AVI — Audio Video Interleave
VideoAVI files are frequently encoded with outdated codecs like DivX or MJPEG that result in large file sizes relative to quality. Modern re-encoding with H.264 inside an AVI or MP4 container can shrink file size by 50–80% while substantially improving compatibility across modern devices.
✓Common use cases
- ›Compressing legacy AVI home videos for digital archiving
- ›Reducing AVI screen capture recordings for tutorial sites
- ›Shrinking AVI footage from older camcorders for online upload
- ›Optimizing AVI game recordings for YouTube or Twitch upload
★Advantages
- ›Modernizes legacy AVI files with efficient H.264 compression
- ›Huge size savings (50–80%) from outdated high-bitrate codecs
- ›Improves cross-device playback compatibility simultaneously
- ›Retains subtitle tracks and chapter markers when available
⚙Technical details
AVI is a Microsoft container supporting many codecs (DivX, Xvid, MJPEG, Uncompressed). FFmpeg re-encodes the video stream to H.264 with CRF control and audio to AAC or MP3, dramatically reducing the bitrate. OpenDML extensions allow AVI files larger than 2 GB.
Compress your AVI file
Drop your AVI file here
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Max file size: 100 MB · Your file is processed securely and deleted after compression.
Frequently asked questions
Does compressing AVI reduce quality?
For video and audio, compression means re-encoding at a lower bitrate. Using our recommended medium level strikes a balance between file size and perceptible quality — the output is enjoyable on most screens and speakers.
How much can I reduce a AVI file?
AVI files can typically be reduced by up to 80% depending on the source content and the compression level you select. Files with lots of detail compress less than simpler content.
Is my AVI file safe when I compress it?
Yes. Your file is uploaded over an encrypted HTTPS connection, processed on our secure servers, and permanently deleted immediately after you download the compressed output. We never store or share your files.
What tool is used to compress AVI files?
We use FFmpeg — a battle-tested, open-source compression engine trusted by developers worldwide — to process AVI files reliably and efficiently.