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Convert WebM to MP4 Online — Free WebM toMP4Converter
Convert WebM videos to MP4 format. Perfect for sharing browser recordings and web videos anywhere.
This tool is being improved
Explore other toolsDaily limit reached
Fetching a video from a link can take longer than uploading a file — up to a minute or two for a long video.
Your file is kept — processing resumes automatically.
This limit resets tomorrow. Go Pro to never hit it again, on every tool.
Your file is kept: processing resumes where it stopped.
Your file is kept: processing resumes where it stopped.
One job at a time. Yours finishes, then this one starts.
Drop to upload
Drop your file here
Or use the other entry, it stays available.
MP4, MOV, AVI, MKV, WebM
Free to try · no account required
Free to try · no account required
Drop to upload
Convert to:
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Timings preserved
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Duration
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Free to try · no account required
Free to try · no account required
Quota is based on full video duration. Queued and running tasks are included; the exact balance is checked before transfer.
COMPATIBLE PLATFORMS
Your Hashtags Are Ready!
Hashtags copied to clipboard — paste them in your post!
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Conversion Complete!
Preview below. Download your file whenever you like.
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Translation Complete!
Preview below. Download your file whenever you like. Timecodes are preserved.
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Pick two different languages to start dubbing.
The sample plays in the target language so you can compare before starting.
Keep original voice underneath
Low volume, behind the translated voice.
Your Video Script
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Your video is received and saved. It will start as soon as a machine frees up.
It's ready
This stage works through the video end to end. The percentage will only move once it's done.
This is the longest stage of the job. It is moving, even when the number isn't.
Cancel now? The work already done will be lost and the file will have to be uploaded again.
Get an email the moment it's ready.
Klipa is preparing your preview
Your best clip is being cut and auto-reframed (face tracking). This preparation happens only once — about 30 seconds.
Upgrade to generate your clips with this style, or continue free with the Minimal style.
Burning in the captions…
Klipa is burning your captions into this clip, in the style you chose — identical to the preview. This takes a moment, keep the page open.
The burn failed — nothing was lost, you can retry.
This file is no longer available
Keep your videos between sessions and get free credits for your next exports.
Preparing your logo-free video… The download will start on its own.
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Convert THIS video in full · up to 2 GB / 2 h · one-off
File expired
Relaunch burningClean file, no watermark.
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Monthly limit reached
Your free plan hit its burn limit this month. Your settings are saved — unlock this result or go Pro to burn now.
Subtitle workshop
Your subtitled video is readyFree download stays available below: the videos will carry the Klipa logo in the center and bottom.
We're preparing your logo-free videos…
We couldn't prepare your logo-free videos. Write to us — your purchase is safely recorded.
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Your video is ready
Download the full video, in full quality
Find all your videos, wherever you are
Longer videos and larger files with Pro.
Your original video is still available. Try another tool:
You've used up your 120 minutes
Your downloads have used your allowance, and this video needs more. The Downloads plan opens 100 hours of video per month — enough to stop counting altogether.
- 100 hours per month — 12× your current allowance
- HD and 4K, without paying video by video
- Every platform, no app and no ads
No commitment — cancel in one click, any time.
Convert WebM to MP4 — Share Browser Videos Everywhere
WebM is great for browsers, but useless almost everywhere else. Your phone, TV, social media accounts, and most video editors will not play WebM files. Converting to MP4 gives you a universally compatible video you can share, upload, or edit anywhere. Klipa handles the VP8/VP9-to-H.264 conversion on our servers, so it works even on older devices.
Got a screen recording to share? Convert it here, then compress the MP4 for email-friendly sizes. Need captions on your tutorial? Our AI subtitle generator transcribes and burns in captions automatically.
How to Convert WebM to MP4
Upload Your WebM File
Drag and drop your WebM file — screen recordings, browser exports, or any WebM video up to 2 GB on Pro (500 MB without an account). We support both VP8 and VP9 encoded WebM files.
H.264 MP4 Encoding
Our server converts the VP8/VP9 video stream to H.264 and the Opus/Vorbis audio to AAC, producing a universally compatible MP4 file. Quality settings are optimized to preserve visual fidelity at the smallest possible file size.
Download Universal MP4
Your MP4 plays on every device and platform. Upload to YouTube, share on WhatsApp, import into video editors — it just works. Want to enhance it? Add AI subtitles or compress further for faster sharing.
Why Convert WebM to MP4?
Share Everywhere
WebM only works in browsers. MP4 plays on phones, TVs, and all social platforms.
Quality Preserved
Converts VP8/VP9 to H.264 with optimal quality settings.
Screen Recordings
Perfect for converting Chrome/Firefox screen recordings to shareable MP4.
No Software Needed
Convert directly in your browser. No VLC or third-party software required.
FROM BROWSER TO EVERYWHERE
Screen Recording Sharing
Chrome and Firefox save screen recordings as WebM. Convert to MP4 so you can share tutorials, bug reports, and presentations with anyone — regardless of their device. Add AI subtitles to make screen recordings accessible.
YouTube and Social Uploads
While YouTube technically accepts WebM, MP4 uploads process faster and more reliably across all social platforms. Convert first, then compress to speed up the upload process.
Video Editing Import
Most video editors — Premiere Pro, DaVinci Resolve, iMovie — handle MP4 much better than WebM. Convert your source files before importing for smoother editing. Our converter handles other format needs as well.
Related Tools
WebM to MP4 — FAQ
What is WebM format?
WebM is Google's open video format used mainly by web browsers. It uses VP8/VP9 codecs and is not widely supported outside browsers.
Why convert WebM to MP4?
Most devices, apps, and social platforms don't support WebM. MP4 is the universal standard that works everywhere.
Can I convert screen recordings?
Yes! Chrome and Firefox screen recordings are often saved as WebM. Our tool converts them to MP4 for easy sharing.
Is there quality loss?
Minimal. We use high-quality H.264 encoding that preserves the visual fidelity of your WebM video.
What's the maximum file size?
The limit depends on your plan: 500 MB without an account, more with a free account, up to 2 GB on Pro.
How fast is the conversion?
The time depends on the file size, duration, source codec, and chosen format.
Why do Chrome recordings save as WebM?
Chrome uses WebM as its native recording format because it is open-source and royalty-free. For sharing outside the browser, converting to MP4 with our tool ensures universal playback.
Can I convert WebM with transparency to MP4?
MP4 does not support transparency. If your WebM has an alpha channel, the transparent areas will be rendered as black in the MP4 output. For transparent video, keep the WebM format.
Is the conversion quality as good as the original?
We use high-quality H.264 encoding settings that preserve the visual fidelity of your WebM. Any quality difference is imperceptible to the human eye. For the absolute smallest file, run the result through our compressor.
What Creators Say
WebM to MP4 — Universal Compatibility
Stop being limited by WebM's browser-only playback. Klipa converts your WebM files to universally compatible MP4 quickly — free, online, with no signup required. Pair it with our compressor, AI subtitles, and video converter for all your video format needs.
