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Videomass vs FormatLab: catalog facts
Videomass	FormatLab
Free Free and open source.	Freemium Free to download; the product is sold as FormatLab PRO, so check the developer page for…
Windows, macOS, Linux	Windows, Linux
Access to FFmpeg features without the command line Handles several tasks at once	Converts between a wide range of video and audio formats Compression with user-controlled quality
Video downloading moved to the separate Vidtuber app Many options can be overwhelming for simple conversions	Proprietary licence despite published code Pricing for PRO features is not clearly stated
Downloadable app	Downloadable app
Open source	Closed source
License not stated	License: Proprietary
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 1, 2026

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