Compress AVI Online
Reduce the size of AVI video files. Upload your AVI and download a compressed MP4 — a fraction of the size and compatible with all devices.
Click to upload or drag and drop
AVI — max 200MB
This compress avi helps you reduce file size for uploads, email attachments, web performance, and storage limits. It supports JPG, PNG, WebP images and MP4, MOV, WebM, AVI video files and is ideal for uploading old camcorder footage to cloud storage, sharing screen recordings exported as avi and archiving large avi collections in less space.
Unlike other tools, ConvertWiki focuses on speed, simplicity, and privacy. Your files are processed quickly and are not stored on any server.
You can use this tool for:
- Uploading old camcorder footage to cloud storage
- Sharing screen recordings exported as AVI
- Archiving large AVI collections in less space
How to use this tool:
- Upload your file or paste your content into the tool.
- The tool will automatically process it.
- Download the result instantly — no account required.
Why use ConvertWiki?
Why AVI files are so large
AVI (Audio Video Interleave) is one of the oldest video formats. It uses minimal compression, which means raw AVI files from cameras, screen recorders, and older software are often enormous — 1GB or more for a short clip.
Re-encoding an AVI to MP4 with H.264 compression typically reduces file size by 80–95% with no visible quality difference. The output is also far more compatible — MP4 works on every modern device and platform.
When you need to compress AVI
- Uploading old camcorder footage to cloud storage.
- Sharing screen recordings exported as AVI.
- Archiving large AVI collections in less space.
Frequently Asked Questions
AVI files typically compress by 80–95% when converted to H.264 MP4 — a 1GB AVI often becomes 50–150MB.
At the default CRF setting, quality differences are minimal at normal screen sizes.
Up to 200MB. For larger AVI files, use desktop software like HandBrake.
Some AVI files use uncommon audio codecs. If audio is missing, the source audio may be in an unsupported format.
Yes, it is completely free with no signup required.