Convert your .webm files to .avi format online for free. No software to install. Fast, secure, and easy.
Pro account required for audio & video
Drag and drop your .webm file or click to browse.
Select AVI as your output format.
Click Convert and download your .avi file.
Converting WebM to AVI optimizes your video for different playback requirements. WebM (Web Media) and AVI (Audio Video Interleave) use different container structures with different strengths.
WebM (Web Media, introduced in 2010) uses proprietary compression. AVI (Audio Video Interleave, introduced in 1992) uses proprietary compression. WebM browser support: All modern browsers (Chrome, Firefox, Edge; Safari with AV1 only). AVI browser support: None.
The quality impact depends on the specific settings used during conversion. AVI uses compression that may affect quality depending on the chosen settings.
Typical WebM file size: A 1-minute 1080p VP9 video: ~10-20 MB. Typical AVI file size: A 1-minute 1080p DivX video: ~20-40 MB; uncompressed: ~3 GB.
For the best conversion results, always start from the highest quality source file available. Converting from a previously compressed file compounds any existing compression artifacts. When in doubt, use higher quality settings — you can always re-convert at lower quality later, but you cannot recover quality that has been lost.
Convert WebM to AVI with 3 free conversions per day. No hidden fees.
Create a free account in 10 seconds and start converting immediately. No credit card required.
Files are encrypted during transfer, processed on secure servers, and deleted immediately after conversion.
Convert files from any device — desktop, tablet, or phone. No software to install, works in any modern browser.
SquishConvert supports over 358 file conversion combinations across images, documents, audio, and video.
Your converted .avi file maintains the best possible quality. No unnecessary compression or quality loss.
Video conversion requires a Pro account. See pricing — starting at $4.99/month
You get 3 free conversions per day. Video conversions require a Pro account.
Most files convert in under 10 seconds. Larger files may take a bit longer depending on size.
Yes. Files are encrypted during transfer, processed on secure servers, and deleted immediately after conversion. We never store your files.
Currently, SquishConvert converts one file at a time. Batch conversion is coming soon — stay tuned!
Free users can convert files up to 10 MB. Pro users can convert files up to 500 MB.