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MP4 to WEBM Converter
Convert MP4 files to WEBM in seconds, free and unlimited.
🔒 Files are processed on your device. Nothing is uploaded.
How to convert MP4 to WEBM
- Click Choose files or drop your MP4 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.
MP4
MPEG-4 video, the most widely supported video format on phones, browsers and TVs.
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 MP4 conversions
- MP4 to MKV
- MP4 to MOV
- MP4 to AVI
- MP4 to FLV
- MP4 to WMV
- MP4 to MPEG
- MP4 to 3GP
- MP4 to OGV
- MP4 to M4V
- MP4 to TS
- MP4 to GIF
- MP4 to MP3
- MP4 to WAV
- MP4 to OGG
- MP4 to OPUS
- MP4 to FLAC
- MP4 to AAC
- MP4 to M4A
- MP4 to M4R
- MP4 to WMA
- MP4 to AC3
- MP4 to AIFF
Convert other files to WEBM
- GIF to WEBM
- MKV 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 MP4 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 MP4 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.