// tools

Free. Ad-free.
Forever.

Small utilities I built because the ad-riddled alternatives annoyed me. Everything runs in your browser — no accounts, no tracking, no upsells.

qr.generate

most used

QR Code Maker

Generate QR codes with custom colors, sizes, and error-correction — then download the PNG. No ads. No tracking. No watermark. It just works, which apparently makes it rare.

eth.validate

Ethereum Address Validator

Check any Ethereum address, including the EIP-55 checksum — entirely in your browser. Nothing you paste ever leaves the page.

unit.convert

Universal Unit Converter

Length, mass, temperature, data, and more — with precise BigInt fraction math instead of floating-point surprises.

text.upper

Uppercase Converter

Paste text, get UPPERCASE. Sometimes the simplest tool is the one you reach for.

text.lower

Lowercase Converter

The sibling tool. paste text, get lowercase.

game.xo

Tic Tac Toe

A tiny game, because not everything needs a business model.