Video Converter
Convert videos between MP4, WebM, MKV, AVI, and MOV with codec, resolution, and quality control.
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MP4, WebM, MKV, AVI, MOV and more. Max 500MB.
Supported Conversions
| Format | Codecs | Best For |
|---|---|---|
| MP4 | H.264, H.265 | Universal playback, web, mobile |
| WebM | VP9 | Web browsers, YouTube |
| MKV | H.264, H.265 | Feature-rich container, archiving |
| AVI | H.264 | Legacy compatibility |
| MOV | H.264 | Apple devices, Final Cut Pro |
Frequently Asked Questions
What is the difference between H.264 and H.265 codecs?
H.265 (also called HEVC) achieves roughly 50% better compression than H.264 at equivalent visual quality, resulting in significantly smaller files. However, H.264 has broader compatibility across devices and browsers. Choose H.264 for maximum playback support or H.265 when file size is the priority.
Which video format is best for uploading to social media?
MP4 with H.264 codec is the universally recommended format for social media platforms including YouTube, Instagram, TikTok, and Facebook. It provides excellent quality with broad device support and efficient compression for fast uploads.
What does the CRF quality setting control?
CRF (Constant Rate Factor) determines the quality-to-file-size tradeoff. A value of 18 produces visually lossless output, 23 is the balanced default with good quality, and values above 28 prioritize smaller files at the cost of visible quality reduction.
Can I change the video resolution during conversion?
Yes, you can downscale the resolution during conversion to reduce file size further. For example, converting a 4K video to 1080p can reduce file size by 75% while maintaining sharp quality for most screens and viewing distances.
How long does video conversion take?
Conversion time depends on the file size, chosen codec, and output settings. H.264 encoding is generally faster than H.265 or VP9. A typical 5-minute 1080p video takes about 1-3 minutes to convert on our server using FFmpeg.