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Shutter Encoder vs Constrict: catalog facts
Shutter Encoder	Constrict
Free Free and open source under the GPL. Donations are welcomed.	Free Free and open source under the GPL-3.0-or-later.
Windows, macOS, Linux	Linux
Professional codecs including ProRes, DNxHR, AV1 and VP9 alongside the usual ones Lossless cut, trim, remux, stream extraction and audio replacement	Targets an exact output file size automatically Batch compression of multiple videos
The interface exposes a lot at once and takes orientation Java-based, so it is a heavier install than the FFmpeg it drives	Steep size reductions can badly hurt quality or fail Speed limited by local hardware
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-3.0-or-later
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 1, 2026

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