Convert MP4 to WebM Online in Seconds
- Step 1: Pick or drop your MP4 file above.
- Step 2: Our cloud engine converts it to WebM automatically.
- Step 3: Hit Download to save the WebM — share anywhere online.

Convert MP4 to WebM
Upload any clip — even gigabyte-sized 4K files — and get a web-friendly WebM in seconds.

Optimise for the Web
WebM (VP9 + Opus) streams smoothly in modern browsers and keeps quality high at lower bitrates.

Unlimited & Free
No caps on length, file size or daily usage. We never charge or watermark.

MP4 vs WebM
MP4 is universal, but heavier. WebM is open-source, royalty-free and tuned for HTML5 video. Convert to cut bandwidth while matching quality.

Why Converter App?
A decade of file-conversion expertise plus a clean interface — the video is ready before you finish your coffee.

Privacy Built-In
Your videos auto-delete from our servers shortly after conversion; only you can download them.
MP4 to WEBM converter quality rating
4.9 /
5 (based on
277 reviews
)
You can submit your review after uploading and editing at least one file!