Lebab

Features

Full Syntax Migration - Converts legacy ES5 JavaScript code into modern ES6 syntax using automated transformations for arrow functions, classes, and modules.
Code Transformation APIs - Provides a function-based API accepting source code and an array of transform names for composable modernization.
JavaScript AST Transformations - Parses JavaScript into an AST and applies structural modifications to modernize syntax.
Programmatic JavaScript Converters - Offers a programming API to apply syntax transforms by calling a function with source code and transform names.
ES5-to-ES6 Transpilers - Transforms old JavaScript code into modern ES6 syntax using configurable rules, the opposite of Babel.
Modern Syntax - Updates older JavaScript codebases to use contemporary ES6/ES7 features like let/const, template literals, and destructuring.
Source-To-Source Transpilers - Converts ES5 source code directly into ES6 source code without intermediate representations or runtime dependencies.
Configurable Transform Pipelines - Applies a sequence of independent transformation rules, each targeting a specific ES6 feature, in a configurable order.
JavaScript Syntax Modernizers - Converts ES5 patterns like var and functions into ES6 equivalents such as let, const, arrow functions, and classes.
Syntax Transformers - Applies safe and unsafe code transforms to upgrade JavaScript syntax while preserving runtime behavior.
Semantic Equivalence Heuristics - Uses heuristics to verify that unsafe transforms like let/const conversion preserve program semantics.
Editor Integration Plugins - Integrates with code editors through dedicated plugins that run syntax transformations directly on source files.
Code Transformation Editor Plugins - Ships editor-specific plugins that invoke the core transformation library via a common interface.
Code Migration Editor Plugins - Integrates with code editors to run syntax transformations directly on source files during development.
Editor-Integrated Refactoring Tools - Runs syntax modernization transforms directly within code editors through dedicated plugins for interactive development.
Safe Code Transformations - Applies strict, predictable rules to transform arrow functions and for-of loops with high confidence.
Unsafe Code Transformations - Transforms code using heuristics for let/const, classes, and modules, with caution for potential equivalence issues.
Build Tools - Tool for transpiling ES5 code to modern ES6 syntax.
Open-source projects made by Iranian developers - Listed in the “Open-source projects made by Iranian developers” section of the Github Do Not Ban Us awesome list.

Open-source alternatives to Lebab

Similar open-source projects, ranked by how many features they share with Lebab.

terser/terser
terser/terser
9,299View on GitHub
Terser is a JavaScript minifier and compressor designed to reduce file size through whitespace removal, symbol mangling, and logic optimization for ES6+. It functions as a toolkit for minification, a code mangler for shortening variable and property names, and a dead code eliminator that evaluates constant expressions to remove unreachable logic. The project operates as an AST toolkit that parses JavaScript source into SpiderMonkey AST format for structural analysis. It generates source maps to link compressed production code back to the original source, ensuring that minified bundles remain
JavaScript
View on GitHub9,299
babel/babel
babel/babel
44,009View on GitHub
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
TypeScriptastbabelcompiler
View on GitHub44,009
swc-project/swc
swc-project/swc
33,909View on GitHub
This project is a high-performance compiler written in Rust that transpiles TypeScript and ECMAScript into compatible JavaScript code. It functions as a TypeScript transpiler, a JavaScript minifier, and a JavaScript bundler. The system distinguishes itself through a WebAssembly plugin host that allows the execution of custom transformation rules without modifying the core binary. It also provides specialized compilation for React source code to improve runtime performance and reduce execution overhead. The broader capability surface includes source-to-source compilation, type annotation stri
Rustbabelcompilerecmascript
View on GitHub33,909
rollup/rollup
rollup/rollup
26,288View on GitHub
Rollup is an ES module bundler and JavaScript module transpiler. It functions as a build tool that combines JavaScript modules into optimized files and converts modern JavaScript and JSX into various output formats for different runtime environments. The project is distinguished by its static-analysis tree shaking engine, which removes unused code and dead exports to minimize bundle size. It also acts as a code splitting orchestrator, partitioning modules into separate chunks to optimize network requests and load times. The tool provides a hook-based plugin system for extending build logic,
JavaScript
View on GitHub26,288

See all 30 alternatives to Lebab

lebablebab

Features

Open-source alternatives to Lebab

terser/terser

babel/babel

swc-project/swc

rollup/rollup

Star history

Open-source alternatives to Lebab

terser/terser

babel/babel

swc-project/swc

rollup/rollup