Compress WEBM
Free, fast and secure — shrink your WEBM file right in your browser.
WEBM
Shrink your WEBM for easy sharing and upload
Compressing WEBM re-encodes your video at the size you choose, cutting the file down dramatically so it uploads quicker, fits attachment limits and streams smoothly — while keeping it looking sharp.
How to compress WEBM
- 1 Drop your WEBM file into the compressor above.
- 2 Pick a compression level and it is optimised automatically.
- 3 Download your smaller WEBM file instantly.
About WEBM
WEBM
WebM video
WebM is an open, royalty-free format built for the web. It streams efficiently in modern browsers and supports transparency, making it a favourite for HTML5 video.
Strengths
- Optimised for web streaming
- Open and royalty-free
- Supports alpha transparency
Limitations
- Limited support outside browsers
- Not ideal for editing
- Less common on mobile apps
Best for: Embedding fast-loading video on websites and web apps.
Frequently asked questions
Upload your WEBM file above, pick a compression level and it is optimised automatically. When it is ready, download your smaller file — the whole thing takes just a few seconds in your browser.
You choose the balance between size and quality. “Light” keeps the video close to the original, while “Strong” maximises the saving. Even strong compression stays perfectly watchable.
It depends on the file and the level you pick, but savings of 40–80% are common — larger, less-optimised files shrink the most.
Yes. The compressor is free to use, with no watermark and no sign-up required.
Your files are processed securely and are never shared with anyone.