Compress Image
Reduce image file size with quality control
Compress Images — Free Online Image Compressor
DocTools.CC is a free online image compressor that reduces JPG, PNG, WebP, and AVIF file sizes with a quality slider and side-by-side preview. No registration, no watermarks.
How to Use
- Upload your image (JPG, PNG, WebP, or AVIF)
- Adjust the quality slider
- Preview the result side by side
- Download your compressed image
Key Features
- 100% free with no daily limits
- No registration or account needed
- Side-by-side quality preview
- Supports JPG, PNG, WebP, AVIF
- Small files processed in your browser
- Files automatically deleted after 30 minutes
Frequently Asked Questions
Everything you need to know about this tool
Upload your JPG, PNG, WebP, or AVIF image above, adjust the quality slider, and click Compress. See a side-by-side preview before downloading. No account needed — completely free.
JPG images typically shrink 50–80% with minimal visible quality loss. PNG files can be reduced 30–70% depending on content. The quality slider lets you find the perfect balance between file size and visual quality.
No. Small images are processed entirely in your browser — nothing leaves your device. Only very large images may be sent to our server for processing, and they are deleted within 30 minutes.
JPG/JPEG, PNG, WebP, and AVIF. You can compress any of these formats and the output matches the original format. PNG-to-PNG compression uses lossless optimization that reduces file size without any quality loss.