
Ffmpeg.wasm
ffmpeg.wasm runs FFmpeg inside browsers through WebAssembly and JavaScript for video and audio recording, conversion, and streaming.

About Ffmpeg.wasm
ffmpeg.wasm is a pure WebAssembly and JavaScript port of FFmpeg. It enables video and audio recording, conversion, and streaming directly inside browsers.
It is maintained as an open source repository under the MIT license with an API for browser-based use.
Key features
- Record video and audio inside browsers
- Convert video and audio inside browsers
- Stream video and audio inside browsers
- Pure WebAssembly and JavaScript port of FFmpeg
- Runs FFmpeg functions directly inside browsers
- Covers video and audio recording, conversion, and streaming
- Open source under MIT license
Ffmpeg.wasm at a glance
- Category
- Design & Creative › Video Editing & Animation
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Guides for Video Editing & Animation
Ffmpeg.wasm alternatives
Tools and sites you could use instead, ranked by how closely they match.
ffmpeg.wasm ports FFmpeg to WebAssembly and JavaScript so video and audio can be recorded, converted, and streamed in a browser.
ffmpeg-web provides web and desktop interfaces for converting video, audio, and images with FFmpeg or ffmpeg.wasm.
This browser-based video editor uses ffmpeg.wasm to process video locally, without uploads or server-side file handling.
IFME offers a graphical encoder for H.264, H.265, H.266, and AV1, plus remuxing, stream merging, and subtitle tools.
StaxRip provides a Windows encoding interface for video and audio tools including FFmpeg, x265, and MKVToolNix.
This tutorial explains FFmpeg libav and media workflows including codecs, transmuxing, and transcoding, with several translations available.
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