Video too big to send ? Shrink it to fit.
Compress to WhatsApp 16MB / Discord 10MB / email 25MB in one click — plus video to MP3, MP4 to GIF and audio conversion. It all runs in your browser with ffmpeg: never uploaded, no watermark.
Drop it in, shrink to fit
Free · localTarget size
Derives a bitrate from target size ÷ duration and re-encodes; best for short clips.
- 6
- Converters
- 100%
- Local
- 0
- Uploads
- 0
- Watermark
Is compressing video in the browser safe? Is it slow?
ConvertMeow runs on ffmpeg.wasm — a video engine that runs inside your browser. Your video is processed entirely on this computer and never uploaded to any server, so even private screen recordings and home videos stay yours. The trade-off is that it encodes on your CPU, so it's slower than cloud tools; the upside is privacy, no watermark, no cap and no sign-up. Short clips (seconds to a couple of minutes) work best; for files over ~500MB–1GB, a desktop tool like HandBrake is more reliable.
Compress for where you're sending.
Shrink it just enoughA litter of converters.
See all →Compress video to a size
Shrink a video to fit WhatsApp, Discord or email — pick a preset or a custom MB target.
Video to MP3
Pull just the sound out of a video and save it as MP3 — lectures, podcasts, background music.
MP4 to GIF
Turn a short clip into a shareable GIF — two-pass palette for cleaner colors.
Audio converter
Convert between MP3, WAV, M4A, FLAC and OGG — lossless-to-lossless when you need it.
Trim video
Cut off the head and tail, keep the middle — no re-encode, near-instant, no quality loss.
MP4 ↔ MOV
Swap between MP4 and MOV — stream copy, no re-encode, near-instant, no quality loss.
Text to speech
Turn text into a natural voice — generate a downloadable WAV locally, with multiple voices, free and unlimited.
Transcribe / subtitles
Turn audio or video into text and export timestamped SRT / VTT subtitles — all local, never uploaded.