Convert WebM to MP4

Quickly convert WebM files to MP4

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or drag and drop your file here
* Files are automatically deleted after 24 hours

Convert files up to 100 MB for free

How to convert WebM to MP4 online

  • 1 Upload your WebM by dragging and dropping it or clicking the upload area.
  • 2 Our converter automatically processes your file and creates an MP4.
  • 3 Click the download button to save the MP4 to your device.

WebM to MP4: Frequently Asked Questions

  • Why convert WebM to MP4?

    WebM is great for the web, but MP4 is the most widely supported format across devices, operating systems, and editing tools. Converting to MP4 ensures smooth playback on Apple devices, legacy hardware, presentation software, and pro editors. It’s ideal for sharing with mixed audiences, embedding in slides, or editing content that originated on the web.

  • Will video quality change when converting WebM to MP4?

    Quality differences are minimal with proper settings. Our converter prioritizes visual fidelity while optimizing file size. Choose “Preserve Quality” to maintain the original look when possible, or “Smaller File” to reduce size with perceptually similar quality. Your resulting MP4 is designed to look nearly identical to the WebM source.

  • How do you handle WebM transparency (alpha)?

    WebM can include alpha transparency used in overlays and animations. We offer two options: “Preserve Alpha” for workflows and apps that support transparent MP4 variants, and “Add Background” to composite transparency over a solid color or image for apps that don’t support alpha video.

  • What presets work best for different WebM sources?

    Use presets tailored to your source: “YouTube/Web Download,” “Web Animation/Motion Graphics,” “Screen Recording,” and “VP9 High Quality.” Our adaptive engine analyzes resolution, bitrate, and frame rate to pick optimal settings for compatibility and clarity.

  • Can I convert multiple WebM files at once?

    Yes. Batch conversion lets you queue many files, apply consistent settings, and convert them automatically. Keep outputs uniform in resolution, frame rate, and quality, receive completion notifications, and review logs for any files that need attention.

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