30 open-source projects similar to javaparser/javaparser, 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.
Recast is a JavaScript AST parser and printer designed for automated code refactoring. It converts source code into abstract syntax trees that can be modified and then printed back into source code. The project focuses on formatting-preserving transformations, storing original whitespace and indentation metadata within syntax tree nodes to reconstruct code without losing its original layout. It also generates character-level source maps to maintain precise correspondences between original input and transformed output. The toolkit includes utilities for syntax tree manipulation using a visito
Markdig is a high-performance Markdown processor for .NET applications that converts Markdown text into HTML or other target formats. It is a CommonMark compliant parser and extensible engine that can transform Markdown into a searchable and manipulatable abstract syntax tree. The library provides a framework for adding custom syntax and rendering logic through a modular pipeline of parsers and renderers. It supports native ahead-of-time compilation and trimming to minimize binary size. Capabilities include the generation of structured HTML with custom attributes and styling, the extraction
PHP-Parser is a tool that converts PHP source code into an abstract syntax tree for static analysis and programmatic manipulation. It functions as a parser, a code generator, and a static analysis framework. The project enables the programmatic construction of abstract syntax tree nodes through a fluent interface and provides the ability to transform these trees back into formatted source code. It includes a serializer that exports abstract syntax trees to JSON format and reconstructs them from strings. The toolset covers several capability areas, including namespace resolution, constant exp
Lombok is a Java annotation processor and boilerplate reduction library designed to automatically generate repetitive source code. It intercepts the compilation process to inject methods and fields directly into Java classes, acting as a source code generator that eliminates the need to manually write common class patterns. The project distinguishes itself through deep integration with the Java compiler and various integrated development environments. It provides IDE plugins that allow editors to recognize and navigate generated methods, preventing false compilation errors and maintaining syn
swift-syntax is a library for parsing, manipulating, and generating Swift source code. It provides a source-accurate abstract syntax tree representation of Swift code, acting as a parser, transformer, and code generator. The project serves as the infrastructure for Swift macro development, enabling the expansion and transformation of source code during compilation. It is used to build compiler tooling for static analysis, formatting, and automated refactoring. The system covers a broad range of source analysis capabilities, including the ability to convert source code into structured trees f
jscodeshift is a JavaScript AST transformation toolkit and codemod engine designed for large-scale code refactoring and structural migrations. It provides a set of utilities to parse source code into abstract syntax trees, programmatically modify those trees, and convert them back into source text. The tool distinguishes itself by preserving original source formatting and stylistic properties during the transformation process. It utilizes a builder for generating structurally valid AST nodes and integrates interchangeable parsing engines to support different language standards and experimenta
Blockly is a block-based coding library and visual programming editor that allows users to build programs by interlocking graphical blocks. It functions as a visual code generator, translating these arrangements of logic blocks and variables into executable source code for various programming languages. The library provides a framework for creating custom visual programming languages and low-code logic designers. It utilizes an SVG-based UI library to render interactive, draggable elements on a web canvas. The system is designed as an accessible web UI framework with integrated keyboard navi
OpenRewrite is an automated refactoring engine and source-to-source migration framework. It uses a lossless semantic tree parser to represent source code as type-aware trees that preserve original whitespace and formatting, enabling precise and deterministic modifications. The project utilizes a declarative refactoring pipeline where sequences of transformations are defined in YAML to resolve breaking changes and technical debt. It features type-aware pattern matching and cross-language model mapping to apply similar refactoring patterns across different programming languages. The framework
This project is a comprehensive manual and educational resource focused on the Babel compiler. It serves as a documentation guide and handbook for understanding the inner workings of JavaScript compilation, specifically regarding the transformation of source code. The material provides a technical walkthrough for developing custom plugins and extensions. It covers the process of creating tailored transformations to modify how JavaScript is parsed and generated. The content encompasses the broader JavaScript compilation workflow, focusing on abstract syntax tree manipulation, code generation,
This project is a technical handbook and tutorial guide for the Babel compiler. It serves as a resource for configuring the tool and writing custom plugins to transform JavaScript source code. The guide provides instructional material on creating custom transformation plugins and modifying the compilation process. It specifically covers how to navigate and modify abstract syntax trees to programmatically rewrite source code. The documentation covers the mechanics of code transformation, the management of compiler configurations, and the fundamentals of compiler tooling. It includes guidance
