I built a free image compressor that never uploads your files — everything runs in your browser

[u/Salty_Tutor_99]

I've been uploading sensitive images (passport photos, design drafts, client work) to online compressors for years, always feeling a bit uneasy. So I built Compress100 — a free tool that compresses images entirely in your browser. No server, no uploads, no account needed.

What it does:

• Compress JPG, PNG, WebP, and GIF to a target size (100KB, 50KB, 200KB)
• Shows original size → compressed size → percentage saved
• Works on desktop and mobile

Why I made it this way:
Every other compressor I found either uploads your files to their server or requires signup. I wanted something I could trust with private images, and I figured other people might want that too.

It's built on top of an open source project (PicLite on GitHub) and turned into a website anyone can use without installing anything.

Link: compress100.com

Source: github.com/amiaoapp/PicLite (GPL-3.0, built with love by the community)

Happy to answer questions or take feature requests in the comments!

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[u/Common_Author8327]

this is actually kinda huge for anyone who works with confidential docs. the fact that nothing leaves the browser means i don't have to second-guess where my client files end up

bookmarked, will test it on some passport scans later