A complete video encoder, compiled to WebAssembly and running inside your browser. Convert, compress and extract without uploading a single frame.
Turn a clip into an optimised animated GIF with palette generation and frame-rate control.
Shrink an MP4 with H.264 and a quality slider — usually 50–80% smaller.
Re-encode to VP9 and Opus for smaller, modern web delivery.
Pull the soundtrack out of any video as a high-quality MP3.
Browser-based video processing costs you a one-time 31 MB engine download and runs slower than a server would. In exchange, your footage never leaves your device — no upload wait, no storage on someone else's disk, no file-size paywall, and it keeps working offline once loaded.
For a ten-second clip that trade is almost always worth it. For a two-hour recording, a desktop encoder is the faster tool.
The tools run a complete video encoder compiled to WebAssembly, executing inside your browser tab. Your video is read from disk into the page and never sent anywhere.
The video engine is roughly 31 MB of WebAssembly and downloads once. Your browser caches it, so subsequent conversions start immediately.
Everything happens in memory, so a few hundred megabytes is a realistic ceiling on a typical laptop. For long recordings, trim first or use a desktop encoder.
Usually yes — a browser sandbox running a single thread cannot match a server farm. What you get instead is privacy, no queue, no file-size paywall, and no upload time, which for short clips often makes it faster end to end.
MP4, MOV, WebM, MKV, AVI, M4V, OGV and animated GIF. Because the engine does the demuxing and decoding itself, the file does not have to be one your browser can play natively.