Compress Image
To compress an image, drop it into the tool above, set a quality level or enter a target file size in KB, and click Compress. The tool shows you a before-and-after file size comparison and runs entirely in your browser — your files are never uploaded.
Drop .jpg, .jpeg, .png, .webp files here
or click to browse · convert as many as you like
How to use Compress Image
- Drop your JPG, PNG, or WEBP images into the box above.
- Set a quality level or enter a target file size (e.g. under 200 KB).
- Click Compress — see the before/after file size comparison.
- Download your compressed images individually or as a ZIP.
Frequently asked questions
How do I compress an image to under 100 KB?
Enter 100 in the 'Target file size' field and click Compress. The tool automatically finds the right quality level to hit your target. Results vary by image content — very detailed photos may not compress as far while staying visually acceptable.
How do I reduce image file size without losing quality?
Set quality to 80–85% for JPG — most images look identical to the original at this level while reducing file size by 50–70%. For PNG, switching to JPG format often gives the biggest reduction. The before/after comparison shows exactly what you're trading.
What's the difference between compressing JPG and PNG?
JPG compression is lossy — it discards some image data, which is why JPGs can be very small. PNG compression is lossless — it reorganizes data without losing any, so PNGs are larger but pixel-perfect. For photos, JPG is almost always better. For graphics with text or sharp edges, PNG is better.
About Compress Image
Large image files slow down websites, fill up email attachments, and take longer to share. Compression reduces file size by encoding image data more efficiently — at moderate settings, the visual difference is imperceptible.
This tool offers two modes: quality-based compression (set a percentage and see the result) and target-size compression (enter a maximum file size in KB and the tool finds the right quality level automatically). The before/after display shows exactly how much you've saved.
JPG compression is lossy — it discards some image data. PNG compression is lossless — it reorganizes data without losing any. WEBP supports both modes. For the smallest files, consider converting PNG to JPG or WEBP while compressing.
Everything runs in your browser. No upload, no server, no privacy risk.