Our story
Regular expressions have a notorious reputation for being cryptic, fragile, and hard to inspect. Developers often bounce between slow online testers with invasive ads or obscure command-line flags just to verify a simple format check.
regexhome was built to provide a modern, distraction-free environment where everything you type executes immediately on client hardware. No network latencies, no paywalls, and no third-party telemetry harvesting your private strings or token secrets.
Whether you are constructing a complex parser, cleaning data, or testing against edge cases, regexhome combines testing, visual block building, step-by-step backtracking inspection, and test assertion suites in one unified screen.
What we believe
Privacy by default
Your patterns and test datasets never touch our servers. Execution happens exclusively inside your local JavaScript engine.
Plain-English first
Syntax errors and token breakdowns are parsed into understandable sentences, so you never have to guess what a flag is doing.
Start from examples
A library of categorized standard snippets ensures you never have to invent RFC email or UUID expressions from scratch.
Show the work
Step through execution, trace backtracking bottlenecks, and inspect catastrophic ReDoS vulnerability risks.
What's inside
Live match highlighting
Instant syntax coloring and match coordinate pinpointing on every keystroke.
Visual block-based builder
Assemble regular expressions with drag-free clickable tokens and repetition dials.
Plain-English pattern explainer
Instant breakdown of every group, token, and quantifier in plain human language.
Step-by-step backtracking debugger
Scrub through regex engine passes to diagnose backtracking penalties and ReDoS risks.
Live replace preview
Real-time substitution previews with capture group insertion tokens.
Regression test suites
Maintain custom assertions to protect your patterns from unexpected breaking changes.
Ready to try it?
No sign-up, no install. Open the workbench and start matching.