Open-source licences

Last updated: 15 October 2026

This site is built on open-source software. Conversions are done by FFmpeg, which runs in your browser as WebAssembly.

ComponentVersionLicenceSource
FFmpeg (@ffmpeg/core)0.12.10GPL-2.0-or-laterffmpeg.wasm, ffmpeg.org
ffmpeg.wasm (@ffmpeg/ffmpeg)0.12.15MITffmpeg.wasm
Bricolage Grotesque5.3.0OFL-1.1Google Fonts
Instrument Sans5.3.0OFL-1.1Google Fonts
IBM Plex Mono5.3.0OFL-1.1Google Fonts

FFmpeg

This software uses code of FFmpeg, compiled to WebAssembly by the ffmpeg.wasm project. The build used here includes libraries licensed under the GNU General Public License, such as x264 and LAME, and is therefore distributed under the GPL, version 2 or later.

The complete corresponding source code, with the build scripts, is available in the ffmpeg.wasm repository for the version listed above. The engine is delivered unmodified.

FFmpeg is a trademark of Fabrice Bellard, originator of the FFmpeg project. This site is not affiliated with or endorsed by the FFmpeg project.

Fonts

Bricolage Grotesque, Instrument Sans and IBM Plex Mono are used under the SIL Open Font License, version 1.1, and are served from this site.