Tools
A growing collection of practical browser-based tools for developers, writers, and AI workflows. Every tool runs locally in the browser and stays compatible with this site's static export setup.
Estimate tokens from pasted text and compare how much context it uses across popular AI models.
Count characters, words, and sentences for drafts, documentation, and pasted copy.
Generate random or sequential ports with presets, range filters, and a common ports reference table.
Generate UUIDv7 by default, with earlier UUID versions available for compatibility.
Generate strong passwords in the browser with configurable length and character sets.
Generate random strings for slugs, tokens, fixtures, and other test values.
Generate random first and last names for demos, examples, and test data.
Encode or decode URL-safe values in the browser for redirects, callbacks, and debugging.
Hash a file in the browser and compare it against an expected digest for verification.