# Compress WebP and your original stays put.

> Compress WebP images online in your browser with libwebp. Transparency is kept, the original is never touched, and your file stays on your device.

- URL: https://meetsmally.com/compress-webp/
- Language: en
- Spanish version: https://meetsmally.com/es/comprimir-webp/
- Site map for assistants: https://meetsmally.com/llms.txt

Drop a WebP and get a lighter copy, made in this tab with libwebp. Everything stays on your device.

## How it works

1. **Drag your file in.** Drop your file on the drop zone above, or choose it with the file picker. Nothing is uploaded.
2. **Compare the original and the copy.** Press Preview on the finished row, drag the divider between the original and the copy, and look at it at 100 % or 200 %.
3. **Download the lighter copy.** Download the copy you like. Your original stays untouched, and a copy is offered only when it is lighter.

## What happens to your WebP

Smally re-encodes the WebP once with libwebp at quality 80 with sharp YUV, the same setting the Mac app uses. When your WebP already stores its pixels without loss, it also tries a lossless WebP and keeps the smaller file.

Transparency is kept. A copy is offered only when it is at least 1% lighter than the original; a WebP that was already saved at a low quality often stays as it is, and the row says Already small.

## What stays the same

- Your original. Smally never changes it; the copy downloads as a new file, named like banner-smally.webp.
- Your choice. Press Preview on a finished row to drag a divider between the original and the copy, and download only the ones you like.
- Your privacy. The copy is made in this tab, on your device. Your files never leave this tab.

## What it does not do

- Animated WebP files are left as they are, with a sentence that says why.
- Up to about 24 megapixels on most computers and 12 on a phone or a small computer, 5 files at a time.

## Quick facts

| This kind of file | Smally in the browser | Smally for Mac |
| --- | --- | --- |
| What it takes | WebP, up to about 24 megapixels (about 12 on a phone or a small computer) | WebP, up to 40 megapixels |
| What it makes | One lighter WebP with libwebp at quality 80 and sharp YUV | One lighter WebP copy at the same setting |
| What stays | Transparency; animated WebP files are left as they are | The original; animated images are skipped |
| Per batch | Up to 5 files at a time, 50 MB each, with Download All as one zip | Up to 50 files at a time |
| Where it is processed | In this tab, on your device. Nothing is uploaded | On your Mac. Nothing is uploaded |
| When the original is kept | A copy would not be at least 1% lighter | A copy would not be at least 1% lighter |

## Questions

- **Is my WebP uploaded anywhere?** No. The copy is made in this tab, on your device. Your files never leave this tab.
- **Does it keep the transparent background?** Yes. Transparency is kept in the copy.
- **Can it compress an animated WebP?** Not yet. Animated images are left as they are, and the row says so.
- **Can I turn my JPEG or PNG into a WebP?** The browser version keeps each file in its own format. Smally for Mac can offer As WebP for some PNGs.
- **Why did my WebP stay the same?** A WebP that is already small or already saved at a low quality often cannot get at least 1% lighter. Smally then keeps the original and says Already small.

## More

- [Compress JPEG](https://meetsmally.com/compress-jpeg/)
- [Compress PNG](https://meetsmally.com/compress-png/)
- [Compress PDF](https://meetsmally.com/compress-pdf/)

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Smally in the browser. Smally for Mac 0.16.0 (build 35, beta) needs Apple silicon and macOS 26 or later; download: https://downloads.meetsmally.com/latest. Files are never uploaded. Source of truth: https://meetsmally.com/compress-webp/