AVI Compressor
Pick a quality, keep what matters. Free, fast, no signup.
One file at a time for now
Batch processing isn't available yet: drop files one by one, or use the Merger to join them.
- Free, no signup
- No watermark, ever
- Files auto-delete in 1 hour
- Nothing to install
AVI is the veteran of desktop video: dependable in 1995, cranky about everything invented since. Audio Video Interleave: an early container that predates streaming and most codecs you'd use today.
- Born
- 1992, Microsoft
- Type
- video · container
- Typical size
- usually bulky: its era's codecs compress far less than H.264 or H.265
- Plays on
- Old Windows software and desktop players; phones and browsers mostly refuse.
- Fun fact
- AVI shipped with Windows 3.1: it's older than the DVD, the MP3 and every browser you've ever used.
What compressing AVI actually does
Compressing AVI means re-encoding the video inside with a modern codec at a quality you choose: low, medium or high. Camera footage typically gives up 30–70% of its size before quality visibly suffers, and screen recordings squeeze even harder. AVI runs usually bulky: its era's codecs compress far less than H.264 or H.265, so there's usually plenty to give.
Questions people ask
How much smaller will my AVI get?
It depends on how generously it was encoded: AVI typically runs usually bulky: its era's codecs compress far less than H.264 or H.265, and most files give up 30–70% at the medium preset before quality visibly suffers.
Will I lose quality working with AVI here?
Where possible Flippy copies streams without re-encoding; when a re-encode is unavoidable it happens once, at quality matched to your AVI.
Is this AVI compressor really free?
Yes: free for everyday use with no daily cap, no signup, and your files delete themselves from our servers within an hour. Pro exists for heavy days: bigger files, whole folders at once.