Finally, a File Converter Your IT Department Will Approve.

90% Browser-Based
No upload needed
Max privacy
EU Servers Only
Made in Austria
GDPR compliant
Auto-Deletion
Files deleted in 5 min
Zero retention
WEBM
MKV

Convert WEBM to MKV

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What is WEBM?

WebM

WebM is a video format. WebM is a modern, open-source video format designed for the web. Provides excellent compression and quality for online video.

  • Category: video
  • MIME Type: video/webm
  • WebM is a modern, open-source video format designed for the web. Provides excellent compression and quality for online video.

What is MKV?

MKV

MKV is a video format. MKV is a flexible, open-source video container that can hold unlimited video, audio, and subtitle tracks in one file.

  • Category: video
  • MIME Type: video/x-matroska
  • MKV is a flexible, open-source video container that can hold unlimited video, audio, and subtitle tracks in one file.

Why Convert WEBM to MKV?

Platform Compatibility

Convert to formats supported by your target platform or device

File Size Reduction

Compress videos for easier uploading and sharing

Quality Balance

Optimize compression settings for your quality needs

Editing Workflow

Use formats compatible with your video editing software

⚠️ Important: Converting WEBM to MKV changes the file format while preserving content. Results depend on format compatibility and content type.

How to Convert WEBM to MKV

  1. Click the "Start Converting Now" button above
  2. Upload your WEBM file or drag & drop it
  3. Select MKV as the output format (pre-selected for you)
  4. Click "Convert" and download your MKV file

Features

  • 100% Free Conversion
  • No Registration Required
  • Fast Processing
  • Cross-Platform Compatible
  • Secure Server Processing
  • Auto-Delete After 5 Minutes
  • Batch Processing Available
  • Mobile Friendly

Frequently Asked Questions

Can I convert multiple WEBM files at once?

Yes! Free users can convert up to 3 files per batch (5 conversions/day total). Premium users get batch conversion of up to 20 files with automatic ZIP download. Simply select multiple files when uploading.

Is my data safe during conversion?

Yes! Files are processed on GDPR-compliant European servers with automatic deletion after 5 minutes. We don't store, analyze, or share your files. The conversion is secure and private.

What are the conversion limits?

Free: 5 conversions per day, max 100MB per file, up to 3 files per batch. Premium: Unlimited conversions, max 500MB per file, up to 20 files per batch with ZIP download.

How long does conversion take?

Most conversions complete in seconds. Small files (under 10MB) typically convert in 1-5 seconds. Larger files or complex formats may take 10-30 seconds. Browser-based conversions are usually faster than server-processed ones.

Do I need to install any software?

No! Everything works directly in your web browser. No downloads, no installations, no plugins required. Just upload your file and convert. Works on Windows, Mac, Linux, and mobile devices.

Ready to Convert?

Start converting your WEBM files to MKV now - it's fast, free, and secure!

↑ Convert WEBM to MKV Now