ALPHACUT iconALPHACUT logo
webmmp4

Convert WebM to MP4, Free Online Converter

When WebM files won't open, convert them to MP4 for playback anywhere.

Your files are not uploaded to our server. All processing happens on your computer.

Drag and drop your WebM file here or click to upload

WebM files supported

How do WebM and MP4 differ?

WebM: Format designed for web browsers

WebM is commonly used for Chrome screen recordings and on websites. While it works well in browsers, it often won't open in smartphone galleries or common messaging apps.

MP4: Plays instantly on any device

MP4 is a format that plays on virtually all devices and apps, including smartphones, PCs, and TVs. It's the most versatile choice for sharing or storing files.

When screen recording with Chrome or OBS, files are often saved as WebM. To share these files via messaging apps or open them in video editing software, MP4 conversion is necessary.

Screen recordings can contain sensitive information

Rest assured, even screen recordings containing passwords, emails, or personal information are processed entirely within your browser and are never uploaded to our servers.

Short recordings are quick, long ones are stable

Screen recordings lasting a few minutes finish quickly, and even long recordings over an hour are converted stably.

Completely Free. No Limits.

There are no limits on the number of conversions or file size.

Retain screen recording clarity

We convert WebM video and audio to MP4 while preserving the original quality as much as possible. Fine details like text and code remain clear.

FAQ

Can I convert Chrome screen recording files?

Yes, all WebM files are supported, including Chrome screen recordings, OBS Studio recordings, and WebM files downloaded from websites.

Does conversion reduce screen recording quality?

We strive to maintain the original quality as much as possible. Fine details like text and UI remain clear.

Can I convert OBS recording files?

Yes, files recorded in WebM with OBS Studio can be converted to MP4 without any issues.

Can I import the converted MP4 into editing software?

Yes, MP4 can be directly imported into almost all video editing software. While WebM might not open in some programs, MP4 is compatible everywhere.

Are video files uploaded to a server?

No. The entire conversion process is handled solely within your browser. Files are not sent externally.

Turn your recorded videos into highlight Shorts

AI automatically finds key moments from screen recordings, lectures, and meeting videos to create short clips.

Free WebM to MP4 Converter | Convert WebM to MP4 Online - Alphacut