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RegexCraft

regexcraft.com

Free plan WindowsmacOSLinux
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Spec score 8.3 #5 of 23 in Regular Expression Testers

What it is

RegexCraft is a desktop workbench for testing, replacing, comparing, debugging, and generating regular expressions. It supports .NET, PCRE2, and JavaScript with full fidelity; other listed flavors have High or Approximate fidelity. Match mode highlights matches and capture groups, while Replace mode previews substitutions and supports backreferences. Compare mode puts results from two to four flavors side by side, showing validity, matches, groups, fidelity, and known differences. Its educational step-through walkthrough covers the .NET engine using F10 and F11. A GREP tool searches and replaces across folders with include and exclude globs, cancellation, dry-run, and backups. It can generate code snippets for languages including C#, JavaScript, Python, Go, and Swift. Library, history, and settings stay in the operating system's application-data folder; the core product has no account system or cloud sync. Personal use is free. Commercial, organizational, government, or revenue-generating use requires a $49.00 USD one-time Business license.

Spec sheet

Product
RegexCraft is a desktop workbench for testing, replacing, comparing, debugging, and generating regular expressions.Read 29 Sep 2026 · regexcraft.com
Maker
RegexCraft is created and maintained by Marshall Moorman, and its application source is proprietary.Read 29 Sep 2026 · regexcraft.com
Code generation
It generates code snippets for C#, JavaScript, TypeScript, Python, PHP, Java, Go, Rust, Ruby, Perl, Kotlin, and Swift.Read 29 Sep 2026 · regexcraft.com
Compare
Compare mode shows side-by-side results for 2–4 flavors, including validity, matches, groups, fidelity badges, and known differences.Read 29 Sep 2026 · regexcraft.com
Debug
Debug step-through is an educational walkthrough for the .NET engine using F10/F11.Read 29 Sep 2026 · regexcraft.com
Downloads
Portable self-contained zips are available for Windows x64, Linux x64, macOS Intel, and macOS Apple Silicon; no installer is required.Read 29 Sep 2026 · regexcraft.com
File search
GREP searches and replaces across folders with include/exclude globs, cancellation, dry-run, and backups.Read 29 Sep 2026 · regexcraft.com
Integrity
A SHA256SUMS.txt file is attached to GitHub releases when present for integrity verification.Read 29 Sep 2026 · regexcraft.com
License limit
Business, commercial, organizational, government, or revenue-generating use requires a paid commercial license.Read 29 Sep 2026 · regexcraft.com
Local data
Library, history, and settings are stored in the operating system application-data folder; the core product has no account system or cloud sync.Read 29 Sep 2026 · regexcraft.com
Match and replace
Match mode highlights matches and capture groups, while Replace mode previews substitutions and supports backreferences.Read 29 Sep 2026 · regexcraft.com
Regex flavors
It supports .NET, PCRE2, and JavaScript with full fidelity, and lists other flavors with High or Approximate fidelity.Read 29 Sep 2026 · regexcraft.com
Security and licensing
The maker states there are no license keys, activation servers, DRM, or phone-home, and describes RegexCraft as proprietary software.Read 29 Sep 2026 · regexcraft.com

Plans and prices

Personal Free Personal, hobby, learning, side projects, and non-commercial use · Full app features · All portable platforms · CSV/JSON export Read 29 Sep 2026 · regexcraft.com
Business $49, paid once One-time purchase Commercial, business, or organizational use · Honor system with no activation · Same binaries as Personal Read 29 Sep 2026 · regexcraft.com

Every RegexCraft plan and price →

Strong points and limits

Strong points

  • Full fidelity for .NET, PCRE2, and JavaScript.
  • Compare mode covers two to four flavors.
  • GREP searches and replaces across folders.
  • Portable downloads are available for Windows, Linux, and macOS.
  • No account system or cloud sync in the core app.

Limits

  • Other listed flavors have High or Approximate fidelity.
  • Debug walkthrough is for the .NET engine.
  • Commercial use requires a paid license.

Who it suits

RegexCraft suits people who work with regular expressions on Windows, Linux, or macOS, including those who want to compare flavors or step through the .NET engine. Its free Personal plan is for hobby, learning, side-project, and other non-commercial use.

Verdict

RegexCraft brings matching, replacement, comparison, debugging, and folder search into one desktop workbench. Personal use is free, but commercial and other revenue-generating use requires the $49.00 USD one-time license.

Where Specifiction places it

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