JSPM

evaluate statically-analyzable expressions

Find and fix unused dependencies, exports and files in your TypeScript and JavaScript projects

Get the dependencies of a Stylus file

Chevrotain is a high performance fault tolerant javascript parsing DSL for building recursive decent parsers

Graph theory (a.k.a. network) library for analysis and visualisation

PostHog Node.js integration

a JavaScript library for performing geospatial operations with GeoJSON

turf tag module

turf triangle-grid module

convert module usage to inline expressions

A cross-browser, numerically stable algorithm to add floats accurately

Validation rule for GraphQL query complexity analysis

Density Based Clustering in JavaScript

simple scope analysis for javascript ASTs

heap analysis plugins for memlab

AFINN 165 (list of English words rated for valence) in JSON

Pa11y is your automated accessibility testing pal

memlab API

AFINN 165 (list of English words rated for valence) in JSON with added words and modifications for financial market news

Javascript least squares data fitting methods

The Static Code Analysis Tool for your HTML

Safely evaluate JavaScript (estree) expressions, sync and async.

Pa11y CI is a CI-centric accessibility test runner, built using Pa11y

Add context awareness to your apps and frameworks by safely evaluating user-defined conditional expressions. Useful for evaluating expressions in config files, prompts, key bindings, completions, templates, and many other user cases.

Create atom (⚛) representation for your application, packages and libraries

Numerical analysis in javascript

Mad metrics for your rollup bundles, know all the things

Traverser, scope tracker, and more tools for working with ESTree AST

AFINN-based sentiment analysis for Node.js

Clinic.js diagnoses your performance issues

Parsing tools that complement the @appthreat/atom project.

Easily monitor your ThreeJS performances.

Common library for the @appthreat/atom project.

JavaScript bindings for the augurs time series library.

Analyzes each PR's impact on your next.js app's bundle size and displays it using a comment

Provides module / individual file oriented AST processing for typhonjs-escomplex complexity reports.

Next generation complexity reporting for Javascript & Typescript based on the Babel parser.

Provides project oriented AST processing for typhonjs-escomplex complexity reports.

JavaScript source analysis and visualizer

Software complexity analysis of JavaScript-family abstract syntax trees.

Principal component analysis

Software complexity analysis for JavaScript projects

StringScanner performs lexical scanning operations on a string.

allow file content manipulations

Very simple module to calculate block execution time.

Easily monitor your vanilla ThreeJS app performances.

Mozilla-format AST walker for escomplex.

Traits for escomplex AST walkers.

Javascript wrapping library for escomplex.

Interpolation and extrapolation library

Analyser for Windi CSS

JavaScript library providing high performance, intuitive, and easy to use data structures for manipulating and processing structured data.

Graphql query cost analyzer. Use it to protect your GraphQL servers against DoS attacks, compute data consumption per user and limit it.

Tests whether an JavaScript AST node is likely to be a valid `require` call.

JavaScript AST XRay analysis

JavaScript library providing high performance, intuitive, and easy to use data structures for manipulating and processing structured data.

A command-line tool to collect and report code coverage of a JavaScript program

Multi language AFINN-based sentiment analysis for Node.js

Package created to analyze JavaScript literals

Parse and properties of roman numeral strings

CSS selectors complexity and performance analyzer

A Node.js module for email address analysis and validation.

Principal Components Analysis in javascript

A node/iojs library & CLI for HTML_Codesniffer

Technical indicators to run technical analysis with JavaScript / TypeScript.

MCP Glootie v3.4.56 - Minimal multi-language development toolkit. Works with all MCP clients (Claude Code, Cursor, Copilot, VSCode). Features cross-platform support, graceful AST degradation, smart caching. Optimized package size with essential tools: exe

JavaScript source analysis and visualizer

Tulip Indicators Wrapper Providing Over 100 Technical Analysis Functions

JavaScript expression parsing and evaluation.

Interpolate values on a Cardinal/Catmull-Rom spline curve

JavaScript source analysis and visualizer

Stock technical indicators and strategies in TypeScript for browser and server programs.

Generate complexity analysis reports with plato

Tool set for filtering gps data

Affine transformation estimator e.g. for multi-touch gestures and calibration

Cohort Analysis Graph with ReactJS

一个分析QQ群聊历史并生成精美报告的Koishi插件

Plotting.

Safely evaluate JavaScript (estree) expressions, sync and async.

produce a scope tree for Shift format ASTs

Grade your sites accessibility and generate a report from different WCAG levels

Perform a one-way analysis of variance.

