WebM Compressor to Share Videos Easily
Compress WebM files online with no installs. Reduce video size in your browser, with no upload, no queue, and no file size limits. Shrink your clips instantly, save your storage space, and keep your video looking clean and sharp.
Over 1 million creators use Flixier every day including brands like:
Reduce Video Size and Edit Files Instantly
Convert Videos Safely
Your videos never leave your computer during compression. Enjoy a fast video compressor that handles everything locally in your browser window, protecting your personal data while saving you from slow internet speeds.
Shrink Large Formats
Make your large videos small enough to share over email or Discord without losing clarity. Use our presets to compress MP4 clips or shrink down raw footage without compromising on the original quality.
Fix Playback Limits
Switch from web-only formats to universally accepted video files in seconds. Easily convert WebM to MP4, making sure your custom clips play perfectly on any device.
Adjust Clips Easily
Click Edit in Flixier to access advanced creative tools after you finish. Open the main editing suite to edit WebM online or compress MKV files to cut out mistakes, mix in background audio tracks, or generate captions.
How to compress WEBM for Free:
Who this is for

Marketers
Fix client’s file size issues on the spot without downloading complicated tools or software. Swap file sizes fast, add quick text overlays, and export clean promotional clips.
See How It WorksEducators

Business Owners

Social Creators

Still have questions?
We got you!
How do I compress a WebM file for free?
To compress a WebM file for free, just open Flixier in your browser and drop your file into the compressor tool. Choose a size preset, let the tool process the video locally on your computer, and save the smaller file straight to your device.
Can I compress VP9 WebM video?
Yes. Our online tool fully supports both VP8 and VP9 WebM video types. You can drop these files into your browser window to lower their file size instantly without experiencing any format errors or compatibility issues.
Is there a file size limit for WebM compression?
No. Because our tool runs directly inside your browser using your computer's power, there are no file size limits. You can compress large video files quickly without encountering slow internet upload caps.
Does my WebM get uploaded to a server?
No, your files never leave your computer during compression. Everything is processed locally in your browser. Your video only uploads to our secure cloud servers if you choose to click continue and open it in our full editor.
Can I convert WebM to MP4 instead?
Yes. Our tool lets you change your file type directly to MP4, which naturally lowers the file size while making your video compatible with almost every modern phone, tablet, and website.
