Top CHART GitHub Repositories & Tools (2026)

Generation of diagrams like flowcharts or sequence diagrams from text in a similar manner as markdown

Open Source Algo Trading Platform for Everyone

React Flow | Svelte Flow - Powerful open source libraries for building node-based UIs with React (https://reactflow.dev) or Svelte (https://svelteflow.dev). Ready out-of-the-box and infinitely customizable.

Production-grade charts built for brokers, exchanges, trading platforms, and financial portals. Bring your own market data, plug it in, and deliver a complete charting experience without building the charting stack from scratch. Open source. Data-agnostic. Ready to integrate.

Self-improving AI Employees turning LLM tokens into work and dollars.

Go language library for reading and writing Microsoft Excel™ (XLAM / XLSM / XLSX / XLTM / XLTX) spreadsheets

Fast macOS disk-usage analyzer with an interactive sunburst chart — scans a full drive in seconds.

Radzen Blazor is the most sophisticated free UI component library for Blazor, featuring 145+ native components including DataGrid, Scheduler, Charts, and advanced theming with full support for Material Design and Fluent UI. If Radzen Blazor is useful to you, a ⭐ on GitHub helps other Blazor developers find it.

A powerful 🚀 Android chart view / graph view library, supporting line- bar- pie- radar- bubble- and candlestick charts as well as scaling, panning and animations.

Business intelligence made simple

VTable is not just a high-performance multidimensional data analysis table, but also a grid artist that creates art between rows and columns.

Database Reporting Tool and Tasks (.Net)

👾 AI-native Visual Analytics framework build for agents.

Official GanttProject repository.

Element Server Suite Community Edition

First-class support for Consul Service Mesh on Kubernetes

Apex Charts integration for Filament PHP.

Typeface for rendering waveform/data

🟢 Charts for Jetpack Compose — Multiplatform (Android · iOS · Web · Desktop)

Font for rendering line chart data