Open source. Open possibilities.

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

FiftyOne is an open-source tool for building high-quality datasets and computer vision models. It enables users to visualize, label, evaluate, and curate visual AI data.

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.

Excelize is a pure Go library for reading and writing Microsoft Excel spreadsheets in XLAM, XLSM, XLSX, XLTM and XLTX formats. It supports Excel 2007+ files, chart and image insertion, complex spreadsheet components, and a streaming API for large worksheets.

A cross-platform, audio-reactive visualizer featuring real-time system audio capture and high-performance WebGL2 rendering.

FlowGram is an extensible workflow development framework providing built-in tools including canvas, form, variable management, and pre-built materials (like LLM, Condition, Code Editor). It enables developers to build custom AI workflow platforms with visual composition and integration capabilities.

plotly.py is an interactive, open-source, browser-based graphing library for Python, built on plotly.js. It provides 30+ chart types, works in Jupyter notebooks, standalone HTML, and Dash apps, and is MIT licensed.

Peaky Peek is a local-first, open-source audit and trust console for AI agents. It captures causal chains, verifies claims deterministically, and produces explainable trust scores with failure narratives — all running on your machine.

EasySpider (易采集) is a free visual browser automation and web scraping tool with a no‑code GUI, command‑line mode, flowchart‑style task design, looping, conditional branches, OCR, custom JS/Python, MySQL output, scheduled and parallel runs, IP pool switching, and AGPL‑3.0 license; featured at WWW 2023 with a patent and a Zhejiang University thesis.

A collection of front-end visual effect cases (Vue version) featuring over a hundred examples including CSS animations, Canvas, Three.js 3D, and AI applications, with a corresponding React version available.

Redash is a browser-based data exploration and visualization tool that allows users to query, visualize, and share data from various SQL and NoSQL sources.

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.

A cinematic Git commit replay tool for the terminal that transforms Git history into animated stories with realistic typing and syntax highlighting.

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

Kepler.gl is a high-performance, open-source geospatial analysis tool designed for the visual exploration of large-scale geolocation datasets.

PARTHA turns one repository revision into a sealed, queryable intelligence model — building architecture graphs, dependency graphs, engineering reviews, insights, documentation, and optional AI context from a single persistent snapshot with evidence and provenance.

JSON Crack is an open-source tool that turns JSON, YAML, XML and CSV into interactive graphs and trees. It formats and validates data, converts between formats, generates code and JSON Schema, runs jq and JSON path queries, and exports images, with all processing done locally.

TCRcloud is a visualization and comparison tool for Adaptive Immune Receptor Repertoire (AIRR) data, supporting both T-cell and B-cell receptor transcripts.

A collection application focused on frontend visual effects, featuring hundreds of cases including CSS animations, Canvas, Three.js 3D, and AI applications, with online demos and local setup options.