Stylesheet analysis tool for CSS

Implementation of most popular technical stock indicators for debut environment

Nucleotide sequence manipulation and analysis library

Engineering statistics and data analysis

Functional, polymorphic API for 2D geometry types & SVG generation

Analyses reference for Camshaft Analysis library

Debug your Telegram middlewares

Platform-specific binary for Todoctor (Linux, X64)

Architecture Analyzer MCP - Detect circular dependencies, layer violations, and generate dependency graphs. Works with Claude Code, Cursor, Windsurf, Roo Code, and any MCP-compatible editor.

Frontend framework for rapid data (JSON) analysis, shareable serverless reports and dashboards

Analyze git commits and generate categories, summaries, and descriptions for each commit. Optionally generate a yearly breakdown report of your commit history.

Efficient, high-performance linear algebra library

3D voxel-based heatmap visualization library for CesiumJS

Marko Language Tools

CLI tool to analyze and report TODO comments in JavaScript and TypeScript Git repositories

Rethinking of CPU profile (collected in Node.js or Chromium browsers) analysis

Grade your site's accessibility and generate a report from different WCAG levels

Agentic DOM Intelligence - A lightweight TypeScript library for DOM analysis and manipulation, designed for web automation and AI agents

Grunt task to analyse css files and log simple metrics.

Statically analyzes ember project source for dependency trees and other information.

Dimensional analysis and unit conversions

CLI tool for Git repository analysis and data collection

Scikit-Learn for JS

A math util library

The simplest plotting API for JavaScript and TypeScript.

AI agent for analyzing git repositories

🚀 Professional development assistant with Backend Engineer Mode. Auto-starts with full functionality, no prompts, iterative problem solving. Features: AI chat orchestrator, terminal monitoring, file analysis, error correction, performance optimization. C

Principal Components Analysis in javascript

A math util library

TagoIO SDK for JavaScript in the browser and Node.js

A cosmic javascript bundler.

Flattens an array.

Simple curve-fitting algorithm

扫描 Markdown 文档，对文档进行分析，计算字数、阅读时间等数据

A math util library

Convert JSON Arrays to Pivot JSON Arrays using Crossfilter

[](https://badge.fury.io/js/ohlc)  [](https://www.jsdelivr.com/package/npm/ohlc) [![Build Status](https:

Custom TSLint rules for checking imports between packages and their folders, and generating relevant diagrams.

Statically analyzes Handlebars templates and components for dependency trees and other information.

Automatically moderate your content with Moderation API

An angularJS module for sending application telemetry to Microsoft Application Insights

A math util library

A math util library

A benchmark utility for Node.js.

A math util library

Automated security scanner for Supabase databases - detect exposed data, analyze RLS policies, and test RPC functions

A package API to run a static analysis of your module's dependencies.

A Discrete Wavelet Transform (DWT) library for the web.

Analyze large XML files and generate representative samples with identical structure.

A math util library

A math util library

Advanced SEO Analyzer

A math util library

TA-Lib C code ported to WebAssembly

Static analysis for your code

Analisís de sentimientos basados en AFINN para nodejs en español e ingles

A visualizer rollup analyzer

Pretty CSS analytics on the CLI

A math util library

Get real size of an npm package after bundled.

TypeScript version of OrderOrder - prevents jumbling of module prefixes by analyzing dependencies

A custom tslint rule to ban configurable lists of code snippets.

Levenberg Marquardt curve-fitting: minimize sum of weighted squared residuals

A fast CLI tool and library for analyzing codebase structure and token counts for LLM context management

Library for unpacking Firefox addons and extract their script contents.

AngularJS module for Microsoft Application Insights Javascript v2 SDK

C/C++ 대화형 디버깅 CLI (Linux only, no server)

Fetch and parse SEC earnings reports and other filings. Useful for financial analysis.

A technical analysis library written entirely in JavaScript/TypeScript

AI协作档案分析器 - MCP服务器，基于 Model Context Protocol 的 AI 协作档案分析服务器，专门用于分析 Bug 修复相关的聊天内容

Composable signal generators, oscillators, filters, FFT, spectrum, windowing & related DSP utils

Fast & simple lexical analyzer

Hdbscan implementation in JavaScript

A math util library

SDK for the Novolanguage Speech Analysis API

MCP server for analyzing Architectural Decision Records and project architecture

Daftar wilayah administratif Indonesia

Ultra-compact tree-sitter codebase analysis tool - maximum insight, minimal output

An elegant library for representing pitch in Western music.

A typescript Sudoku package for generating, solving (step-by-step or all), and analyzing Sudoku boards with ease. Perfect for building Sudoku games and integrating Sudoku functionality into your applications.

Multiline code search for every language. Structural code search for JavaScript, TypeScript, HTML and CSS

React Component for Keen.io Charts

Source code metrics tool.

Return ranks of each element in a 2-d array

CLI EDA for CSVs

Library for analyzing haircare product ingredients

Holt-Winters triple exponential smoothing algorithm (for time series forecasting)

A math util library

A project management set of tools designed around require.js that includes tools to analyze all your javascript files and perform refactoring on them.

