How it works
Complete the job in three clear steps
- Choose a AVI file.
- Set the available options and create a MKV file.
- Review and download the new file.
Private Lucaden video & audio tool
AVI to MKV Converter
Convert AVI media to MKV locally with H.264 video and AAC audio in a Matroska container.
Free to use Your file stays on this device while FFmpeg WebAssembly processes it in temporary browser memory.
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Important
Check the result before relying on it
Keep an untouched copy of important source files. Browser processing depends on available device memory, and you should inspect every downloaded result before deleting the original.
Practical details
What this Lucaden tool does
Convert AVI media to MKV locally with H.264 video and AAC audio in a Matroska container.
Lucaden creates a separate output and leaves the original file unchanged.
Included capabilities
- AVI input
- MKV output
- Local FFmpeg processing
- Result preview and download
Useful for
- Meet a platform format requirement
- Prepare an editing copy
- Improve playback compatibility
- Standardize a media archive
Questions
About this tool
Is the media uploaded?
No. The browser FFmpeg runtime works on the file in temporary device memory.
Is conversion lossless?
Usually not. Codec conversion can change quality and file size.
Open-source foundations
Built transparently
Lucaden documents its standards sources, architectural references, and permissive runtime dependencies while keeping this workspace consistent with the Lucaden interface.