Video Compressor
Shrink a video's file size for free, right in your browser — great for email or Slack attachment limits. No signup, no upload.
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A video that's too large for an email attachment or a Slack upload usually just needs a smaller bitrate, not a shorter length. This compressor re-encodes your video at one of three presets, trading a small amount of quality for a meaningfully smaller file — all without installing anything or waiting on a server-side upload.
How it works
- 1Choose a video file — it opens directly in your browser.
- 2Pick a compression preset: Smaller file, Balanced, or Higher quality.
- 3Click Compress and download a smaller version of your video.
Why use this tool
- Three presets — Smaller file, Balanced, and Higher quality — instead of a confusing raw bitrate slider.
- See your original and compressed file sizes side by side before downloading.
- Runs entirely in your browser, so a large source file never has to leave your device.
Frequently asked questions
Is this tool free to use?
Yes — completely free, with no signup, no account, and no limit on how many times you can use it.
Is my file uploaded to your servers?
No. Everything runs locally in your browser using your device's own processing power — your file is never uploaded, and we never see it.
How much smaller will my video get?
It depends on your source video's original bitrate and the preset you choose — Smaller file typically gives the biggest reduction, useful for staying under email or Slack attachment limits.
Will compressing hurt video quality?
Some quality is traded for size, as with any compression. The Balanced and Higher quality presets keep the difference minimal for typical screen recordings and everyday video.
What's the difference between the three presets?
Smaller file targets the lowest possible size, useful for strict attachment limits. Balanced is a good default for most recordings. Higher quality keeps more visual detail at the cost of a larger file.
Related resources
Written by the ScreenLaps team · Last updated August 2026
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