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Regex lessons beside a cheatsheet and playground

Edit plain-text and source files on macOS with syntax highlighting, encoding tools, scripting, and regex search.

A lightweight programmer's editor for website files, scripts, and source code.

AI tools that turn plain English into spreadsheet formulas, scripts, and data analysis.

Replace text in files or streams with a compact, readable command-line syntax.

Embed Perl-compatible regular-expression matching in applications through a portable C library.

A terminal code editor built around selecting text first and applying editing commands to it.

Auto-redact PII in PDFs and screenshots on Mac, fully offline

Inspect regular expressions visually

Display and export a regex diagram

Search source trees recursively for regular expressions while respecting ignore rules by default.

Edit source files with a lightweight cross-platform editor and optional Python add-ons.

A code and text editor with configurable search across the current file and other open documents.

Search documents and replace text files

Reuse regex searches across Windows folders

Search text interactively with reusable patterns

Test matching, substitution and extraction rules

Compare lists and clean ordered text

Hybrid retrieval engine with vector search and managed inference in one API.