AVI Converter
Free AVI converter that runs entirely in your browser. No upload, no signup — convert to AVI or from AVI into 200+ supported formats in one click.
Drop any file here or click to browse
All file types supported
About AVI
AVI
AVI (Audio Video Interleave) is one of the oldest and most recognized multimedia container formats, introduced by Microsoft in November 1992 as part of its Video for Windows technology. Built on the Resource Interchange File Format (RIFF) structure, AVI interleaves audio and video data in alternating chunks, allowing synchronized playback without requiring sophisticated stream management. The format is codec-agnostic, meaning it can hold video compressed with virtually any codec, from early Cinepak and Indeo to modern DivX, Xvid, and H.264 streams. This flexibility contributed to widespread adoption across personal computers throughout the 1990s and 2000s. AVI supports multiple audio streams, enabling multilingual content within a single file. Despite being decades old, AVI remains one of the most universally recognized multimedia formats and is still widely supported by media players and editing tools across all major operating systems.
- Developer
- Microsoft
- Initial release
- November 10, 1992
- Compression
- Lossy
- Color depth
- up to 10-bit
- Transparency
- No
Best for
- Archiving legacy video footage
- Editing in older video software
- Storing multiple audio tracks
- Playback on classic media players
- Cross-codec video container use
Pros
- +Codec-agnostic — accepts nearly any video codec
- +Supports multiple audio streams for multilingual content
- +Universally recognized by media players and editors
- +Simple RIFF chunk structure easy to parse
Cons
- −No modern streaming or chapter metadata support
- −Files tend to be large with inefficient codecs
- −No built-in subtitle standard
- −Lacks DRM and modern container features
How to convert with the AVI converter
- 1
Choose the AVI file you want to convert from your PC, Mac or mobile device, or simply drag and drop it onto the page.
- 2
When your file is uploaded, the output format is preset to AVI. You can add more files to batch-convert them together.
- 3
Click the gear icon and tweak codec, quality, resolution or other options if you need them, then apply to all files if you want.
- 4
Click the Convert button. When conversion completes, download the result to your computer or save it back to Google Drive / Dropbox.
Frequently Asked Questions
What is an AVI file?▼
AVI is Microsoft's classic video container from the 1990s. It holds video and audio without modern subtitle or multi-track support, and files can be large because it does not compress efficiently by default.
Why convert AVI to MP4?▼
AVI barely plays on phones and modern editors, and its files are heavy. Converting to MP4 makes the video playable on any device, usually at a much smaller size.
Is AVI outdated?▼
Largely yes — most new content uses MP4, MKV, or WebM. AVI is still found in old archives and some screen recorders, but converting it modernizes playback instantly.
Does converting AVI lose quality?▼
With careful codec settings it is visually indistinguishable; converting to H.264 MP4 at a matching bitrate preserves quality while shrinking the file.
Are my old videos uploaded during conversion?▼
No — conversion happens locally in your browser with WebAssembly.
Supported Conversions
Specific converters
100% Free
No hidden fees, no subscriptions, and no limits. Enjoy complete access to all features gratis.
No Signup Required
Start converting immediately without creating an account or sharing email address.
Private & Secure
Your files never leave your device. All processing is completed locally for maximum privacy.
Batch Conversion
Convert multiple files simultaneously to save time. Fast and efficient multi-file queue.
Runs in Browser
Utilizes advanced client-side WebAssembly technology to process files directly inside your tab.
200+ Formats
Supports a wide variety of formats including images, documents, audio, video, and more.
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