Constrict compresses your videos to your chosen file size — useful for uploading to services with specific file size limits. It uses FFmpeg for the heavy lifting.
No more relying on online services for video compression, or the manual trial-and-error of re-encoding at various bitrates yourself.
This is free and open source software.
Key Features
- An intuitive, easy to use interface.
- Automatic calculation of average bitrate (ABR), resolution, framerate, and audio quality each video is re-encoded with to meet the target file size.
- Bulk compression of multiple videos to one output directory.
- Customization of framerate limits, to ensure a clearer or smoother image.
- A choice of codecs to encode output files with, including H.264, HEVC, AV1, and VP9.
Website: github.com/Wartybix/Constrict
Support:
Developer: Wartybix
License: GNU General Public License v3.0

Constrict is written in Python. Learn Python with our recommended free books and free tutorials.
Related Software
| Video Converters | |
|---|---|
| HandBrake | Multithreaded cross-platform media transcoding application |
| FFmpeg | Multimedia player, server and encoder |
| Shutter Encoder | Graphical frontend to FFmpeg with editing features |
| FastFlix | GUI for H.264, HEVC and AV1 hardware and software encoding |
| Videomass | Cross-platform GUI for FFmpeg and youtube-dl |
| avconv | Part of libav-tools; fork of FFmpeg |
| VLC | Vdeo player which also converts multimedia to different formats |
| mpv | Cross-platform media player with video encoding support |
| ab-av1 | AV1 encoder with automatic quality selection through sample testing |
| MEncoder | MEncoder is included in MPlayer |
| FFQueue | Graphical frontend to FFmpeg written in C++ |
| Edconv | User-friendly FFmpeg GUI |
| transcode | Utility to encode raw video/audio streams |
| OmniGet | Uses FFmpeg to perform the video conversion |
| MystiQ | GUI for FFmpeg, a powerful media converter |
| Frame | Desktop media conversion utility |
| ffdash | VP9 video encoder |
| Constrict | Compress videos to target sizes |
| Leonardo | Media conversion application |
| Ciano | Easy way to convert your multimedia files to the most popular formats |
| Recoder | GTK4 video transcoding application |
| VidCom | Simple utility for video archiving and compression |
Read our verdict in the software roundup.
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