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Supports MP4, MKV, AVI, MOV, WebM and more
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Save your converted AVI file
AVI may be needed for compatibility with legacy software, older media players, or specific hardware that doesn't support modern MP4. It's also sometimes required for certain video editing workflows.
MP4 is the most widely used video container format, supporting H.264, H.265/HEVC, and AV1 codecs. It offers excellent compatibility across all devices, browsers, and platforms while maintaining a good balance between file size and quality.
AVI is a classic multimedia container format introduced by Microsoft in 1992. While considered legacy, it remains widely used for compatibility with older systems and simple video storage.
MP4 is modern and efficient with H.264/H.265 support. AVI is a legacy format with larger files but wider compatibility with older systems.
Common scenarios for this conversion
Convert MP4 to AVI when your device or app doesn't support the original format.
Upload AVI instead of MP4 for better support on YouTube, Instagram, and TikTok.
Convert to AVI for seamless import into professional editing software.
Play MP4 files on any phone by converting to AVI.
Your files never leave your device. All conversion happens in your browser — no server uploads.
Hardware-accelerated conversion powered by WebCodecs and WebAssembly.
Convert between any video format combination.