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

Combine Python expressions and shell commands in one Python-based command prompt.

Automate text-heavy tasks and build scripts with Perl's mature language and module ecosystem.

A notepad calculator with variables and calendar expressions

Symbolic transformations for very large expressions

Build text-matching patterns from examples

Inspect regular expressions visually

AI chat platform for anime characters with visual expressions

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

An open-source notebook for multimedia notes, attachments, and personal reference material.

A Windows editor for source and text files with configurable syntax highlighting and Perl- or JavaScript-style regular expressions.

Hand-drawn characters assembled from reusable vector parts

Inspect and transform JSON from a terminal with an interactive viewer and JavaScript queries.

Build JavaScript interfaces with fine-grained reactive signals and JSX.

A lightweight IDE that draws code structure diagrams and visualizes runtime data structures.

Reuse regex searches across Windows folders

AI animation tool for creating cartoon stories with characters, backgrounds and voices

Scientific expressions with variables and numerical calculus

Scientific expressions with dimensions checked as types

Inspect regular expressions as editable building blocks

Preview repeated replacements across text files

Matrix operations with exact expressions in cells

Editable calculations with automatic dependency updates

Validate and convert coded measurement-unit expressions