Small math function library

CLI tool for analyzing API usage and field usage in TypeScript codebases

Fortnite replay analysis tool (Node.js用Fortniteリプレイ解析バイナリラッパー)

Transducers for statistical / technical analysis

Node binding for the Gist Audio Analysis Library

Official Expo Config Plugin for integrating the Poilabs Analysis SDK

Babel parser to analyze performance of JavaScript code

A library to find unclosed html5 tags, that are normally optional.

A plug in for plot: The simplest plotting API for JavaScript and TypeScript.

Problem reporting and comprehensive generation analysis for ts-for-gir

A plug in for plot: The simplest plotting API for JavaScript and TypeScript.

MCP server that executes JavaScript code for data analysis with support for JSON, CSV, and TSV formats

Superset UI

MACH architectural principles assessment tool for microservices

Node.js security CLI

CLI tool to analyze technologies used on websites via unbuilt.app

LLM context manager with method-level filtering, token optimization, and GitIngest format support

Enhanced dependency analysis CLI tool with 99%+ accuracy - AST-based TypeScript/JavaScript dependency analyzer

AI and integration for nodots-backgammon using the @nodots-llc/gnubg-hints native addon.

Pagean is a web page analysis tool designed to automate tests requiring web pages to be loaded in a browser window (e.g. horizontal scrollbar, console errors)

Analysis tool for JavaScript

A math util library

MCP server for WordPress.org plugin analysis and comparison

A math util library

A thin wrapper around the Web Audio API that lets you take some audio and get its waveform/frequency data in return.

MCP server for analyzing Jira sprint issues with worklog interpretation errors and Story Points achievement rate and worlogs manipulation

AWS CDK security and cost analysis tool with AI-powered insights

Node-RED added node functions.

A universal SDK for analytics and logging.

A math util library

MCP server for analyzing software UI screenshots using Google Gemini API with support for multiple models including gemini-2.0-flash

A tool to perform benchmarks on TS

Resample (inter-convert) trade, ticks or OHLCV data to different time frames, includes CLI

Bundle analyzer and visualizer tool for Vite

Image color & feature analysis utilities

JavaScript source analysis and visualizer, based on es6-plato

A math util library

Automatically analyze and manage pull requests on GitHub.

Lindera WASM with Japanese dictionary (IPADIC)

Trustify :: Dependency Analytics :: API

AI协作档案分析器 - MCP服务器，基于 Model Context Protocol 的 AI 协作档案分析服务器，专门用于分析 Bug 修复相关的聊天内容

Update object

Quality checker for projects for browser js and Node.js, can be integrated in build process of Page, also can be as stand alone application.

A math util library

A tool for analyzing and visualizing your git history. Based on ideas from 'Your Code as a Crime Scene' by Andrew M. Sutton.

CLI tool for React component development and debugging

Analyzes your code metric reports and will parse the results into Galaxy

stock ta analysis

MCP Server for audio transcription and meeting analysis using OpenAI Whisper

Declarative, functional & multi-format data visualization toolkit based around @thi.ng/hiccup

Superset UI

[](https://travis-ci.org/HelikarLab/ccNetViz) [](https://www.gnu.org/licenses/gpl-3.0) [![semantic-releas

CLI for SNAP data, which is a collection of more than 50 large networks.

Software complexity analysis for CoffeeScript projects. CoffeeScript-specific wrapper around escomplex.

Very compact and simple to use sentiment analysis lib

OHLCV Candlestick converter and batcher with Typescript support

TA-Lib C code ported to WebAssembly

Analyze Claude Code conversation costs with interactive visualizations

A math util library

Select from object/array

CLI tool for iOS app analysis and reporting

Core Test Impact Analysis engine

Generate interactive, beautiful and insightful chat analysis reports

A JavaScript complexity analysis gulp task

CLI tool for continuous performance monitoring and analysis

OnboardGPT CLI for repository analysis and onboarding

ClosedLoop AI CLI - AI-powered customer product feedback analysis tool

VineGuard PRD Scanner - Analyzes requirements documents and extracts user stories

hjk

CLI tool for web feature compatibility analysis using Baseline data

AI-powered document analysis CLI with beautiful visualizations

Count CSS selectors, declarations and rules in CSS files.

A CSS complexity linter, based on css-analyzer.

Multilanguage AFINN-based sentiment analysis for Node.js

Return ranks of each element in a 2-d array

A JavaScript-based name analyzer for all javascript developers in the world.

Platform-specific binary for Todoctor (Darwin, ARM64)

Programmatic video pose analysis: upload, process, and fetch outputs.

High-performance webpage quality analyzer with 115 comprehensive metrics - Rust library with WASM, C++, and Python bindings