Image Compressor
Make image files smaller for websites, email and uploads by adjusting quality and, optionally, the maximum width — and see exactly how much you save.
Result
Choose an image to compress.
How to use this tool
- Add an image, choose JPEG (works everywhere) or WebP (usually smaller).
- Move the quality slider; the result updates and shows the saving.
- For big photos, set a Maximum width such as 1600 px — this usually saves far more than lowering quality.
How it works
The image is redrawn in your browser and re-encoded with the browser’s built-in JPEG or WebP encoder at the quality you choose. Lower quality discards fine detail the eye notices least. Pixel count matters most: halving the width and height leaves a quarter of the pixels.
Example
A typical phone photo
A 4 MB, 4000 × 3000 JPEG compressed at 75% with a maximum width of 1600 px usually ends up a few hundred kilobytes — often a saving of 85–95%. Results depend on the photo’s content.
Privacy and limitations
- Compression runs on your device; nothing is uploaded.
- Very small or already-optimised images may not get smaller; the tool tells you when that happens.
- JPEG has no transparency, so transparent areas become white. Some older browsers cannot create WebP files and fall back to PNG.
Frequently asked questions
What quality setting should I use?
For photos on screen, 70–85% is usually indistinguishable from the original. For printing or archiving, keep the original.
Is WebP better than JPEG?
WebP is typically 25–35% smaller at similar quality and supports transparency. Every current major browser can display it.