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RegexCraft
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 are marked High or Approximate fidelity. Match mode highlights matches and capture groups, while Replace mode previews substitutions and supports backreferences. Compare mode places results from two to four flavors side by side, including validity, matches, groups, fidelity, and known differences. Its educational step-through debugger walks through the .NET engine with F10 and F11. The GREP tool searches and replaces across folders with include and exclude globs, cancellation, dry-run, and backups. It generates code snippets for languages including C#, JavaScript, Python, Go, and Swift. Library, history, and settings stay in the operating system 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 Business license at $49 as a one-time purchase.
For and against
For
- Full-fidelity support for .NET, PCRE2, and JavaScript.
- Compare results across two to four flavors.
- Folder search supports dry-run and backups.
- Portable downloads need no installer.
Against
- Other listed flavors have High or Approximate fidelity.
- Core product has no cloud sync.
- Commercial and organizational use requires a paid license.
The verdict
RegexCraft combines regex testing, comparison, folder search, and code generation in a desktop workbench. Personal use is free, while commercial use costs $$49 as a one-time purchase.
Who it suits
RegexCraft suits people working with regular expressions on Windows, Linux, or macOS, including those who want to compare flavors or inspect matches. Personal use is free; businesses and other commercial users need the paid license.
Plans and prices
Personal
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
Commercial, business, or organizational use · Honor system with no activation · Same binaries as Personal
Read 29 Sep 2026 · regexcraft.com
On the record
- Code generation
- It generates code snippets for C#, JavaScript, TypeScript, Python, PHP, Java, Go, Rust, Ruby, Perl, Kotlin, and Swift.regexcraft.com · read 29 Sep 2026
- Compare
- Compare mode shows side-by-side results for 2–4 flavors, including validity, matches, groups, fidelity badges, and known differences.regexcraft.com · read 29 Sep 2026
- Debug
- Debug step-through is an educational walkthrough for the .NET engine using F10/F11.regexcraft.com · read 29 Sep 2026
- Downloads
- Portable self-contained zips are available for Windows x64, Linux x64, macOS Intel, and macOS Apple Silicon; no installer is required.regexcraft.com · read 29 Sep 2026
- File search
- GREP searches and replaces across folders with include/exclude globs, cancellation, dry-run, and backups.regexcraft.com · read 29 Sep 2026
- Integrity
- A SHA256SUMS.txt file is attached to GitHub releases when present for integrity verification.regexcraft.com · read 29 Sep 2026
- License limit
- Business, commercial, organizational, government, or revenue-generating use requires a paid commercial license.regexcraft.com · read 29 Sep 2026
- 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.regexcraft.com · read 29 Sep 2026
- Maker
- RegexCraft is created and maintained by Marshall Moorman, and its application source is proprietary.regexcraft.com · read 29 Sep 2026
- Match and replace
- Match mode highlights matches and capture groups, while Replace mode previews substitutions and supports backreferences.regexcraft.com · read 29 Sep 2026
- Product
- RegexCraft is a desktop workbench for testing, replacing, comparing, debugging, and generating regular expressions.regexcraft.com · read 29 Sep 2026
- Regex flavors
- It supports .NET, PCRE2, and JavaScript with full fidelity, and lists other flavors with High or Approximate fidelity.regexcraft.com · read 29 Sep 2026
- Security and licensing
- The maker states there are no license keys, activation servers, DRM, or phone-home, and describes RegexCraft as proprietary software.regexcraft.com · read 29 Sep 2026
