Browser tools that never upload your files
A hub for small, single-purpose tools. Each one runs entirely in your browser — no accounts, no uploads, no server holding your files.
TS → MP4Batch convert .ts recordings to MP4Drop DVR and over-the-air captures in and get MP4s that open in QuickTime, stream-copied as fast as the source allows. Runs on FFmpeg compiled to WebAssembly — the files never leave your machine.MOV → MP4Batch convert QuickTime .mov files to MP4Drop QuickTime movies in and get MP4s that play anywhere — H.264, HEVC and AAC copied across untouched, ProRes/DV/PCM re-encoded. Also runs on FFmpeg compiled to WebAssembly, so the files stay on your machine.Video → AudioExtract a video’s audio track as WAV or MP3Drop a video in, pick WAV or MP3, and download the audio track by itself — no upload, no editing suite. Runs on FFmpeg compiled to WebAssembly, so the video never leaves your machine.
Every tool here is a page, not a service: the conversion runs on your own machine with FFmpeg compiled to WebAssembly, so your file is never uploaded and nothing is kept when you close the tab. That is not a setting you have to trust us to leave alone — there is no upload step to disable. How that works, and what the site does and does not do, is on the about page.