Convert AVI to MKV for Multi-Track Archival
Convert your Audio Video Interleave files to Matroska Video online for free. AVI produces large files, lacks modern streaming support, and has limited codec flexibility — MKV solves that. No registration, no watermarks, instant download.
Drag & drop your file here, or
Max 100 MB • Max 10 min duration • Max 1080p
How to Convert AVI to MKV — 3 Steps
FFmpeg re-encodes your AVI file to H.264, H.265, or VP9 MKV — multi-track archival.
Upload your AVI file
Select your AVI file from old camcorders. Files up to 100 MB and 10 minutes in duration are accepted.
Confirm and convert
Confirm you own the file and click Convert to MKV. Processing typically completes in under 60 seconds.
Download your MKV file
Download your MKV immediately — ready to store multiple audio tracks (e.g. different languages) in one file.
Why Convert AVI to MKV?
AVI (Audio Video Interleave) produces large files, lacks modern streaming support, and has limited codec flexibility. Converting to MKV gives you multi-track and subtitles.
Frequently Asked Questions
Why convert AVI to MKV?
AVI (Audio Video Interleave) produces large files, lacks modern streaming support, and has limited codec flexibility. Converting to MKV gives you store multiple audio tracks (e.g. different languages) in one file.
Will I lose video quality converting AVI to MKV?
Our converter outputs H.264, H.265, or VP9 video at high-quality settings. When re-encoding is required, we use settings that minimise visible artefacts. The resulting MKV file will be visually very close to the original.
What AVI files can I upload?
You can upload AVI files from old camcorders, legacy Windows software, older screen recorders, and DVD rips. Files must be under 100 MB, under 10 minutes in duration, and not exceed 1080p resolution.
What is the maximum file size for AVI to MKV conversion?
The maximum upload size is 100 MB and the maximum video duration is 10 minutes. Resolution is capped at 1920×1080 (1080p).
Is my AVI file kept private?
Yes. Files are processed privately and automatically deleted within 60 minutes. We never store, sell, or analyse your content.
AVI & MKV Format Guides
Understand the formats you're converting between — specs, pros, cons, and use cases.
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