Open source. Open possibilities.

ChartDB is an open-source, web-based database diagram editor that lets you visualize schemas instantly with a single query. No installation or password needed. Supports multiple databases and AI-powered SQL export.

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

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.

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.

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.

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.

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

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.

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.

An interactive visual learning platform designed to make algorithms and data structures easy to understand through step-by-step animations, custom inputs, and playback controls.

A comprehensive curated collection of tools and recipes for Go projects, covering testing, dependencies, visualization, and static analysis.