AVI to MKV - Online Video Converter
Convert AVI to MKV online. Private, client-side - no upload required. Batch conversion, quality presets, codec control.
About AVI to MKV
Convert AVI to MKV. AVI is Microsoft's 1992 RIFF container, often holding DivX or DV video. MKV is an open container holding multiple video, audio, and subtitle tracks. Only the selected tracks carry over, so pick audio and subtitles first..
Why convert AVI to MKV?
- Smaller files with MKV lossy compression.
- Keep animation and transparency where supported.
- Private, no upload - runs in your browser.
AVI vs MKV
| Animation | Yes | Yes |
|---|---|---|
| Transparency | No | Yes |
| Compression | lossy | lossy |
| Typical use | AVI is Microsoft's 1992 RIFF container, often holding DivX or DV video. | MKV is an open container holding multiple video, audio, and subtitle tracks. |
When not to convert AVI to MKV
- Skip MKV for archival masters: lossy compression discards detail, so keep the AVI original.
- Keep a master copy: repeated exports stack small losses, so archive AVI before batch MKV shares.
Limits
Starting point: AVI - AVI is Microsoft's 1992 RIFF container, often holding DivX or DV video. Old codecs inside may need transcoding before modern players open them. Only the selected tracks carry over, so pick audio and subtitles first. Encode MKV (H.264 / AAC) from AVI at a bitrate near the source, and confirm the audio track before converting.
How conversion works
Conversion runs entirely in your browser with FFmpeg WASM. Files never leave your device.