Modernize an old AVI file into a clean, universally compatible MP4. AVI is a 30-year-old container that struggles with smartphones, web players, and most modern editors — an MP4 export instantly restores compatibility everywhere.
AVI is Microsoft’s mid-90s video container. It still appears in old camcorder footage, screen recorders, and archived family clips. AVI lacks modern codec features (no proper streaming, no chapters, oversized files) and is rejected by Instagram, TikTok, and most modern editors — converting it to MP4 is almost always the right move.
MP4 (MPEG-4 Part 14) is the most widely supported video container on the planet. It packs H.264 or H.265 video with AAC audio into a single file that plays natively on iPhone, Android, Windows, macOS, web browsers, smart TVs, and every modern editor. Use MP4 when you need a finished, shareable video that will just work, anywhere, without re-encoding.
Server-side ffmpeg + yt-dlp on auto-scaling workers. Most files finish in seconds, not minutes.
Every uploaded or fetched file is virus-scanned before it ever reaches your download.
Files live on encrypted S3 storage for 2 hours, then are permanently purged. We never log file contents.
Free for up to 10 conversions per hour with no account. Pro unlocks larger files and priority queue.
Drop a AVI file from your device, or paste a public URL pointing to the AVI you want to convert.
The output is pre-set to MP4. You can adjust quality or bitrate in the advanced options if you need a smaller file.
Click Convert. Our cloud workers fetch the AVI, scan it for malware, and run the AVI → MP4 pipeline.
A one-time pre-signed link appears as soon as the MP4 is ready. The file is automatically deleted from our storage 2 hours later.
Browse other popular file conversions handled by the same pipeline.