Compress PNG — free & private
Reduce PNG file size while preserving transparency
Local browser workflow
Compress PNG images instantly in your browser. No image upload. Processing stays on your device. Everything runs on your device — free, no account required, and image files are not uploaded to PictureConvert. Related: Compress JPG, PNG to WebP Converter, and Resize Image.
Drag & drop your image
or click to browse files
Supports: PNG (max 100MB)
- Processed locally
- No image upload
- No account required
- Images not stored by PictureConvert
After you compress
Strip metadata before sharing, resize for social crops, or optimize for web delivery if the image is heading to a site.
Updated for 2026
What this tool does
This tool compresses PNG images to reduce file size while preserving transparency. Results vary by content — use the preview to judge visual similarity. For web-ready photos, converting to WebP often provides even better size savings.
Trust and privacy are built into the workflow. Nothing leaves your device during processing, and there is no account setup. That makes it suitable for personal photos, client assets, product shots, and everyday creative work.
How to compress images
- Upload or drag your file into the tool above.
- Choose output settings such as quality, size, or page options.
- Preview the result before you download.
- Download the finished file for web, email, print, or sharing.
Tip: start with balanced quality settings rather than maximum compression so detail stays intact for web and sharing.
Key benefits
- PNG compression preserves transparency unlike converting to JPG
- Results vary based on image content - graphics compress better than photos
- For photos, consider converting to JPG for better compression
- Some PNGs with many colors may not compress significantly
Privacy note: no files leave your device. All compress steps run locally in your browser.
Compressed vs Original PNG
| Feature | Compressed | Original |
|---|---|---|
| File Size | Reduced | Large |
| Transparency | Preserved | Preserved |
| Quality | Optimized | Lossless |
| Web Ready | Yes | No |
Common use cases
Use this compressor for PNG graphics, logos, icons, and screenshots that must keep transparency. For a full size-reduction playbook—including when to resize or switch formats—see How to make a PNG file smaller. Photos without transparency often shrink more as JPG or WebP. Oversized canvases should be resized first. Hard upload caps are easier with Smart Optimizer presets like 100KB or under 1MB.
After you finish, continue with related PictureConvert tools if you need another conversion, compression pass, crop, or metadata step — all without leaving the browser.
FAQs
Reviewed by the PictureConvert team
. This page is maintained so recommendations stay practical and current for Compress PNG, with a focus on private, browser-local processing.
Related Tools
More options in Compress and nearby workflows.