video format

What is a .WEBM file?

WEBM is an open, royalty-free video format built for the web — small files at good quality, widely supported in browsers.

Full name
WebM
Developed by
Google
Released
2010
Extension
.webm
MIME type
video/webm
Transparency
No

How to open a WEBM file

WEBM plays in modern browsers and many desktop players.

What WEBM files are used for

Sharing & social

Clips that play on every platform.

Editing & post

Footage in production pipelines.

Streaming & web

Embedded and hosted playback.

Strengths & limitations

✔ Strengths✖ Limitations
Open / royalty-freeNo transparency support
Excellent compatibility

Tools for this format

Convert, compress and edit — free, in your browser.

Need more than a conversion?

Remove the background from WEBM images, upscale to 4K, or generate new visuals with SharkFoto AI.

Frequently asked questions

WEBM is an open, royalty-free video format built for the web — small files at good quality, widely supported in browsers.

WEBM plays in modern browsers and many desktop players.

WEBM is optimised for its specific use rather than strictly lossless storage.

Use SharkFoto's free tools — upload your WEBM file and convert it to a more convenient format in seconds. It's free, processed securely and never stored.

No — WEBM doesn't store transparency; convert to PNG or WEBP if you need it.