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What TheToolly is, honestly

TheToolly is a small collection of web utilities for the things people end up googling at 1am: compress this image enough to email, turn this PDF into a Word doc I can edit, count the characters so this tweet fits. There are 29 tools here and no account wall between you and any of them.

Why "browser-based" actually matters

Most of these tools run entirely in your browser tab. That means when you drop a PDF on the image compressor, or paste a paragraph into the word counter, the data is handled by JavaScript executing on your own machine — it isn't uploaded anywhere. We can make this claim because of a few specific technology choices:

• PDF work uses pdf-lib and pdf.js, both JavaScript libraries loaded into the page.
• Image resizing, cropping, and format conversion use the browser's built-in Canvas API.
• Video and audio conversion uses ffmpeg.wasm, a WebAssembly build of FFmpeg that runs inside your tab — slower than native, but never leaves your device.
• OCR uses tesseract.js, with the language model downloaded once and cached, then run locally.
• Password and random number generation use crypto.getRandomValues(), which pulls from your operating system's cryptographic entropy pool.

Two tools are exceptions: the grammar checker sends text to the public LanguageTool API (the standard open-source proofreader), and the PDF-to-Word converter sends the file to a small Python service because pure-JavaScript PDF-to-docx conversion isn't good enough yet. Both are noted on their tool pages. Nothing is stored on either service.

What TheToolly isn't

This isn't a rival to Adobe Acrobat, Grammarly Premium, or a professional video editor. The tools here are the short paths — the single-button, no-account, no-watermark version of jobs that used to need heavy software. If you need enterprise features (batch processing, team accounts, API access, audit logs, compliance guarantees), use a paid product built for that. If you just need to merge five PDFs so you can email them to your accountant, you're in the right place.

We also don't pretend the tools can do things they can't. The background remover uses a simple edge-flood algorithm, not a trained AI model — it works well on uniform backgrounds and struggles with hair and glass. The text similarity checker compares two pieces of text you paste in; it doesn't crawl the web for matches. The "AI humanizer" is a find-and-replace for common AI writing tics, not a detector-bypass tool. Each tool page is honest about what it's actually doing.

Why there are ads

The tools are free and always will be. The site runs on a €10 domain and a small hosting tier. Google ads pay for that, which is the reason the tools stay free with no signup and no paywall. We don't run popups, interstitials, auto-play video ads, or the kind of ad that tries to trick you into thinking it's a download button. Two unobtrusive ad slots per page is the deal.

Suggest a tool

If you open TheToolly looking for something that isn't here, the suggest page is the fastest way to ask for it. The tools on this site all came from someone telling me "you should also have X". That's how the list grows.