freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.
- learn-to-code
- nonprofits
- programming
- nodejs
Repository Index
47,133 repositories indexed
1–24 of 165 · Most stars
The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many more.
Apache ECharts is a powerful, interactive charting and data visualization library for browser
- echarts
- data-visualization
- charts
- charting-library
The HTML5 Creation Engine: Create beautiful digital content with the fastest, most flexible 2D WebGL renderer.
- canvas2d
- pixijs
- javascript
- webgl
30 days of JavaScript programming challenge is a step-by-step guide to learn JavaScript programming language in 30 days. This challenge may take more than 100 days, please just follow your own pace. These videos may help too: https://www.youtube.com/channel/UC7PNRuno1rzYPb1xLa4yktw
✨ Innovative and open-source visualization application that transforms various data formats, such as JSON, YAML, XML and CSV into interactive graphs.
- json
- tool
- react
- visualization
An Open Source implementation of Notebook LM with more flexibility and features
- assistant
- learning
- note-taking
- notebook
:hedgehog: PostHog is the leading platform for building self-driving products. Our developer tools – AI observability, analytics, session replay, flags, experiments, error tracking, logs, and more – capture all the context agents need to diagnose problems, uncover opportunities, and ship fixes. Steer it all from Slack, web, desktop, or the MCP.
Umami is a privacy-first web and product analytics platform. Traffic, campaigns, behavior, conversions, and revenue in one place. No cookies, no surveillance, self-hosted or in the cloud.
- analytics
- charts
- statistics
- google-analytics
The flexible backend for all your projects 🐰 Turn your DB into a headless CMS, admin panels, or apps with a custom UI, instant APIs, auth & more.
Build your personal knowledge base with Trilium Notes
- knowledge-graph
- note-taking
- notebook
- knowledge-base
🪢 Open source agent evals & observability: Trace, evaluate, and improve LLM applications with one open platform.
Make Your Company Data Driven. Connect to any data source, easily visualize, dashboard and share your data.
- redash
- python
- visualization
- analytics
Label Studio is a multi-type data labeling and annotation tool with standardized output format
- computer-vision
- deep-learning
- image-annotation
- annotation-tool
Redefined chart library built with React and D3
Database diagrams editor that allows you to visualize and design your DB with a single query.
Open source observability platform for logs, metrics, traces, RUM (web, android, ios), Session replay, pipelines, SLO and LLM observability. A sophisticated, simple and highly performant alternative to Datadog, Splunk, and Elasticsearch with 140x lower storage costs and single binary deployment.
🐯 visx | visualization components
Interactive Data Visualization in the browser, from Python
- bokeh
- python
- interactive-plots
- javascript
Visualize Your Ideas With Code
- animation
- presentation
- visualization
Performant financial charts built with HTML5 canvas
- financial-charting-library
- charting-library
- html5-charts
- canvas
This open-source curriculum introduces the fundamentals of Model Context Protocol (MCP) through real-world, cross-language examples in .NET, Java, TypeScript, JavaScript, Rust and Python. Designed for developers, it focuses on practical techniques for building modular, scalable, and secure AI workflows from session setup to service orchestration.
- csharp
- java
- javascript
- mcp
A hands-on introduction to video technology: image, video, codec (av1, vp9, h265) and more (ffmpeg encoding). Translations: 🇺🇸 🇨🇳 🇯🇵 🇮🇹 🇰🇷 🇷🇺 🇧🇷 🇪🇸
WeFlow - 一个本地的微信聊天记录导出和年度报告应用
- annual-report
- data-analysis
- data-visualization
- message