Open source. Open possibilities.

Radzen Blazor is a free, MIT-licensed UI component library for Blazor with 145+ native C# components, including DataGrid, Scheduler, Charts, forms and layout controls, plus 10 built-in themes with light and dark variants.

PixiJS is a high-performance 2D WebGL and WebGPU renderer for the web, designed for creating interactive graphics and cross-platform applications.

Directus wraps any SQL database with auto-generated REST and GraphQL APIs, a visual management Studio, and a native MCP server for AI agents. It supports granular permissions and self-hosting.

An open-source observability and data visualization platform used to query, visualize, and alert on metrics, logs, and traces from multiple data sources.

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.

Reflex is a library for building full-stack web applications using pure Python, eliminating the need for JavaScript for frontend development.

C3.js is an MIT-licensed, D3-based reusable chart library that enables deeper integration of charts into web applications, with official docs, an examples gallery, a full API reference, and runnable samples.

Taipy is a Python framework designed for data scientists and ML engineers to build and deploy production-ready data and AI-driven web applications without needing to learn front-end languages.

Microsoft's 10-week, 20-lesson data science curriculum for beginners, with project-based lessons, quizzes, and 50+ language translations.

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

Sigma.js is an open-source JavaScript library designed for visualizing large-scale graphs containing thousands of nodes and edges using WebGL.

Helio is a data visualization tool that transforms raw data from CSVs, SQL databases, or REST APIs into personalized dashboards using visual pipelines and AI-assisted editing.

A local, read‑only dashboard that visualizes Claude Code usage—token counts, cost estimates, sessions, tools, skills, projects, and activity patterns—by scanning ~/.claude/projects/ and serving a FastAPI‑based UI.

VectorBT is an open-source Python backtesting library that vectorizes strategy research: it packs thousands of parameter combinations into NumPy arrays and accelerates them with Numba and an optional Rust engine, plus portfolio analytics and interactive Plotly visualization.

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

A CLI tool for processing railway speed restriction data from spreadsheets and visualizing them on HTML maps.

A data research and analysis platform that enables users to import custom datasets for visualization and analysis.

Gradio is an open-source Python library for quickly building and sharing web applications for machine learning models, APIs, or any Python function without requiring web development experience.

Evidence is an open-source, code-based alternative to drag-and-drop BI tools: build fast, interactive reports with SQL and markdown, then publish or self-host the generated static site.

39 editorial diagram types as self-contained HTML+SVG for AI coding assistants like Claude Code and Codex. Brand-matched, accessible, no build step. Import from draw.io, Mermaid, or Excalidraw.