Compress Video
Free online video compression tool. Reduce video file size, compress MP4, WebM videos. Optimize video quality and size. Fast video compression without quality loss.
About Video Compression Tool
This online tool allows you to compress video files directly in your browser. Reduce video file size while maintaining good quality. Perfect for sharing videos online, uploading to social media, or saving storage space. All processing happens locally for complete privacy.
What video formats are supported?
Input formats: MP4, WebM, MOV, AVI, MKV, and other common video formats. Output formats: MP4 (H.264) and WebM (VP9).
How much can I reduce the file size?
Size reduction depends on the original video and compression settings. Typically 40-80% reduction is achievable. Maximum Compression preset can reduce size by 85-90% but with noticeable quality loss.
Which preset should I choose?
Balanced preset is recommended for most users - it provides good quality with 50-70% size reduction. Web Optimized is great for online sharing. High Quality maintains excellent quality with moderate compression.
Will compression affect video quality?
Yes, compression reduces file size by removing redundant data and reducing quality slightly. However, with the right settings, quality loss is minimal and often imperceptible. Choose higher quality presets for better results.
What is video bitrate?
Bitrate controls how much data is used per second of video. Higher bitrate = better quality but larger file. Lower bitrate = smaller file but lower quality. Auto setting chooses optimal bitrate based on resolution.
Should I reduce video resolution?
Reducing resolution significantly decreases file size. For web sharing, 1280x720 (HD) is usually sufficient. Keep original resolution only if you need maximum quality.
What is the file size limit?
Maximum file size is 200MB. This ensures smooth processing in your browser. For larger videos, consider using desktop software or splitting the video.
Is my video file safe?
Absolutely! All compression happens directly in your browser using FFmpeg.wasm (WebAssembly). Your video file is never uploaded to any server. Everything stays private on your device.
How long does compression take?
Compression time depends on video length, resolution, and compression settings. Typically 1-3 minutes for a 5-minute video. Higher quality settings take longer.
Can I compress multiple videos?
Currently, you can compress one video at a time. After compression completes, you can reset and compress another video.