Tools that respect your privacy
A growing collection of 76+ browser-based utilities for developers and finance professionals. No sign-up, no APIs, no data collection — everything runs 100% on your device.
76+
Active Tools
10
Categories
0
Servers Used
100%
Private
Built on principles
Six commitments we make to every user
100% Frontend
Every tool runs entirely in your browser. No API calls, no servers, no tracking.
Encrypted Storage
When tools need to save data, it's encrypted with AES-256-GCM before touching localStorage.
No Data Collection
We don't collect, store, or transmit any of your data. Ever. Zero analytics.
Instant & Fast
No loading spinners waiting for API responses. Everything processes instantly in-browser.
Works Offline
Once loaded, most tools work without an internet connection. No server dependency.
Always Free
All tools are free to use. No premium tiers, no sign-up walls, no limits.
How it works
Three simple steps — no complexity
Open in your browser
Visit any tool page — no installation, no sign-up, no downloads required.
Process locally
Everything runs via JavaScript in your browser. Your data never leaves your device.
Encrypted persistence
Preferences and history are stored in AES-256-GCM encrypted localStorage — only you can read it.
Under the hood
Modern web technologies powering every tool
Framework
Next.js + React
Encryption
AES-256-GCM
Processing
100% Client-Side
Storage
Encrypted localStorage
Explore 10 categories
Tools organized by what you need to get done
Ready to try?
Jump right in — no account needed. Pick a tool and start working.
Built with ❤ by STEPlus