JavaPoet is a source code generator and metaprogramming utility for the Java language. It functions as an abstract syntax tree construction library that allows developers to model classes, methods, and fields as objects before emitting them as source code. The library distinguishes itself through automatic import management and code formatting. It tracks referenced types to generate required import statements and handles line wrapping, semicolon placement, and indentation to ensure generated files remain readable. The tool covers a broad range of generation capabilities, including the defini
Janino is a lightweight Java compiler and scripting engine designed to transform source code into executable bytecode directly within the application heap. It functions as a runtime compiler and class loading library, enabling the dynamic definition and execution of Java classes, methods, and expressions without requiring a full application restart. The project distinguishes itself through its ability to perform in-memory compilation and recursive descent parsing, which allows for the resolution of complex dependencies and circular references during the translation process. It provides a fram
This project is a Java annotation processing framework and source code generator designed to automate repetitive boilerplate and reduce manual coding errors. It functions as a toolkit for building custom annotation processors that produce source code, metadata, and type definitions during the compilation process. The framework specifically automates the creation of immutable value types with built-in equality and hashing logic, as well as the generation of factory implementations for dependency injection. It also handles the automated production of service provider configuration files to enab
Spotless is a multi-language formatting orchestrator and Gradle plugin that automates code styling across various programming languages within a single build pipeline. It functions as a coordinator for multiple third-party formatters, a code style linting tool, and a system for inserting and updating standardized license headers. The project distinguishes itself through git-integrated style enforcement, using pre-push hooks and git references to apply formatting only to modified files or lines. It supports shared build configurations, allowing formatting rules to be distributed and loaded acr
cppinsights is a C++ compiler visualization and static analysis tool that uses the Clang frontend to parse source code into an abstract syntax tree. It functions as a source-to-source transformer, rewriting C++ code to make implicit compiler behaviors and hidden operations explicit and visible. The tool specializes in unfolding complex language constructs, such as expanding the internal machinery of coroutines to visualize suspension and resumption logic. It also reveals the actual code generated during template instantiation and transforms implicit compiler actions, including structured bind
KotlinPoet is a Java-based API for programmatically creating and formatting Kotlin source files. It serves as a source code generator and type system mapper, providing a framework to build Kotlin code structures through a type-safe model of language elements to automate the production of boilerplate. The project utilizes a fluent-builder pattern to incrementally construct language elements and maintains an internal object-model representation that separates logical structure from final text formatting. It handles the complexities of source emission through indentation-based formatting and key
This project is a comprehensive, curated directory of static analysis, linting, and security scanning utilities. It serves as a central resource for developers to discover, compare, and select tools based on specific programming languages, licensing models, and integration requirements. The directory distinguishes itself by providing deep metadata for each listed utility, including community-driven popularity rankings, maintenance status, and deployment methods. By aggregating these tools into a single searchable index, it enables teams to identify solutions for enforcing coding standards, ma
ast-grep is a command-line utility and static analysis engine designed for searching, linting, and refactoring source code. It operates by identifying and transforming code blocks based on their underlying syntactic structure rather than relying on text-based or regular expression matching. The tool utilizes a language-agnostic abstraction to normalize diverse programming grammars into a unified tree structure. By employing a rule-driven engine, it allows users to define complex patterns that capture syntax nodes as variables, enabling consistent and syntactically valid modifications across e
Codemod is a set of software tools for performing structural source code transformations. It functions as an automated codebase migration tool that utilizes abstract syntax tree manipulations rather than simple regular expressions to execute large-scale refactors across multiple files. The project distinguishes itself through an interactive transformation interface that provides colored diffs, allowing users to manually review, accept, or modify each match. It also supports a distributed refactoring workflow, which enables the segmentation of a codebase into assigned work blocks to divide mig
Lightning CSS is a high-performance CSS toolchain implemented in Rust. It provides a comprehensive suite of tools for stylesheet processing, including a bundler, minifier, module compiler, syntax lowerer, and vendor prefixer. The engine utilizes a browser-grade grammar for parsing and converts stylesheets into typed property values. It distinguishes itself through a visitor-based transformation API that allows for custom modifications of the parsed abstract syntax tree and an error-tolerant parsing mechanism that recovers from malformed syntax to prevent build failures. The toolset covers br
