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Regex Tester details

Test regular expressions with real-time matches, groups, flags, and sample text. Regex Tester is now a native Toolars workspace for local pattern debugging and match review.

Native workspaceFreeRegexTestingText

Overview

Regex Tester evaluates regular expressions against sample text, showing matches, capture groups, flags, and syntax errors without uploading source strings. The workspace migrates the Aixtral source behavior into Toolars-native pattern, flag, sample, and result panels so developers and editors can debug expressions locally before pasting them into code or data workflows.

How it works

1Enter pattern and textAccept a regular expression, flags, and sample text for local matching and debugging.Input
2Show matchesReturn match ranges, capture groups, counts, flag behavior, and preview-friendly annotations.Output
3Catch invalid patternsMake syntax errors, runaway assumptions, empty matches, and flag interactions visible before copying.Review
4Copy local outputAdds a native workbench, pattern and flag controls, sample text testing, match rows, and public catalog readiness.Handoff

Local regex testing model

LocalInputs are processed in the browser by the native Toolars workspace and are not uploaded for conversion.
ReviewThe JavaScript regular expression engine is used locally, so results should be checked against other runtimes when syntax differs.
PublicThis tool has a dedicated Toolars workspace, source-backed library implementation, and focused tests.

Implementation handoff

AXAixtral sourceUses the Aixtral Regex Tester implementation, examples, and tests as the behavior source.Source
UIToolars workspaceAdds a native workbench, pattern and flag controls, sample text testing, match rows, and public catalog readiness.Ready