Reduce your MP4 file size by 40-80% without losing quality. Perfect for email, WhatsApp, Discord, and social media. Free, fast, and no registration required.
Drop your MP4 file here to compress it
Maximum file size: 500MB
Drag and drop your MP4 file or click to browse. We accept files up to 500MB — from phone recordings to professional footage.
Our FFmpeg engine analyzes your video and applies optimized H.264 encoding that reduces file size by 40-80% while keeping quality virtually identical.
Preview the compressed video in your browser and download it. The output is a compact MP4 that plays on every device and platform.
MP4 files from modern phones and cameras are massive. A single minute of 4K video can be 300-500MB. Even 1080p recordings from screen capture software, drones, and DSLRs are often needlessly large because they use inefficient encoding settings.
Our MP4 compressor re-encodes your video with professionally optimized H.264 settings — the same codec used by YouTube, Netflix, and every streaming platform. The result is a dramatically smaller file that looks virtually identical to the original, uploads faster, and plays smoothly everywhere.
WhatsApp limits videos to 16MB. Compress your MP4 so it sends instantly. Works for Telegram, Signal, and iMessage too.
Discord free users can only upload 25MB. Shrink your gameplay clips, screen recordings, and memes to fit.
Most email providers cap attachments at 25MB. Compress MP4 presentations, demos, and recordings so they actually send.
Smaller MP4 files upload faster to Instagram, TikTok, Twitter, and YouTube. They also buffer less for your viewers.
MP4 compression works by removing redundant visual information that the human eye can't perceive. The H.264 codec uses "inter-frame prediction" — instead of storing every pixel of every frame, it encodes only the differences between frames. Static backgrounds, repeating patterns, and subtle color gradients are compressed aggressively while fine details in motion are preserved.
Our optimizer fine-tunes the encoding parameters — bitrate, CRF value, keyframe interval, and profile level — to find the ideal balance between file size and visual quality for your specific video content.
Actual savings depend on your source video, but here are typical results from common MP4 sources:
Files are processed securely and automatically deleted after 24 hours
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Process videos at scale with our FFmpeg API. Get $1 free credit on signup and generate 50 videos for just $5.