Codegraph is a local codebase indexer and static analysis graph database that serves as a context provider for AI agents. It parses multiple programming languages into a searchable knowledge graph of symbols and dependencies, exposing these relationships to AI tools through the Model Context Protocol. The project distinguishes itself by aggregating relevant code snippets and symbol flows to reduce token usage for large language models. It automates the configuration of server settings and steering instructions across various AI agent platforms and command line editors to enable automatic code
UglifyJS2 is a suite of tools designed for parsing, beautifying, mangling, and minifying JavaScript code. It functions by converting source code into an abstract syntax tree to enable programmatic analysis and transformation, and it includes a dedicated generator for creating associated source maps. The project optimizes web production builds by compressing script logic and removing unreachable code. It utilizes name mangling to shorten variable and property names and implements a beautifier to reconstruct compressed scripts into a human-readable layout. The toolset covers broad capability a
PostCSS is a CSS post-processor and abstract syntax tree transformation tool that parses stylesheets into a structured tree for programmatic analysis and modification. It functions as a plugin-driven pipeline where JavaScript plugins can modify, insert, or delete nodes to transform styles. The project provides a framework for building a custom plugin ecosystem to extend the CSS language with non-standard features such as loops, conditionals, and shorthand properties. It supports multi-syntax parsing through pluggable parsers and stringifiers, allowing it to process various style formats and c
Scriban is a .NET text templating engine and embedded scripting language used for dynamic text generation. It functions as an abstract syntax tree manipulation tool and a template parser, allowing for the conversion of scripts into visitable trees for analysis, modification, and rendering. The engine is specifically designed for Native AOT compatibility, utilizing a reflection-free API to execute templates in trimmed environments. It also provides a dedicated parser and conversion system for Liquid templates, enabling the migration and execution of Liquid scripts within .NET. The project cov
This project is a framework for building, manipulating, and analyzing abstract syntax trees. It provides a toolkit for defining, traversing, and validating syntax trees that are compatible with the Mozilla Parser API, serving as a foundation for static code inspection and automated transformation tasks. The library distinguishes itself through a declarative type system that enforces structural integrity across node hierarchies. By wrapping raw syntax nodes in context-aware objects, it enables developers to track parent relationships and ancestor chains without modifying the underlying tree st
UglifyJS is a tool for JavaScript code minification, AST manipulation, and source beautification. Its primary purpose is to reduce the file size of JavaScript source code by removing whitespace and shortening variable names to optimize frontend build assets. The project differentiates itself through its ability to programmatically analyze and transform code using abstract syntax trees. It performs constant folding analysis and conditional compilation to eliminate unreachable or redundant code, and it employs a multi-pass compression pipeline to maximize total file size reduction. The tool pr
ts-morph is a TypeScript AST manipulation library and a high-level wrapper for the TypeScript compiler API. It provides a programmatic interface for analyzing, modifying, and generating TypeScript source code, serving as a tool for automated code refactoring and source code generation. The library simplifies the process of navigating and inspecting project structures by offering an object-oriented abstraction over the underlying compiler API. It allows for the programmatic transformation of existing codebases to automate structural updates and bulk code migrations. Its capabilities cover sta
syn is a Rust syntax tree parser and token stream converter. It serves as a toolkit for procedural macro development, providing a framework to parse Rust source code into structured syntax trees for analysis and transformation. The project enables the manipulation of Rust abstract syntax trees through specialized visitor and folder patterns for traversing and mutating nodes. It provides a bidirectional mapping that allows developers to convert token streams into structured trees and print those trees back into tokens for code generation. The library covers a broad range of syntax analysis ca
Babel is a pluggable JavaScript compiler and transpiler that converts modern ECMAScript syntax into backwards-compatible versions of the language. It functions as an abstract syntax tree manipulator, parsing source code into a hierarchical structure to traverse and modify nodes for custom code transformations. The system utilizes a plugin-driven architecture to apply specific transformation rules and supports presets that bundle multiple plugins into named configuration groups. This enables the transformation of experimental syntax and the injection of non-global polyfills to ensure consisten
Pkl is a configuration-as-code language used to define, validate, and generate structured configuration files. It functions as a type-safe configuration generator that enforces data integrity through a strongly-typed schema, ensuring configuration values meet defined constraints and types during evaluation. The project distinguishes itself by acting as both a configuration file generator and a binding generator. It transforms high-level programmable definitions into static formats such as JSON, YAML, or XML, and produces language-specific source code to synchronize settings and provide type s