Keep the moment. Lose the extra megabytes.
Trim a clip and compress it to MP4 video or MP3 audio directly in your browser.
Make it yours
Maximum input: 150 MB. Large files can exceed mobile memory limits.
Preview & results
How to use it
- 1Add your audio or video
Choose a file from your device. Nothing is uploaded.
- 2Trim and set a target
Pick start and end times, an approximate target size and a maximum height for video.
- 3Export MP4 or MP3
Video exports as H.264/AAC MP4; audio-only exports as MP3.
Good to know
The engine downloads once
About 30 MB of processing code loads the first time, then stays cached.
Encoding takes time
Everything runs on your own device, so a long clip can take several minutes and will be slower on a phone.
Target size is an estimate
The encoder aims for your target; check the real output before attaching it anywhere.
Email adds about a third
Attachment encoding inflates files, so leave headroom under a mailbox limit.
Common uses
- Getting a video under an email or chat attachment limit
- Cutting a clip out of a long recording
- Turning a video into an MP3 for listening
- Shrinking a screen recording before sharing
- Trimming silence off the start of audio
Questions
Is my video uploaded to a server?
No. The processing engine runs in your browser and your media never leaves the device.
Why is the first run slow?
The encoder itself has to download, about 30 MB. Later runs reuse it.
How small can I make a video?
Lowering the maximum height helps most, followed by trimming length. Very low targets will visibly soften the picture.
Which formats can I export?
MP4 video with H.264 and AAC, or MP3 audio.
Good to know
The processing engine downloads on first use (about 30 MB); your media is not uploaded. Encoding may take several minutes. Target size is an estimate, not a promise: check the actual result before attaching it. Email encoding can add roughly one-third to attachment size. Unsupported or protected media may fail.