About

tools.tonyzhao.com is a growing collection of small, focused utilities for everyday tasks — counting words, formatting JSON, generating passwords, converting units, and dozens more.

Principles

• Private by default. Wherever possible, tools run entirely in your browser. Your text, files and data are not uploaded to a server.
• Fast and lightweight. No heavy frameworks, no sign-up, no clutter — just the tool you came for.
• Useful first. Each tool does one thing well, with sensible defaults.

This site is built and maintained by Tony Zhao. More tools are added regularly.