Tools

Free online tools and utilities

Regex Tester Online — Test and Debug Regular Expressions Instantly

Writing regex is hard enough without having to run your whole app to test it. Here's a faster way to write and debug regular expressions.

Writing regex is hard enough without having to run your whole app to test it. Here's a faster way to write and debug regular expressions.

Dealing with Base64 strings in your API, email, or config file? Here's what Base64 actually is and how to encode or decode it in seconds.

Using weak passwords in 2026 is a real risk. Here's how to generate strong, random passwords instantly — no app, no install.

Writing a blog post, essay, or tweet? Here's the fastest way to count words and check reading time without any app or extension.

Stop squinting at minified JSON. Here's the fastest way to format, indent, and read JSON without installing anything.