Phone videos are recorded at high bitrates, which makes them far too big for email, messaging apps and many upload forms. This tool re-encodes your video in the browser at a smaller resolution and a leaner bitrate, producing a standard MP4 that is much easier to send while still looking good on phones and laptops.
What the Compressor Changes
Two things decide a video file size: how many pixels each frame has, and how much data is spent on each second. The compressor lets you scale the video down (for example from 1080p to 720p or 480p) and applies a quality-based bitrate, then re-encodes with the widely compatible H.264 codec. The result plays everywhere MP4 plays. Very large reductions will soften fine detail — that trade-off is unavoidable, and the preview settings let you pick where to land.
How to Reduce a Video File Size
- Upload the video you want to compress.
- Wait for the in-browser media engine to load on first use.
- Pick a target resolution and quality level.
- Start the compression and follow the progress bar.
- Compare the old and new file sizes, then download the MP4.
Everyday Reasons to Compress
- Sending videos through apps with strict attachment limits.
- Uploading homework, auditions and applications to portals.
- Saving storage on your phone or cloud drive.
- Publishing web videos that load quickly for visitors.
Frequently Asked Questions
How long does compression take?
Re-encoding runs on your device, so speed depends on the video length and your hardware. Short clips finish quickly; long 4K videos take noticeably longer.
Will the smaller video still look good?
At a sensible setting, yes for normal viewing. Dropping one resolution step (1080p to 720p) usually halves the size with little visible difference on small screens.
Is my video uploaded for compression?
No. The encoder runs in your browser with WebAssembly; your video stays on your device.