Excel Formula & Shortcut Finder: Every Function, Shortcut & Trick
The complete Excel reference tool. 496 formulas, 345 keyboard shortcuts, 115 hidden tricks, and 55 VBA snippets. Searchable, filterable, free. No signup …
Open tool →Free tools
Little utilities for a smoother day.
Free browser-based utilities, no signup and no usage limits. Built because I needed them, kept public because other people do too.
Free Invoice & Receipt Generator
Create professional invoices and receipts instantly customize your business details, add line items, and download as PDF. Free, fast, and no sign-up …
Open tool →Free Business Card Generator
Create professional business cards online for free. Add your logo, photo, digital signature, and QR code. Choose from premium templates and download …
Open tool →Free Password Hasher: MD5, SHA-256, bcrypt & Argon2
Hash passwords online using MD5, SHA-1, SHA-256, SHA-512, bcrypt, and Argon2. Includes hash verifier, hash identifier, bulk hasher, and salt generator. 100% …
Open tool →Free Password Generator & Strength Checker
Generate strong, secure passwords instantly. Supports custom length, symbols, numbers, and uppercase. Includes passphrase generator, strength meter, password history, and QR code. …
Open tool →Free QR Code Generator: URL, Wi-Fi, vCard, Text & More
Generate QR codes instantly for URLs, Wi-Fi networks, contact cards, plain text, email, and phone numbers. Download as PNG or SVG in …
Open tool →Free Website Tech Stack Detector
Enter any URL and instantly discover the technologies behind it, frameworks, CMS, hosting, analytics, JavaScript libraries, fonts, and more. Perfect for developers, …
Open tool →Why these exist
Every one of these started as something I needed mid-project. The tech stack detector came from quoting work without knowing what a site was built on. The password hasher came from testing bcrypt and Argon2 output while writing auth code.
They run entirely in your browser where the job allows it, so nothing you paste is sent to a server. No accounts, no daily limits, no watermarks.
If one of these is close to what you need but not quite right, I build custom tools too.