30 open-source projects similar to geongeorge/i-hate-regex, ranked by shared indexed features. Tags may describe platforms or build tools rather than the same primary purpose. Check each project’s use case, license, and deployment requirements before treating it as a replacement.
This project is an interactive regular expression learning platform and playground. It provides a guided educational environment for mastering regular expression syntax through step-by-step tutorials and lessons. The platform includes a real-time regex playground for validating patterns against sample text and a specialized tool for analyzing search engine optimization data. Users can experiment with patterns in a sandbox environment and access a syntax reference guide for identifying matching symbols. The system supports content localization for non-English speakers and utilizes a modular f
Regulex is a tool that parses regular expressions into interactive syntax diagrams, rendering them directly on an HTML canvas. It converts a regex string into an abstract syntax tree and visualizes the structure as a navigable diagram, making the internal logic of a regular expression visually accessible. Beyond basic visualization, Regulex provides syntax validation that detects and reports precise errors, including invalid back references and octal escapes. It also offers a state-machine visualization mode that maps regex AST nodes to NFA-like states and transitions, rendered as a directed
Any-rule is a multi-platform regular expression tool that provides a curated catalog of over 70 ready-to-use patterns for validating and extracting common data formats. The project separates its static regex collection from editor-specific plugins, allowing the same pattern library to be accessed through VS Code, IntelliJ IDEA, Alfred Workflow, and a web interface. The tool enables keyword-based pattern retrieval, letting users search for the correct regex by typing descriptive terms rather than remembering exact syntax. It covers a broad range of validation needs including email addresses, U
Regexr is a web-based regular expression IDE designed for building, testing, and debugging patterns. It functions as a testing tool to validate expressions against sample text and a learning tool that provides an interactive guide and a built-in cheat sheet for studying syntax. The platform includes a community regex library, which is a searchable repository of user-contributed patterns. This enables the discovery, sharing, and reuse of proven matching logic through a public directory and collaborative sharing links. The tool supports real-time pattern construction with syntax highlighting a
regex-vis is a set of tools for the visualization, editing, and testing of regular expressions. It provides a visualizer that generates structural maps of patterns to clarify how they parse and match text, alongside a visual editor for modifying patterns without manual character entry. The system includes a regular expression tester to validate patterns against sample strings. These tools enable the debugging of pattern matching behavior by visualizing the internal structure of the regular expression.
Brackets is an extensible JavaScript IDE and front-end code editor specifically designed for authoring HTML, CSS, and JavaScript. It serves as a web development text editor that provides a specialized environment for building websites. The editor is distinguished by its live preview capabilities, which render code changes in a browser in real time for immediate visual feedback. It further supports front-end workflows through inline style editing and the ability to synchronize code changes across multiple browser windows for cross-browser testing. The project includes a wide range of developm
OpenUI is an AI design sandbox and natural language prototyping tool used to generate and render live user interface components from text descriptions. It functions as an LLM UI generator that translates natural language into executable HTML and CSS code. The system provides a pipeline for iterative refinement, allowing users to update existing interfaces by feeding previous code versions and new instructions back into the model. It also acts as a frontend framework converter, transforming HTML markup into different library formats to maintain styling consistency across various web frameworks
EmDash is an open-source content management system built on Astro that combines a visual admin panel with a plugin-driven architecture and server-side rendering. It provides a complete content management system with structured content modeling, a rich text editor using Portable Text format, and a TypeScript API for type-safe content queries. The system supports authentication through passkeys, OAuth 2.1, and external providers, with role-based access control and fine-grained permission scopes. What distinguishes EmDash is its plugin development framework, which supports both native plugins ru
Markor is an Android text editor that handles Markdown, todo.txt, and plain text files, functioning as a note-taking and task management tool. It operates directly on the device's filesystem, storing content as plain files without a proprietary database, and integrates with third-party sync tools like Syncthing for cross-device file synchronization. The editor provides syntax highlighting for multiple formats, a live preview that converts markup to HTML in real-time, and the ability to export documents as HTML or PDF. It also includes a file browser with a user-selectable root folder and supp
