Top HACKTOBER GitHub Repositories & Tools (2026)

Your Friendly Open-Source Gen-AI Platform

Flagsmith is an open-source feature flag platform with remote config, experimentation, and self-hosted or cloud deployment options.

🔓 Free open-source AI text humanizer — bypass GPTZero, Turnitin & AI detectors with 16+ Languages support. 35 providers, 4 rewrite levels, 6 Writing Styles, 9 Text Purposes, 13 Tone Presets, multi-pass ninja mode. No login. Built for students & writers.

Your favorite self-hostable alternative to Google Timeline (Google Location History)

📊 The concise and progressive visualization grammar.

Stremio - Freedom to Stream

Charm experimental packages

The Symfony PHP framework

Avogadro libraries provide 3D rendering, visualization, analysis and data processing useful in computational chemistry, molecular modeling, bioinformatics, materials science, and related areas.

Zwift bridge for smart treadmills and bike/cyclette

Website for Meshery

C++ and Python support for the CUDA Quantum programming model for heterogeneous quantum-classical workflows

A simple, web based CMDB & IT Service Management tool

A minimal file upload/pastebin service.

🗂 Kanban-style project & personal management tool for Nextcloud, similar to Trello

OpenUPM - Open Source Unity Package Registry (UPM)

developers.events is a community-driven platform listing developer/tech conferences and Calls for Papers (CFPs) worldwide with a list, a calendar and a map view. It helps organizers, speakers, sponsors & attendees.

A Symbian OS/N-Gage emulator

Promise based HTTP client for the browser and node.js

Interactive architecture diagrams for codebases