This scheduled launch will go live on Monday, December 28, 2026.
RegexTester.dev
VerifiedFree regex tester: real engines, debugger & benchmarks
Developer Tools tool by easy28 liang on Smol Launch.
- Listed
- October 2026
- Website
- regextester.dev
- Maker
- @easy28
About
A free online regex tester that runs real WASM builds of PCRE2, RE2, .NET, Python, Java, Go, Rust and JavaScript right in your browser. Includes a step-through regex debugger with a backtracking flame graph, a benchmark suite for comparing up to 5 patterns, a cross-engine compatibility checker, and an AI regex generator. 14k+ pattern gallery, shareable permalinks. Free, no signup, no cookies.
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