Zero PNG – Browser-based image compression with built-in privacy

Summary: ZeroPNG is a browser-based image toolbox that compresses, converts, and edits images without uploading files. It supports PNG, JPG, WebP, AVIF, and converts iPhone HEIC/HEIF to JPG/PNG while preserving privacy.

What it does

It compresses, converts, strips EXIF metadata, crops, resizes, and watermarks images directly in the browser, allowing batch processing and offline use after the initial load.

Who it's for

Users needing private, offline image compression and conversion without uploading files.

Why it matters

It ensures privacy by keeping files local while providing comprehensive image editing and conversion tools.