Video Compressor
Compress any video online for free — no sign-up, no uploads, nothing to install. Pick your quality level, set the output size, and your browser handles the rest. Everything happens right here, so your video never leaves your device.
Drop your video here, or click to choose a file
MP4, WebM, MOV — up to 500 MB
How It Works
This free online video compressor processes your file entirely in your browser — no upload is ever sent to a server. On Chrome and Edge it uses the WebCodecs API for fast, hardware-accelerated compression; on Firefox and Safari it falls back to the MediaRecorder API.
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1. Choose your video
Click the upload area or drag and drop any MP4, WebM, MOV, or OGG file up to 500 MB. It loads instantly into the tool — nothing leaves your computer.
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2. Pick your compression settings
Choose Low, Medium, or High quality. Use the width slider to reduce the resolution — a smaller output size cuts file size dramatically. Lower the frame rate for an even smaller result, or keep it at 30 fps to preserve smooth motion.
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3. Your browser compresses the video
Hit Compress Video and your browser re-encodes the video locally. On Chrome and Edge the WebCodecs API processes frames at up to 16× speed, so most videos finish in seconds. On Firefox and Safari the MediaRecorder API captures frames at real-time speed instead. No upload — just local processing.
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4. See the savings and download
Once done, you'll see the original size, the compressed size, and how much space you saved. Click Download Compressed Video and it goes straight to your device.
Why users love this tool
- Your video never leaves your device — everything is processed in your browser, not on our servers, so there is nothing to intercept or store.
- Fast compression, no upload — on Chrome and Edge the WebCodecs API processes your video at up to 16× speed locally, so most clips finish in seconds.
- Control the output size — choose from three quality presets and adjust resolution and frame rate to hit exactly the file size you need.
- Works on any device — phone, tablet, or desktop, no installation required. Works on any modern browser.
- Completely free — no account, no watermarks, no limits.
Frequently Asked Questions
Is my video uploaded to a server?
No. All processing happens locally in your browser using the HTML5 Canvas and MediaRecorder APIs. Your video is never sent to or stored on any server.
What video formats are supported?
MP4, WebM, MOV, and OGG/OGV files up to 500 MB are supported. MP4 (H.264) works on all modern browsers. WebM and OGG work on Chrome, Firefox, and Edge. MOV support depends on your operating system and browser.
What format will the compressed video be saved as?
On Chrome and Edge the tool uses the WebCodecs API to produce an MP4 file (H.264 video, AAC audio) — the most compatible format for sharing. On Firefox and Safari it falls back to the MediaRecorder API, outputting MP4 where supported or WebM (VP9 or VP8) otherwise.
How long does compression take?
On Chrome and Edge the tool uses the WebCodecs API and processes video at up to 16× playback speed — a 2-minute clip typically finishes in seconds. On Firefox and Safari it falls back to the MediaRecorder API, which captures frames in real time and takes roughly as long as the video's duration. Either way, nothing is uploaded.
How do I get the smallest possible file?
Select the Low quality preset, reduce the output width (try 480px or 720px), and set the frame rate to 15–24 fps. Each change reduces the number of pixels and frames in the output, giving a significantly smaller file.
Is this tool really free?
Yes, completely free. No account required, no watermarks, and no hidden fees.