Compress AVI
Free, fast and secure — shrink your AVI file right in your browser.
AVI
Shrink your AVI for easy sharing and upload
Compressing AVI re-encodes your video at the size you choose, cutting the file down dramatically so it uploads quicker, fits attachment limits and streams smoothly — while keeping it looking sharp.
How to compress AVI
- 1 Drop your AVI file into the compressor above.
- 2 Pick a compression level and it is optimised automatically.
- 3 Download your smaller AVI file instantly.
About AVI
AVI
AVI video
AVI is a long-standing Microsoft container. It is widely readable on desktops and can store high-quality video, but its files are large and it lacks modern streaming features.
Strengths
- Broad desktop compatibility
- Simple, well-understood format
- Can hold high-quality video
Limitations
- Large file sizes
- No modern streaming features
- Weak mobile/browser support
Best for: Legacy desktop video — usually converted to MP4 for sharing and streaming.
Frequently asked questions
Upload your AVI file above, pick a compression level and it is optimised automatically. When it is ready, download your smaller file — the whole thing takes just a few seconds in your browser.
You choose the balance between size and quality. “Light” keeps the video close to the original, while “Strong” maximises the saving. Even strong compression stays perfectly watchable.
It depends on the file and the level you pick, but savings of 40–80% are common — larger, less-optimised files shrink the most.
Yes. The compressor is free to use, with no watermark and no sign-up required.
Your files are processed securely and are never shared with anyone.