Image Compressor
Reduce JPG, PNG and WebP file size with a live quality preview.
Files and text are processed locally in your browser. Tools that must reach the network say so explicitly.
About the Image Compressor
Make images lighter for faster pages and smaller uploads. The Toolcenter Image Compressor re-encodes JPG, PNG and WebP files at a quality level you choose, with an optional maximum width, and shows the original and compressed sizes side by side. Everything runs on your device — images are never uploaded.
How to use it
- 1Drop an image into the compressor.
- 2Choose the output format (JPEG, WebP or PNG).
- 3Drag the quality slider and set a max width if needed.
- 4Compare the result and download the smaller file.
Key features
- JPEG, WebP and PNG output
- Live quality preview with instant size feedback
- Optional downscaling by maximum width
- Before/after size and dimension stats
- Local processing — no upload, no watermark
Frequently asked questions
Which format gives the smallest file?+
WebP usually produces the smallest file at the same visible quality, followed by JPEG. PNG is best only for flat graphics and transparency.
Will compression blur my image?+
At 70-85% quality most photos look identical. Lower quality trades sharpness for size — the preview shows the effect live.
Is there a file-size limit?+
No. Images are processed in the browser, limited only by your device’s memory.
Are my images uploaded?+
No. Compression uses the browser canvas API, so the image never leaves your computer.
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