How to Compress Images Online
Learn how to reduce image file size without losing quality using our free online image compressor — no software needed.
Large images slow down websites, fill up storage, and are annoying to send by email. Our free online image compressor reduces file sizes by up to 80% while keeping the visual quality high — all in your browser with zero installs.
Upload Your Image
Click the upload button or drag and drop your image file (JPEG, PNG, or WebP). The original file size is shown immediately.
Adjust Quality
Use the quality slider to set the compression level. 80% is recommended — it delivers a great balance of small size and sharp visuals.
Compress
Click the Compress button. The tool processes the image directly in your browser using web workers for fast, private compression.
Download the Result
Compare the before and after file sizes, then click Download to save your compressed image. The reduction is shown as a percentage.
Pro Tips
- ✓For web images, aim for under 200KB per image to improve page load speed
- ✓JPEG compression works best for photos; PNG is better for graphics with transparency
- ✓Compress images before uploading to any CMS or social media platform
FAQ
- Is the image compressor free?
- Yes, completely free with no sign-up, no watermarks, and no file count limits.
- Is my image data safe?
- Yes. All compression happens entirely in your browser. Your images are never uploaded to any server.
- What image formats are supported?
- JPEG, PNG, and WebP formats are fully supported.
- How much can I reduce the file size?
- Depending on the image and quality setting, reductions of 50–80% are typical while maintaining acceptable visual quality.