Images & DesignRuns in your browser
Image Compressor
Shrink JPG, PNG and WebP with a live size comparison.
Use the Image Compressor tool
What this image compressor does
Image Compressor re-encodes an image at a lower quality or smaller dimensions and shows you exactly how much space you saved. The preview updates as you move the quality slider, so you can find the point where file size drops sharply but the image still looks good.
The compressor uses the browser's canvas encoder. There is no upload, no watermark and no daily limit. Note that PNG images are re-encoded as PNG or JPEG depending on the output you choose — photographic content usually becomes far smaller as JPEG or WebP.
Why use it
- Get product photos under a marketplace's size limit.
- Speed up a blog by shrinking hero images before upload.
- Reduce attachment sizes without installing desktop software.
How to use it
- 1Select or drop an image.
- 2Set the maximum width, quality and output format.
- 3Compare the original and compressed sizes in the result panel.
- 4Download the compressed file, or adjust and retry.
Worked examples
Blog header
Input
A 4000 px JPEG · max width 1600 px · quality 75 · WebP
Output
A much smaller file that displays sharply at typical content widths.
Actual savings depend on the source image. Compare visually before publishing.
Common mistakes
- Compressing the same image repeatedly, which compounds artefacts.
- Using very low quality for text-heavy screenshots; PNG or WebP lossless is better for flat graphics.
- Resizing below the largest size at which the image will be displayed.
Frequently asked questions
Does compression remove metadata?
Yes. Re-encoding through canvas drops EXIF data, including GPS location. That is usually desirable for privacy.
Which format should I pick?
WebP gives the best size for most photographs. JPEG has the widest compatibility. PNG is best for logos and screenshots with sharp edges or transparency.
Is my image uploaded?
No. Everything is decoded and re-encoded in your browser.