Developer utilities
Quick-hit utilities for the small problems that show up every day — regex, cron, epoch time, diffs, markdown, text transforms, base conversions. Every tool is a single URL away and runs in your browser.
Test regular expressions with live matches.
Explain cron and see next run times.
Convert Unix timestamps to dates.
Compare two texts side by side.
Convert Markdown to HTML and back.
camelCase, snake_case, Title Case and more.
Count words, characters and reading time.
Generate placeholder text.
Binary, octal, decimal and hex.
Text to binary and ASCII, and back.
Build Markdown tables visually.
A full-screen countdown with alarm.
Text ↔ Morse, with audio.
Build regex visually with live matches.
Figlet-style text banners.
25/5 focus cycles with alarm and session count.
Convert a time across time zones, with a world clock.
Length, mass, temperature, volume, speed and more.
Read text aloud with your browser voices.
Live character count with platform limits.
The day-to-day toolkit
Debugging a regex? The regex tester shows matches and groups live as you type; the regex generator goes the other way for the patterns you can describe but never quite remember. The cron visualizer explains an expression in plain English plus the next runs, the epoch converter handles Unix-time juggling, and the diff checker is the fastest way to compare two strings without leaving the tab. For prose work, markdown to HTML, case converter and the word counter cover the rest.
Frequently asked questions
- Yes. Every tool here is free, needs no sign-up, and runs entirely in your browser. No uploads.
- Once the page is loaded, every tool listed here runs purely on your device. Drop the page tab and it keeps working without a connection.
- They live at a stable URL — no install, no permission grants, share a link with a teammate and they have the same tool open in seconds.