How do I compress an AVI file?

Drop the AVI onto the compressor above, keep Balanced or pick another level, and click Compress. Download the smaller AVI when it's done; it usually takes a few seconds.

Does compressing AVI reduce quality?

A little, by design: AVI is a lossy format. Balanced is tuned to look the same for most uses; choose Light if you want to stay closer to the original.

How much smaller will my AVI get?

Usually a lot, because AVI files often use dated codecs or very high bitrates.

Can I compress AVI to a specific size?

Yes. Set a target size in the compressor, or a percentage to reduce by, and the file is compressed to land at or just under it.

Is it safe to compress AVI files here?

Yes. AVI files are compressed inside your browser with WebAssembly and never uploaded to a server.

Is the AVI compressor free?

Yes. Compression is free with no watermark and no sign-up, within the same daily allowance as conversions.

Should I convert my AVI instead?

Sometimes. MP4 is smaller for the same quality and plays everywhere. The AVI to MP4 converter does that in one step.

AVI→smaller AVI→MP4 JPG→smaller AVI→MP3 PNG→smaller AVI→WebP MP4→smaller AVI→MOV MP3→smaller AVI→GIF PDF→smaller AVI→WAV WebP→smaller AVI→WebM HEIC→smaller AVI→MKV DOCX→smaller AVI→M4A GIF→smaller AVI→FLAC SVG→smaller AVI→AAC MOV→smaller AVI→OGG AVIF→smaller AVI→WMV AVI→Opus M4A→smaller AVI→FLV AVI→M4V WebM→smaller AVI→MPEG AVI→3GP MKV→smaller AVI→WMA AVI→MPG XLSX→smaller AVI→TS AVI→AIFF EPUB→smaller AVI→AMR AVI→VOB FLAC→smaller PNG→JPG JPG→PNG PPTX→smaller PNG→WebP JPG→WebP AAC→smaller WebP→PNG WebP→JPG ZIP→smaller HEIC→PNG HEIC→JPG TIFF→smaller MP4→MP3 PNG→JPEG OGG→smaller JPG→JPEG JPEG→PNG Opus→smaller JPEG→JPG PNG→PDF 7Z→smaller JPG→PDF PDF→PNG ODT→smaller PDF→JPG HEIC→WebP TAR.GZ→smaller MP4→WebP PDF→DOCX ODS→smaller DOCX→PDF JPEG→WebP ODP→smaller WebP→JPEG PNG→GIF TAR.BZ2→smaller JPG→GIF GIF→PNG TAR.XZ→smaller GIF→JPG MP4→MOV MOV→MP4 WebP→PDF HEIC→JPEG WebP→GIF GIF→WebP HEIC→PDF MP3→WAV WAV→MP3 JPEG→PDF PDF→JPEG SVG→PNG SVG→JPG HEIC→GIF MOV→MP3 MP4→GIF GIF→MP4 JPEG→GIF GIF→JPEG PNG→AVIF JPG→AVIF AVIF→PNG AVIF→JPG MP3→M4A M4A→MP3 GIF→PDF SVG→PDF PNG→SVG JPG→SVG PDF→SVG SVG→WebP MOV→WebP MP4→WAV MP4→WebM WebM→MP4 WebP→AVIF AVIF→WebP WebP→SVG SVG→JPEG MP4→MKV MKV→MP4 HEIC→AVIF MP4→M4A JPEG→AVIF AVIF→JPEG JPEG→SVG MOV→GIF GIF→MOV WebM→MP3 AVIF→PDF MP3→FLAC FLAC→MP3 MP4→AVI MKV→MP3 GIF→AVIF AVIF→GIF SVG→GIF GIF→SVG WebM→WebP MOV→WAV XLSX→PDF CSV→PDF EPUB→PDF PDF→EPUB MOV→WebM WebM→MOV MKV→WebP PNG→ICO JPG→ICO ICO→PNG ICO→JPG MP3→AAC WAV→M4A AAC→MP3 M4A→WAV MP4→FLAC MOV→MKV

Compress AVI

Make AVI files smaller without visible quality loss. Free and private: compressed in your browser on computers; on phones, in our fast cloud and deleted automatically.

In your browser (fast cloud on phones)
Same format, smaller file
Batch & ZIP download

How to compress AVI

1
Add your AVI files
Drag and drop AVI files onto the compressor, paste them, or click to browse. You can add several at once.
2
Pick a level or a target
Balanced is selected and suits most files. Choose Light to stay closer to the original or Strong for the smallest file, or set a target size or a percentage to reduce by.
3
Compress
Click Compress. Your AVI files are processed right in your browser, usually in seconds.
4
Download
Download each smaller AVI, or everything at once as a ZIP.

What compression does to AVI

LossyIn your browser

Re-encodes the video at a lower bitrate.

Light: Near-lossless: re-encodes conservatively and keeps the full resolution.
BalancedDefault: The default: looks the same for most uses, and typically 40–70% smaller.
Strong: Smallest file: lower quality, and large videos are downscaled.

Need it much smaller? MP4 is smaller for the same quality and plays everywhere. Convert AVI to MP4

Need an exact size?

Set a target size in the compressor above, or a percentage to reduce by, and each AVI is compressed to land at or just under it. These pages preset the most common video sizes and take AVI too:

AVI · Audio Video Interleave

AVI is Microsoft's classic video container from 1992. It's still found on older cameras and archives but lacks modern features.

Type: Video
Extension: .avi
MIME: video/x-msvideo
Best for: older camcorder footage and legacy video archives

Legacy format

All AVI conversions →

Compress other videos

All videos →

Compressing AVI: frequently asked questions

Free, private and in your browser

Smaller AVI files, in seconds.

No sign-up, no watermark, no upload. Drop a file and get it back lighter.

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Most conversions never leave your device
Cloud files deleted automatically
No watermarks