🎬 .MP4 .WEBM

Convert MP4 to WEBM
Online — Free

Convert your MP4 (Video) files to WebM (Video) format online for free with FileShiftr. Fast, secure, and reliable file conversion right in your browser. No software to install.

Premium feature — $9/month

Convert MP4 to WEBM Now Browse All Conversions

🎬

What is MP4 (Video)?

.mp4 format

MP4 is the most widely supported video format, compatible with all devices and browsers.

What is WebM (Video)?

.webm format

WebM is an open video format optimized for web streaming and HTML5 video.

How to Convert MP4 to WEBM

Three simple steps. No software to install, no registration required for basic conversions.

Upload Your File

Drag and drop your .mp4 file or click to browse. Max file size: 1 MB (free) or 3 MB (premium).

Select WEBM Format

Choose WEBM as the output format. The converter will process your file automatically.

Download Result

Your converted .webm file is ready in seconds. Click download and you're done.

Why Use FileShiftr for MP4 to WEBM?

Lightning Fast

Most conversions complete in seconds, not minutes.

Secure & Private

Your files are processed securely and automatically deleted after conversion.

Works Everywhere

No software to install. Convert files from any device with a web browser.

REST API Available

Automate conversions with our developer-friendly API. Perfect for AI agents and workflows.

When to Convert MP4 to WEBM

Common use cases for MP4 (Video) to WebM (Video) conversion.

Convert MP4 (Video) files when you need WebM (Video) output.

Share files with others who need a different format.

Prepare files for tools or platforms that require a specific format.

Automate with the REST API

Convert MP4 to WEBM programmatically with a single API call.

terminal

curl -X POST https://fileshiftr.io/api/v1/convert/ \
  -H "X-API-Key: cvt_your_key" \
  -F "file=@input.mp4" \
  -F "output_format=webm"

Frequently Asked Questions

How do I convert MP4 (Video) to WebM (Video)?

Click the "Convert MP4 to WEBM Now" button above, upload your MP4 (Video) file, and download the converted WebM (Video) file. The entire process takes just seconds.

Is the MP4 (Video) to WebM (Video) conversion free?

The MP4 (Video) to WebM (Video) conversion requires a Premium subscription ($9/month). Premium includes higher file size limits and unlimited daily conversions.

Are my files kept after conversion?

No. Your uploaded files and converted output are automatically deleted after processing. We do not store or share your data.

Can I automate this conversion via API?

Absolutely. FileShiftr provides a REST API that lets you convert files programmatically. Sign up for a free API key and send a POST request to /api/v1/convert/ with your file.

Convert MP4 to WEBM Online — Free