Convert AVI to MP4
Fast, free, and secure AVI to MP4 conversion. No registration required.
Fast, free, and secure AVI to MP4 conversion. No registration required.
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High Quality
Maintain maximum quality during conversion
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How to Convert AVI to MP4
Upload AVI File
Click the "Select File" button to upload your avi file from your device.
Start Conversion
Click the "Convert" button to instantly start converting to MP4.
Download MP4
Download your converted mp4 file immediately after processing.
Why Convert AVI to MP4?
Converting from AVI Video to MP4 Video is useful when you need universal compatibility (plays everywhere). AVI Video has limitations: large file sizes compared to mp4. MP4 Video addresses this by offering universal compatibility (plays everywhere) and excellent quality-to-size ratio. MP4 (MPEG-4 Part 14) is the most widely used video container format, supported by virtually every device, browser, and platform.
Xonvert uses professional-grade conversion tools to ensure the highest possible quality when converting AVI Video to MP4 Video. The output is optimized for the target format's strengths.
AVI vs MP4 — Technical Comparison
| Feature | AVI | MP4 |
|---|---|---|
| Container | RIFF-based | MPEG-4 Part 14 |
| Video Codecs | DivX, Xvid, H.264, MJPEG | H.264, H.265, AV1 |
| Audio Codecs | MP3, PCM, AC3 | AAC, MP3, AC3 |
| Max Resolution | Unlimited (codec-dependent) | — |
| Streaming | Not supported natively | HTTP Live Streaming (HLS), DASH |
| Subtitles | — | SRT, SSA, VobSub |
About AVI Video
AVI (Audio Video Interleave) is one of the oldest video container formats, introduced by Microsoft in 1992. While largely superseded by MP4 and MKV for modern use, AVI remains common in legacy systems and offers wide compatibility with older software and devices.
Strengths
- ✓ Wide compatibility with older devices and editors
- ✓ Simple structure easy to process
- ✓ Can contain uncompressed video
- ✓ Broad codec support
Limitations
- • Large file sizes compared to MP4
- • Limited subtitle and metadata support
- • No native streaming support
- • Outdated format for modern workflows
Developed by Microsoft (1992)
About MP4 Video
MP4 (MPEG-4 Part 14) is the most widely used video container format, supported by virtually every device, browser, and platform. MP4 typically uses H.264 or H.265 video encoding with AAC audio, delivering an excellent balance of quality and file size for streaming, downloads, and playback.
Strengths
- ✓ Universal compatibility (plays everywhere)
- ✓ Excellent quality-to-size ratio
- ✓ Supports streaming and progressive download
- ✓ Stores subtitles, chapters, and metadata
Limitations
- • Patent-encumbered codecs (H.264/H.265)
- • Not ideal for lossless archival
- • Re-encoding reduces quality
- • Container format (quality depends on codec)
Developed by ISO/IEC (2001)
AVI to MP4 — Frequently Asked Questions
What is the difference between AVI and MP4?
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AVI Video avi (audio video interleave) is one of the oldest video container formats, introduced by microsoft in 1992. MP4 Video mp4 (mpeg-4 part 14) is the most widely used video container format, supported by virtually every device, browser, and platform. The key differences are: AVI Video offers wide compatibility with older devices and editors, while MP4 Video provides universal compatibility (plays everywhere).
Will I lose quality converting AVI to MP4?
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Xonvert uses professional-grade conversion tools to ensure the highest possible quality when converting AVI Video to MP4 Video. The output is optimized for the target format's strengths.
When should I use MP4 instead of AVI?
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Use MP4 Video when you need web video streaming or social media uploads. Universal compatibility (plays everywhere). Use AVI Video when legacy system compatibility.
Can I convert AVI to MP4 for free?
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Yes. Xonvert lets you convert AVI to MP4 completely free with no registration. Free users get a daily conversion limit. Upgrade to Pro ($4.99/mo) for higher limits, larger file sizes, and priority processing.
What are the best use cases for MP4?
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MP4 Video is best for: Web video streaming; Social media uploads; Video downloads and storage; Mobile video playback. Universal compatibility (plays everywhere). Excellent quality-to-size ratio.