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FFmpegFormatLab
Free

Free and open source. The codebase is mainly LGPL 2.1 with some components under the GPL…

 Freemium

Free to download; the product is sold as FormatLab PRO, so check the developer page for…

Windows, macOS, Linux, Command line Windows, Linux
  • Handles practically every container and codec there is
  • Remuxes without re-encoding, so a container change is instant and lossless
  • Converts between a wide range of video and audio formats
  • Compression with user-controlled quality
  • Command line only, with syntax that punishes guessing
  • Argument order matters in ways that are not obvious
  • Proprietary licence despite published code
  • Pricing for PRO features is not clearly stated
Downloadable app Downloadable app
Open source Closed source
License: LGPL-2.1 License: Proprietary
No account needed Not stated if an account is needed
Works offline Works offline

Checked September 21, 2026

Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.