Open source. Open possibilities.

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.

Apache Superset is a modern, enterprise-ready business intelligence web application used for data exploration and visualization.

Retentioneering is an open‑source Python toolkit that provides reproducible product analytics on clickstream and event‑log data. It offers chainable data processors, interactive Jupyter widgets, a DuckDB‑backed Eventstream, and an MCP server that lets LLM agents run and validate analyses, producing shareable HTML reports.

D3 is a free, open-source JavaScript library for visualizing data. Built on web standards with a low-level approach, it renders dynamic, data-driven graphics using SVG, Canvas and HTML, and serves as a foundation for many higher-level chart libraries.

Fit.ly is a self‑hosted web analytics platform for endurance athletes that pulls data from Strava, Oura, Withings, Stryd, Peloton, Fitbod, Nextcloud and Spotify to deliver personalized dashboards, performance metrics and music recommendations.

Netdata is an open-source, real-time infrastructure monitoring platform providing per-second metrics and automated anomaly detection with zero configuration.

Litlyx is an open-source, cookie-free analytics solution with an AI-powered dashboard. It offers a one-script install, npm package, custom events, cURL API, cloud or Docker self-hosting, and Apache 2.0 licensing.

DataEase is an open-source BI tool that supports the rapid creation of data visualization charts via drag-and-drop, helping users analyze data and gain insights into business trends.

Plotly.js is a standalone JavaScript data visualization library used to create a wide variety of interactive charts and graphs.

SYNAPSE is an AI-powered intelligence aggregation and automation platform featuring a multi-agent system and RAG capabilities for research and document generation.