Video Compressor
Compress MP4, MOV and M4V videos in bulk — shrink clips for sharing and upload, free and right in your browser.
Drop a video here
or click to choose a file
Smaller videos
Slim down a hefty clip fast
Use this free video compressor to reduce video size by re-encoding each clip to an efficient H.264 MP4 at the quality you choose and scaling it to fit — make a video smaller for sharing, or compress a video for email when a recording won't attach. Drop in one clip or a whole batch, compress MP4, MOV and M4V files online free, and reduce the video file size online with the before-and-after saving shown for every file.
- Bulk-compress many videos at once, then download them as a zip
- Choose a quality level — smaller file or higher fidelity
- Re-encodes to a widely-compatible H.264 MP4
- 100% client-side — your video never leaves your device
Three quick steps
Make a big recording easy to share
Trimming a clip down to size is a drag-and-drop job, with a clear before-and-after for every file.
- 1
Drop in one video or a whole batch of MP4, MOV and M4V files — they're read straight in your browser, ready to compress.
- 2
Pick a preset, or open Advanced to set quality and max resolution per clip — an approximate output size is shown before you commit.
- 3
Press Compress (one file or the whole batch); the encoder downloads once, then download the smaller videos individually or as a single zip.
Common needs
When a video is simply too big
Oversized clips bounce off attachment limits and crawl when uploading — these are the moments shrinking them pays off.
Getting a phone recording under an email or messaging size limit.
Shrinking footage so it uploads to the web or social media far quicker.
Lightening a batch of clips before sharing them on a slow connection.
The choices
Browser compression vs apps and upload sites
See how reducing video size here compares with desktop encoders like HandBrake and the upload-based shrink-my-video websites.
| Feature | InkyTools | Desktop software | Upload-based sites |
|---|---|---|---|
| Completely free | |||
| Files stay on your device | |||
| No sign-up or account | |||
| Nothing to install | |||
| Works on any device | |||
| No watermarks or limits |
Quick answers
Video compression questions, covered
- How do I compress a video?
- Drop in an MP4, MOV or M4V (or a whole batch), pick a quality level and each clip is re-encoded to a smaller MP4 — then download them one by one or as a single zip.
- Does compressing reduce video quality?
- Re-encoding is lossy, so a smaller file means some loss of detail. Choose a higher quality level to keep clips sharp, or a smaller one for the tiniest file — you can see the before and after size for every video.
- Why does it download something the first time?
- The video encoder (ffmpeg) runs as WebAssembly in your browser and downloads once on first use. After that, all compression happens locally with nothing uploaded.
- Is my video uploaded to a server?
- No. Encoding runs entirely in your browser, so your footage never leaves your device.
Local only
Footage is compressed on your machine
Every clip is re-encoded inside your browser — the encoder downloads once, then nothing is uploaded — so even private recordings stay on your own device while you shrink them.
- Nothing uploaded
- Works offline
- No sign-up, any device
Video Compressor: free, private and browser-based
InkyTools is a free video compressor that lets you compress video online free in your browser. Pick a quality level to reduce video size, make a video smaller, and compress a video for email when a clip is too big to send — it's the quick way to reduce video file size online and compress MP4, MOV and M4V files in bulk.
Each clip is re-encoded to an efficient H.264 MP4 with the before-and-after saving shown, so you can shrink MP4 file size and know exactly what you're getting. As a video size reducer it runs entirely on your device — the encoder downloads once, then nothing is uploaded.