Ghostwriter is a distraction-free Markdown text editor and writing environment. It functions as a desktop application designed to minimize visual noise while authors compose long-form documents using Markdown syntax. The project integrates a live previewer that renders Markdown text into HTML in real time using a Webkit engine. It also serves as a document converter, allowing users to export Markdown files into various other formats through integrated processing tools. The software provides cross-platform text editing for Windows and Linux, built using the Qt framework for native performance
Phoenix is a comprehensive web development suite that provides a browser-based code editor, an AI-powered coding assistant, and a live web previewer. It integrates a visual Markdown document editor and a web-based Git client, allowing users to write and manage HTML, CSS, and JavaScript across different devices and platforms. The environment features a visual UI design system that maps canvas manipulations directly to code and enables in-place CSS editing. It supports real-time change previews and responsive layout testing across multiple device breakpoints to verify rendering on phones, table
An invoice generator app built using Next.js, Typescript, and Shadcn
Quarto is an open-source scientific and technical publishing system built on Pandoc that converts Markdown and Jupyter notebooks into a wide range of output formats. It functions as a multi-format document converter, a reproducible research platform, a static site generator for technical content, and an interactive dashboard builder, all within a single framework. The system is distinguished by its ability to produce HTML, PDF, Word, ePub, and slide decks from a single Markdown source, while embedding executable code blocks in Python, R, Julia, or Observable for dynamic, reproducible document
Macdown is a markdown text editor and HTML renderer designed for structured document composition. It provides a workspace for writing in lightweight markup syntax while simultaneously generating a live HTML preview of the rendered output. The editor distinguishes itself through a programmable interface, offering a command line utility to open files or pipe text directly into the application. It further supports extensibility via a plugin system that allows for the addition of custom features and functional modules at runtime. The application handles technical documentation requirements inclu
Magic Resume is a local-first resume builder that runs entirely in the browser, storing all user data on the device to protect privacy and enable offline access. It combines a real-time document editor with AI-powered writing assistance that checks grammar and suggests professional phrasing directly within the editing interface. The application provides a selection of pre-designed resume templates and supports custom theme-based visual styling, allowing users to switch between color and font schemes or toggle a dark mode for comfortable editing in different lighting conditions. A client-side
Tinymist is a comprehensive suite of tools for Typst document authoring, serving as a language server, document compiler, and project manager. It provides a standardized language service via the Language Server Protocol to enable editor features such as autocompletion, navigation, and semantic highlighting. The project distinguishes itself by integrating a TCP-based live preview server for real-time visual rendering and an advanced static analysis tool that utilizes abstract syntax trees and bidirectional type checking. It also includes a project management system capable of handling multi-fi
This project is a legal document generator that creates privacy policies and terms of service for mobile and web applications. It transforms user-provided information about an app's data collection practices and third-party service usage into structured legal texts that meet regulatory requirements. The generator produces tailored documents for different platforms and compliance frameworks, including Simple, No-Tracking, and GDPR-compliant policy variants. It also supports generating terms and conditions documents with DSA compliance, user-generated content policies, and governing law clauses
Grex is a regular expression generator and Rust pattern library that synthesizes a single regular expression from a set of provided text test cases. It functions as a command-line tool and a library, utilizing a Rust-based engine to analyze commonalities across input strings to create matching patterns. The project distinguishes itself through Unicode-aware grapheme processing, ensuring consistent matching across diverse character sets and non-ASCII text. It also provides Python bindings to make its core Rust logic available within Python environments. The system covers pattern generalizatio
This project is a comprehensive framework for iOS application development, centered on building mobile applications that feature custom user interface components, asynchronous task management, and local data persistence. It serves as a technical knowledge base for software engineering, providing tools to organize and publish architectural analyses and notes in Markdown format. The framework distinguishes itself through a robust document-based storage layer that utilizes BSON-formatted records to perform CRUD operations within a NoSQL document store. It provides extensive system integration ca
ioscreator is a comprehensive set of educational resources and reference guides for building mobile applications on the iOS platform. It provides a structured course and tutorial series focused on combining interface design with mobile logic using the SwiftUI framework. The project distinguishes itself through specialized guides for hardware integration and state management, covering the use of device sensors such as the camera, microphone, and accelerometer. It also includes a dedicated UI component library and tutorials for implementing native Apple system services. The materials cover a b
