants

One picture in; a carousel, a story, a square and an avatar out.

Social Media Image ResizerProduce correctly sized images for Instagram, Facebook, X, LinkedIn, YouTube and more in one pass.FreeImage Splitter (Grid & Carousel)Cut an image into a grid of tiles — for Instagram carousels, photo mosaics or sprite sheets.FreeCircle Crop / Avatar MakerCrop an image into a circle or rounded square with a transparent background — ready for profile pictures.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.FreeSticker MakerCut a sticker from any photo, white outline and all: a WhatsApp or Telegram pack, a story or a transparent PNG. AI in your browser — nothing is uploaded.FreeMeme GeneratorAdd classic top and bottom caption text to an image, with the traditional outlined Impact styling.Free

Words that get the click

Drafts to edit: the first three seconds, the script, the title and the tags.

Video 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 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 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 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 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 tryWord & Character CounterCount words, characters, sentences and paragraphs, with reading time and keyword density.Free

The business of it

Brand deals, invoices in another currency, and the tax on what came in.

Invoice Generator (PDF)Create a clean, professional invoice PDF with line items, tax and totals calculated for you.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.FreeContract, 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 tryCurrency ConverterConvert between 160+ world currencies using daily reference rates. Rates are cached so it keeps working offline.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.FreeIncome Tax Calculator (New vs Old Regime)Compare tax under both regimes for FY 2026-27, including rebate, surcharge, cess and marginal relief.FreeUK Take-Home Pay CalculatorEstimate income tax, National Insurance and net pay from a gross salary. England, Wales and Northern Ireland.Free

Coming next for creators and influencers

  • Engagement rate calculator — Followers, likes, comments and views in; engagement rate and how it compares out.
  • Video compressor and GIF maker — A clip under a platform’s size limit, without an upload.
  • Silence and filler cutter — The pauses and the ums found from the transcript and cut out.

Want one of these first, or something else? Ask for it — no account needed, and the requests decide what gets built next.

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Frequently asked questions

Is there really no watermark?

None, on anything. The captioned video, the thumbnail, the cut-out and the clip are drawn and encoded by your own browser, and nothing we make adds a mark. There is an optional small “1234tools.com” credit you can switch on in the video tools if you want to; it is off unless you turn it on.

Do my videos get uploaded?

No. Auto Captions downloads a 41 MB speech model into your browser once and transcribes on your device; the image tools do the same with their own models. Your clip is decoded, captioned and re-encoded on your own machine. The AI writing tools are different and say so on their pages: they send the text you type to a language model.

Will it work on my phone?

Yes, in current Chrome and Safari. Phones are slower than laptops at the AI steps, so the pages warn you before a long job; a one-minute clip is comfortable on a recent phone, ten minutes is a laptop job.

Can I use what I make commercially?

Yes. The output is yours, sponsored posts and client work included. The models are under licences that allow commercial use, and each tool’s page names its licence.

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