Video
Compress, shrink and convert videos in your browser — nothing is uploaded
Make a video small enough to send, post or store without handing it to a server. Pick a target size for Discord, KakaoTalk or email, or lower the resolution, frame rate or bitrate yourself; the sound is copied unchanged unless you ask otherwise. Your browser’s own hardware encoder does the work, so a phone clip takes seconds and a long 1080p file stays on your computer from start to finish. MOV, WebM and MKV become MP4 along the way, and you see the resulting size, resolution and bitrate before you keep the file.
Shrink MP4, MOV, MKV and WebM videos in your browser: pick a quality or an exact target size, or lower the resolution and fps. No upload.
Make MP4 files smaller in your browser: three quality levels with a live size estimate, or an exact MB target. The result is still an MP4.
Fit any clip under Discord's upload limit: 20 MB free (raised Aug 2026), 50 MB Nitro Basic, 500 MB Nitro. Size is checked after encoding. No upload.
Convert MOV to MP4 by rewrapping, not re-encoding: same quality, done in seconds even for GB files. Or choose H.264 for maximum compatibility.
Lower a video's frame rate to 30, 24 or 15 fps by timestamp, so length and audio sync stay exact even for variable-frame-rate phone clips.
Lower video resolution to 1080p, 720p, 480p or 360p, measured on the short side so vertical phone videos stay sharp and upright. Never upscales.
Turn WebM screen recordings and downloads into H.264 MP4 that plays everywhere. Handles files without a duration and keeps the sound. No upload.
Rewrap MKV as MP4 in seconds when the video is H.264 or HEVC; other codecs are converted to H.264, and the sound to AAC when needed. No upload.
Shrink a video to attach to email: about 18 MB for Gmail's 25 MB and 14 MB for Outlook's 20 MB, since attachments grow by a third when sent.
Fit long videos under KakaoTalk's 300 MB per-file limit, or make them smaller to send faster. Runs in your browser; nothing is uploaded.
Detect and blur, pixelate or black out every face in an MP4 in your browser. Review flagged moments, add regions by hand, keep the original sound. No upload.
Put a mosaic over every face in an MP4 automatically, in your browser. Choose the block size, add regions by hand, keep the sound, download the MP4. No upload.
Cover every face in an MP4 with an opaque shape that cannot be reversed, in your browser. Automatic detection plus hand-drawn regions, sound kept. No upload.