About worldof.tools
worldof.tools is a free set of 46 small tools for video, audio, images, PDFs and text. Each one does a single job, such as getting a video under Discord's upload limit or a photo under 50 KB for a form.
How the tools work
Every tool runs in your browser, on your own phone or computer. When you pick a file, the page reads it from your device, does the work, and hands you the result to download. Your files are never uploaded, so the tools also work for private documents and photos.
- Video uses the video encoder built into your browser, which is why it needs a current version of Chrome, Edge, Safari or Firefox.
- Images are drawn and saved with the browser's own image tools.
- The code for heavy jobs, such as video or PDF, is downloaded from this site only when you start one, and the browser keeps it for next time.
Because the work happens on your device, a slow or old device takes longer, and very large files can be too much for a phone. Each tool says its size limit before you start.
Where the numbers come from
Pages that name a platform limit, such as a file size for WhatsApp or a photo size for a passport, link to the official page the number came from and say when it was checked. Limits change, so check that page if something does not fit.
How the site is paid for
The tools are free and need no account. The site may show sponsored placements in clearly marked spaces. It will not use ad networks that track you across other sites.
Open source code
These projects do much of the work. Thank you to their authors.
- Mediabunny (MPL-2.0), for reading and writing video and audio files.
- LAME, through @mediabunny/mp3-encoder (LGPL-2.0), for making MP3 files.
- PDF.js (Apache-2.0), for drawing PDF pages for PDF to JPG.
- pdf-lib (Cantoo fork) (MIT), for merging and splitting PDFs and making PDFs from images.
- heic-to (LGPL-3.0), for opening HEIC photos in browsers that cannot.
- gifenc and gifuct-js (MIT), for writing and reading GIFs.
- uqr (MIT), for making QR codes.