Video Compressor — Reduce File Size for Any Platform
Free all-in-one video compressor. Reduce file size for WhatsApp, Discord, Telegram, Instagram, TikTok, YouTube, Email — choose from 16 platform presets or set your exact target size. Smart auto mode, custom CRF, codec, resolution and FPS controls. Compare before and after. No uploads, no watermarks — 100% private browser processing.
Shrink MP4, WebM, MOV files for WhatsApp, Discord, Instagram, Email and more
Drop video here or browse
Up to 1 GB. MP4, WebM, MOV, AVI, MKV.
Features
How to Compress a Video
- Upload your video. Drag and drop or select a video file (MP4, WebM, MOV, AVI, MKV). Supports up to 1 GB.
- Choose compression mode. Use Quick for smart auto-optimization, Target Size for exact file size, Platform for social media presets, or Custom for full manual control.
- Review the estimation. Check the live size estimation showing original vs. compressed size and reduction percentage before starting.
- Compress and download. Hit Compress Video, watch the progress with ETA, then download your smaller file. Processing happens entirely on your device.
Frequently Asked Questions
How does the video compressor work?
The tool uses FFmpeg WebAssembly to process video directly in your browser. It re-encodes the video with optimized settings (codec, CRF, resolution, bitrate) to achieve smaller file sizes while maintaining visual quality. No data is sent to any server.
What is the maximum file size?
You can upload videos up to 1 GB. Files over 500 MB may process slower depending on your device. All processing happens in your browser, so performance depends on your computer's memory and processor speed.
Will compression reduce video quality?
Some quality loss is inherent in compression, but with smart settings (CRF 20-25), the difference is barely noticeable. Quick mode automatically balances size and quality. You can see before/after comparison in the results.
Can I compress video for WhatsApp/Discord?
Yes! Use the Platform mode with 16 presets optimized for WhatsApp (16 MB), Discord Free (8 MB), Discord Nitro (50 MB), Instagram, TikTok, YouTube, Email, and more. Each preset adjusts resolution, FPS, and bitrate to fit the platform's limits.
What codecs are supported?
H.264 (MP4) for maximum compatibility and VP9 (WebM) for better compression at the same quality. H.265/HEVC is not available in browser-based processing. VP9 offers ~20% better compression than H.264 but encodes significantly slower.
Can I trim the video before compressing?
Yes. In Custom mode, you can set start and end times to trim your video before compression. This is useful for removing unwanted parts and further reducing file size without a separate tool.
