WEBM Compressor
VP9 compression tuned for the smallest web-friendly file.
Drop files, or click to browse
WEBM files only — processed one at a time
Frequently asked questions
What's the difference between quality and resolution here?+
Quality controls how aggressively each frame is compressed; resolution controls the pixel dimensions. Lowering either shrinks the file — combine both for the biggest savings.
Will the output still play everywhere?+
Yes — the WEBM container and codec choice are kept broadly compatible with players and editors.
Is my video uploaded anywhere?+
No, compression runs locally via ffmpeg.wasm in your browser.
Need another format? Try the full Video Compressor, or explore all video tools.