Top INDEX GitHub Repositories & Tools (2026)

LlamaIndex is the document processing platform for AI

API Support for your favorite torrent trackers

The trust-minimized, zero-knowledge bridging protocol, designed for censorship resistance, extremely high security, and usage in decentralized finance.

Ready-to-run cloud templates for RAG, AI pipelines, and enterprise search with live data. 🐳Docker-friendly.⚡Always in sync with Sharepoint, Google Drive, S3, Kafka, PostgreSQL, real-time data APIs, and more.

Free, simple, and intuitive online database diagram editor and SQL generator.

The AI-Native Search Database. Best for agent storage, it unifies vector, text, structured, and semi-structured data into a single engine. This all-in-one database makes agents smarter, easier to run, and more stable.

Apache Lucene.NET is an open-source full-text search library written in C#, ported from the Apache Lucene project.

LLPhant - A comprehensive PHP Generative AI Framework using OpenAI GPT 4. Inspired by Langchain

Local-first 3-in-1 AI memory layer & MCP server for Claude Code, Codex, Grok, Gemini, VS Code and Cursor. Fuses session history, codebase indexing & concept graphs in SQLite. Enables zero-cloud, privacy-first context & instant recall, supports multi-agent swarms.

vsag is a vector indexing library used for similarity search.

🥽 VR Sleeping Utilities

Laravel based usenet indexer

C# .NET 10 Blazor habit tracker application. Works on Web, Windows, Linux, Android, iOS and macOS.

Modular framework for creating selective indexers and featureful backends for dapps

pg-index-health is an embeddable schema linter for PostgreSQL that detects common anti-patterns and promotes best practices.

Low latency indexer service for blockchain data.

Katalog is an application to manage catalogs of disks and files to search and get statistics.

Open source Canva with CLI/GUI, AI Agent, MCP for App Store and Play Store screenshots. Free alternative to AppScreens, AppLaunchpad and Previewed

A queryable second brain over your scattered notes and docs - hybrid retrieval (vector + BM25), section-level citations, and an MCP server so AI agents can use it. ~300 lines, no LangChain.

Semrush SEO AI-powered analysis tool MCP server & CLI for keyword research, domain analytics, backlink analysis