Video Converter

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Open source licences

The converter on this site is FFmpeg, compiled to WebAssembly by the ffmpeg.wasm project and served from this domain. Because we distribute that binary to your browser, the GPL applies to us, and this page is how we meet it.

FFmpeg

The build served here is @ffmpeg/core 0.12.10. Its configuration includes --enable-gpl --enable-libx264 --enable-libx265 --enable-libvpx --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libopus --enable-zlib --enable-libwebp --enable-libfreetype --enable-libfribidi --enable-libass --enable-libzimg (abridged; the full string is printed by the binary itself). Because --enable-gpl is set and x264 and x265 are linked in, the result is distributed under the GNU General Public License, version 2 or later - a copy of which is served from this site at /licenses/gpl-2.0.txt.

Written offer of source code

The complete corresponding source code for the exact binary this site serves is published by the ffmpeg.wasm project at github.com/ffmpegwasm/ffmpeg.wasm (tag v0.12.10), which builds it from FFmpeg's own sources at ffmpeg.org/download.html.

AppsOverflow LLC also offers, valid for three years from the date you received the binary and to any third party, to give you a complete machine-readable copy of the corresponding source code for a charge no more than the cost of physically performing the distribution. Write to ceo@appsoverflow.com and we will send it.

Components inside that build

  • x264 - H.264 encoder, GPL 2 or later.
  • x265 - H.265 encoder, GPL 2 or later.
  • libvpx - VP8 and VP9, BSD 3-clause.
  • LAME - MP3 encoder, LGPL 2.1 or later.
  • libopus, libvorbis, libtheora - BSD-style licences.
  • libass (ISC), libwebp (BSD), zlib (zlib licence).
  • FreeType - dual FreeType Licence / GPLv2. Portions of this software are copyright © The FreeType Project (freetype.org). All rights reserved.
  • FriBidi - LGPL 2.1 or later.
  • zimg - WTFPL.
  • ffmpeg.wasm JavaScript wrapper - MIT.

The iPhone and Android apps

The apps do not ship this build. They use ffmpeg-kit under the LGPL v3, with the device's own hardware encoders rather than x264 or x265, and their notices ship inside the apps themselves.

Trademarks

Apple, iPhone, iPad, macOS, QuickTime, Final Cut Pro and iMovie are trademarks of Apple Inc. Google, Android and Google Play are trademarks of Google LLC. Windows and Windows Media are trademarks of Microsoft Corporation. Adobe Premiere Pro is a trademark of Adobe Inc. This site and the Video Converter app are not affiliated with, endorsed by, or sponsored by any of them.