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How to Use
- 1Drag and drop an image into the upload zone, or click to browse files.
- 2Choose the output format: JPEG, PNG, or WEBP.
- 3Adjust the quality slider — 75–85% is ideal for most use cases.
- 4View the side-by-side comparison with file size and savings percentage.
- 5Click 'Download Compressed Image' to save the result.
About Compress Image
Compress Image reduces file sizes for faster page loads, easier sharing, and meeting upload limits. Adjust quality and convert between JPEG, PNG, and WEBP in a single step — all processed directly in your browser using the Canvas API.
The side-by-side preview shows original and compressed images together with exact file sizes and savings percentage, so you can find the perfect balance between visual quality and file size before downloading.
WEBP typically produces files 30–50% smaller than equivalent JPEG at the same visual quality. Use JPEG for maximum compatibility, PNG for lossless transparency, and WEBP for the best compression ratio on modern browsers.
Frequently Asked Questions
Can I convert format while compressing?
Yes. Upload a PNG and compress as WEBP, or vice versa. The tool handles format conversion and compression in a single step.
What quality setting works best?
75–85% is ideal for web use — visually indistinguishable from the original but significantly smaller. Use 60% for thumbnails where file size matters more.
Are images uploaded to your server?
No. All compression runs locally in your browser using the Canvas API. Your files never leave your device.
Why is my compressed PNG larger than the original?
PNG uses lossless compression, so re-encoding via Canvas may produce a slightly larger file. For smaller sizes, convert to WEBP or JPEG instead.
What is the maximum file size I can compress?
It depends on your device's memory. Most modern devices handle images up to 20–30 MB without issues.