Open source. Open possibilities.

Chart.js is a simple, flexible JavaScript charting library that creates HTML5 charts using the canvas tag, with v4 documentation, samples, extensions, and an MIT license.

Bast is a self-hosted web analytics project focused on privacy and simplicity, offering pageview, unique visitor, session and time-on-site stats. The README marks it as no longer maintained; the code remains available for anyone wanting to run or learn from it.

rrHog is an open-source, self-hosted web analytics and session replay platform built on rrweb, using FastAPI, NATS JetStream, ClickHouse, Postgres, and Next.js for reliable, async ingestion and fast querying.

guessit-js is a TypeScript port of Python guessit that extracts metadata (title, year, season, episode, codec, language, etc.) from media filenames. It is 100% compatible with Python guessit 4.4.0, 3.5x faster, and provides a CLI, REST API, and WASM support.

Countly Web SDK is a JavaScript analytics library for websites and web applications, enabling tracking of user behavior, events, profiles, crashes, A/B testing, performance monitoring, and feedback widgets, compatible with Countly Lite, Flex, and Enterprise platforms.

A simple, privacy-focused web analytics tool written in Go that provides essential metrics without relying on fingerprinting.

Turf is a modular geospatial engine written in JavaScript for spatial analysis, providing tools for GeoJSON data creation and statistical operations.

Build interactive, responsive dashboards with drag-and-drop widgets. Supports Angular, React, Vue, and more. Mobile-friendly with TypeScript.

Recharts is an open-source chart library for React built on D3. It offers declarative, composable chart components rendered as native SVG with minimal dependencies, installable via npm, Deno or a UMD script tag, and documented with a storybook.

SolarisPKN-Stats is an automated system for collecting, storing, and updating project statistics from multiple platforms into structured JSON files.

deck.gl is a GPU-powered visualization framework designed for high-performance rendering of large-scale data sets using WebGL2 and WebGPU.

Appsmith is an open-source low-code platform for building admin panels, internal tools and dashboards. It connects to 25+ databases and any API, and can be self-hosted via Docker, Kubernetes or AWS AMI.

A free, browser-based database entity relationship diagram (ERD) editor and SQL generator.

Aurora is a self-hosted, cookie-free web analytics application. It stores events in PostgreSQL and uses rotating HMAC visitor IDs instead of cookies, localStorage or fingerprinting. The dashboard reports traffic, acquisition, events and revenue, and can expose public read-only analytics.

An interactive analytics and data visualization component designed for large, real-time, and streaming datasets.

A lightweight, privacy‑first JavaScript/TypeScript SDK for tgram‑analytics. Zero dependencies, under 2 KB gzipped, TypeScript‑first, SPA‑ready, respects Do Not Track, supports batching and multi‑value properties.

Flarelytics is a privacy‑focused web‑analytics solution that records how long visitors stay on each page. It runs as a Cloudflare Worker backend with a PlanetScale database and a lightweight browser script. Currently supports a single domain and is intended for self‑hosted deployment.

Flarelytics is a privacy‑focused, self‑hosted web analytics service that measures how long visitors stay on each page. Built with Cloudflare Workers and a MySQL‑compatible database (MongoDB → PlanetScale), it provides a simple script for browsers and a lightweight API backend.

FlashLoanArbitrage is a Node.js bot and smart contract for DeFi flash-loan arbitrage. The README says goflash.js monitors ETH/USDC prices on Chainlink, Uniswap V2, SushiSwap, Curve and Balancer, waits for a 0.9% spread, and triggers a contract that borrows USDC, trades ETH, repays the loan and converts profit back to ETH.

LiveWebTracker is a lightweight real-time website visitor tracking solution that uses a simple JavaScript snippet and Firebase Realtime Database to display live visitor counts without requiring a complex custom backend, with easy integration and customizable on-site display options.