Twill is a Laravel CMS toolkit and admin panel generator designed for building custom administrative consoles and content management systems. It serves as a headless CMS framework and a toolkit for defining content models and managing structured data through a dedicated administrative interface. The project features a visual block editor that allows publishers to arrange and configure reusable content sections via a drag-and-drop interface. It includes a dedicated digital asset manager for storing, cropping, and optimizing images and files across local or cloud storage, as well as a multiling
Pendulum is a Python date and time library that provides a simplified interface for date arithmetic, ISO parsing, localization, and timezone management. It serves as a replacement for the standard library datetime module, extending existing classes to maintain compatibility while offering a more intuitive management interface. The library distinguishes itself through a natural language date formatter that translates time differences into localized strings and a dedicated ISO 8601 date parser. It also includes tools for time-dependent logic testing, allowing the system clock to be mocked or fi
This is a VS Code extension that provides a suite of tools for editing, previewing, and managing Markdown documents. It integrates an authoring toolset, a link management system, and a rendering engine to support the creation of structured technical documentation and knowledge bases. The project distinguishes itself through advanced reference handling and accessibility features, such as a system that automatically updates internal links when files or headers are renamed and an artificial intelligence tool for generating descriptive image alt text. It also supports the rendering of Mermaid dia
SVGOMG is a browser-based SVG minification tool that applies SVGO transformations entirely on the client side. It processes SVG files in a Web Worker to keep the user interface responsive, then displays the original and optimized file sizes side by side, including gzipped size estimates. The tool provides a live preview of the optimized SVG markup, rendered directly in the browser for immediate visual feedback. Users can configure which SVGO optimization plugins are enabled or disabled, set numerical precision for coordinates and transforms, and optionally pretty-print the output. Multiple op
This project is a physically based rendering system and ray tracing engine designed to generate photorealistic images. It operates as a spectral rendering system that records radiance across discretized wavelength buckets and functions as a volumetric path tracer to compute light scattering and absorption within participating media. The engine utilizes GPU acceleration to execute its rendering pipeline on parallel graphics hardware. It integrates real-world optical data, such as measured spectral power distributions and lens description files, to simulate the behavior of physical camera syste
Tempo is a JavaScript date manipulation library that provides a suite of tools for parsing, formatting, and calculating dates and times. It serves as a date arithmetic engine, a locale-aware formatter, and a timezone offset manager for native JavaScript date objects. The library includes a dedicated ISO 8601 date parser for validating and converting standardized strings into date objects. It handles geographic normalization through IANA timezone offset management and utilizes the native Internationalization API for region-specific date formatting. The project covers a broad range of date and
Vizro is a low-code Python framework for building production-ready data visualization applications. It functions as a UI orchestrator that allows users to define multi-page analytical dashboards through structured configurations in Python, YAML, or JSON, reducing the need for extensive frontend engineering. The project distinguishes itself through generative AI integration, utilizing a model context protocol server to translate natural language descriptions into validated dashboard configurations, charts, and layouts. It also features a decoupled data cataloging system that separates data sou
Melody is a regular expression transpiler and pattern compiler that translates a high-level, human-readable syntax into standard regular expressions. It functions as a tool to simplify the creation and maintainability of complex matching patterns. The project provides a specialized syntax for defining reusable variables and macros to reduce duplication within expressions. It includes native support for mapping specialized labels to Unicode category properties and automatically handles the escaping of literal text. The system is accessible through several interfaces, including a command-line
This project is a visual HTML email builder and responsive design tool used to create mobile-ready email layouts. It includes a dynamic email template engine and an artificial intelligence generator for drafting email copy and structural layouts. The system utilizes a component-based layout engine to build emails using standardized blocks and columns, which are translated into table-based HTML for compatibility across diverse email clients. It supports personalization through variable-based template interpolation and conditional logic to adjust content based on specific data sets. The platfo
Browserslist is a browser target configuration tool and market share database. It provides a shared configuration layer that synchronizes supported browser versions across various front-end development tools, such as JavaScript compilers and CSS autoprefixers, to determine necessary syntax transforms and polyfills. The project translates human-readable queries into specific lists of browser versions based on global and regional usage statistics. It allows for the integration of custom analytics data to override global market share and can generate regular expressions from target lists to dete