Video Compressor & Resizer
Reduce video file size by up to 70% while maintaining quality.
Compress Video
Good quality, ~50% compression
Compression complete
Detecting encoder…
Why Use This Compressor?
Private
Everything happens locally in your browser. No uploads. 100% safe.
Fast
Uses your device's GPU and hardware for blazing fast results.
Flexible
Choose from multiple quality presets and resolution options.
No Limits
No watermarks, no file size limits, and free to use.
How to Compress a Video
Select File
Click to choose or drag & drop your video file.
Choose Settings
Select quality, resolution, and other options.
Compress
Click compress and watch the magic happen.
Download
Download your smaller video instantly.
Expected Size Reduction
Results depend on your source video and quality settings.
- High quality: 20–40% smaller (minimal visible difference)
- Medium quality: 40–60% smaller (great balance)
- Low quality: 60–70% smaller (noticeable reduction)
Perfect For
Frequently Asked Questions
How do I compress a video online for free?
Drop your video into the compressor above. Select your preferred quality level and resolution. Click Compress and wait for it to finish. Download your smaller file. No account needed.
Can I compress video without losing quality?
Yes, to a degree. The High quality preset reduces file size by 20–40% with minimal visible quality loss. For larger reductions, some quality trade-off is unavoidable, but Medium works well for most uses.
Are my videos uploaded to a server?
No. Compression happens directly in your browser using WebCodecs technology, with FFmpeg.wasm as a fallback. Your files never leave your device.
What video formats can I compress?
MP4, MOV, AVI, MKV, and WebM input files are supported. Output is MP4 (H.264) when your browser supports it; otherwise WebM may be used.
Why is compression slow on my computer?
Speed depends on hardware acceleration. Chrome and Edge can use your GPU for fast encoding. Without WebCodecs hardware support, the page falls back to slower software encoding via FFmpeg.wasm.
How do I compress a video for email?
Most email services limit attachments to 25MB. Select Medium or Low quality and a lower resolution (720p or 480p). This typically reduces a large video to under 25MB.