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MKV to WEBM Converter
Convert MKV files to WEBM in seconds, free and unlimited.
🔒 Files are processed on your device. Nothing is uploaded.
How to convert MKV to WEBM
- Click Choose files or drop your MKV files into the box. You can add several at once.
- Make sure WEBM is selected as the output format.
- Press Convert, then download your WEBM files.
MKV
Matroska container that can hold almost any codec, many audio tracks and subtitles.
WEBM
Open web video format from Google (VP8/VP9 video), playable in all modern browsers.
Video and audio are converted with FFmpeg running inside your browser. Short clips finish in seconds; long or high-resolution videos can take a few minutes because your own device does the work. Open Options to trim, resize or change quality.
Other MKV conversions
- MKV to MP4
- MKV to MOV
- MKV to AVI
- MKV to FLV
- MKV to WMV
- MKV to MPEG
- MKV to 3GP
- MKV to OGV
- MKV to M4V
- MKV to TS
- MKV to GIF
- MKV to MP3
- MKV to WAV
- MKV to OGG
- MKV to OPUS
- MKV to FLAC
- MKV to AAC
- MKV to M4A
- MKV to M4R
- MKV to WMA
- MKV to AC3
- MKV to AIFF
Convert other files to WEBM
- GIF to WEBM
- MP4 to WEBM
- MOV to WEBM
- AVI to WEBM
- FLV to WEBM
- WMV to WEBM
- MPEG to WEBM
- MPG to WEBM
- M4V to WEBM
- 3GP to WEBM
- 3GPP to WEBM
- 3G2 to WEBM
- OGV to WEBM
- TS to WEBM
- MTS to WEBM
- M2TS to WEBM
- VOB to WEBM
- MXF to WEBM
- DV to WEBM
- MOD to WEBM
- RM to WEBM
- RMVB to WEBM
FAQ
Is converting MKV to WEBM free?
Yes. Unlimited conversions, no sign-up, no watermark.
Are my files uploaded to a server?
No. FieldConvert processes files inside your browser, so your MKV files never leave your device. That makes it private and fast, because there is no upload or download wait.
Is there a file size limit?
Only your device's memory. Files up to about 2 GB work in most desktop browsers.