NanoPNG - Free Image Compressor That Runs in Your Browser | No Upload Required
Start Compressing
Drop images here, click to browse, or paste from clipboard
No signup • No server uploads • 100% private
Sample Result
2.4 MB
→
480 KB-80%
PNGJPEGWebPAVIFGIFHEICTIFFBMPSVGJXL
🔒 Files stay on your device•WebAssembly powered
🔒
100% browser-based • Zero server uploadsCompress imageswithout uploading them.
80% smaller files. Zero server uploads. Your images never leave your browser.
How NanoPNG Works
Compress confidential designs without worrying who's storing your unreleased work.
No upload wait time. Processing starts instantly in your browser.
Verify it yourself: open DevTools → Network tab. Zero outbound image data.
Why Choose NanoPNG
Instant Processing
No upload wait time. Compression starts immediately in your browser.
Unlimited & Free
No file limits, no signup, no premium tier. Process 100 images at once.
Inspect the Code
Open your browser's network tab. Zero outbound requests with your images.
Quick Edits Included
Blur, sharpen, crop, rotate, add watermarks — all without uploading.
⚡WebAssembly powered|PNG • JPEG • WebP • AVIF • GIF • HEIC • TIFF • BMP • SVG • JXL