Video Compressor
Reduce video file size — free, instant, and private. Nothing is uploaded.
Drop a video here, or click to browse
MP4, MOV, WebM, MKV, or AVI — up to 2GB
Related tools
Everything you need to compress video fast
Quality slider with live CRF control
Dial in exactly the right balance between file size and visual quality using a standard CRF-based re-encode, the same approach professional encoding tools use.
Optional resolution cap
Cap output at 1080p, 720p, or 480p for an even smaller file. Videos already smaller than your chosen cap are never upscaled.
Before and after size comparison
See the original and compressed file sizes side by side, with a clear percentage badge showing exactly how much space you saved.
Works with your existing format
Drop in MP4, MOV, WebM, MKV, or AVI — no need to convert first. The compressed result is saved as a widely-compatible MP4.
Private by design
Your video never leaves your device. PixelTools runs entirely in your browser using ffmpeg.wasm — zero server uploads, zero data stored.
Three steps to a smaller video
- 1
Upload your video
Drag and drop a video onto the page, or click to browse. Supports MP4, MOV, WebM, MKV, and AVI files up to 2GB.
- 2
Choose quality and resolution
Use the quality slider to balance file size against visual fidelity, and optionally cap the max resolution (1080p, 720p, or 480p) for an even smaller file.
- 3
Download your compressed video
Your video is re-encoded instantly in your browser. Download the result as MP4. Nothing is uploaded to any server — your file stays on your device.
Built for anyone who works with video
Whether you are emailing a clip under a size limit, backing up screen recordings, or prepping a video for social media — PixelTools compresses it in your browser in seconds.
Email and messaging limits
Shrink a video clip below your email provider's or messaging app's attachment size cap without re-recording it.
Faster uploads and backups
Compress screen recordings and camera clips before uploading to cloud storage or a shared drive, saving time and bandwidth.
Social media and content creators
Bring oversized clips down to a manageable size before editing or posting, without giving up noticeable quality.
Students and professionals
Shrink lecture recordings, screen captures, and presentation videos to fit under upload limits for LMS platforms or file-sharing tools.
Frequently asked questions
Is PixelTools video compressor free?
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Yes, completely free with no limits. Compress as many videos as you want, as often as you want. No subscription, no trial, no account required.
Are my videos uploaded to a server?
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No. PixelTools compresses videos entirely in your browser using ffmpeg.wasm. Your files never leave your device — there is no server upload, no cloud processing, and no data stored anywhere.
What video formats can I compress?
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PixelTools accepts MP4, MOV, WebM, MKV, and AVI as input. The compressed output is always saved as MP4 for the widest compatibility across phones, editors, and platforms.
Will compressing reduce my video's quality?
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Some quality loss is inherent to any compression — that is how the file gets smaller. The quality slider lets you choose the tradeoff: higher settings keep more detail, lower settings produce a smaller file. The default balanced setting is a good middle ground for sharing and uploading.
How much smaller will my video get?
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It depends on the source: a lightly-compressed phone recording can often shrink 50-80%, while a video that is already heavily compressed may see a smaller gain. Try a lower quality setting or a smaller max resolution for a bigger reduction.
What is the maximum file size I can compress?
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PixelTools can handle video files up to 2GB. Processing time depends on the video's length and your device's performance, since everything runs locally in your browser.
Does this change my video's format or resolution?
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The output is always MP4. Resolution stays the same unless you pick a max resolution cap — in that case, videos larger than the cap are scaled down, but smaller videos are never upscaled.
How is this different from other online video compressors?
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Most online video compressors upload your file to a server for processing, which is slow for large files and means your video leaves your device. PixelTools compresses everything locally in your browser with no upload and no usage limits.
Compress your video now
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