WebM to WebM Converter
Re-encode and optimize WebM video files. Adjust quality, resolution, and bitrate. Free, no watermarks.
Advanced Options - Our defaults are optimized for the best results. We recommend you keeping the defaults unless you have a specific need.
Reset to defaults
Need help?How to Re-encode WebM Files Online
- Upload Your WebM File: Click "+ Add Files" to select WebM files from your computer, Google Drive, or Dropbox.
- Adjust Settings: Change quality, resolution, bitrate, or codec settings in Advanced Options.
- Download Optimized WebM: Click "Convert" and download your re-encoded WebM file.
Why Re-encode WebM?
Reduce File Size
Re-encode at a lower bitrate or resolution to reduce file size while staying in WebM format. Useful for meeting upload limits (Discord 8MB) or reducing bandwidth.
Change Codec
Upgrade from VP8 to VP9 for better compression at the same quality, or adjust audio codec settings.
Adjust Resolution
Downscale 4K or 1080p WebM to 720p or 480p for web use where full resolution isn't needed.
Frequently Asked Questions
Is it free?
Yes. Completely free with no watermarks, no sign-up required, and no file count limits.
Does it work on mobile?
Yes. Works in any modern browser on all devices — no app installation required.