Hacktoberfest

Hacktoberfest is a month-long celebration of open source projects, their maintainers, and the entire community of contributors. Each October, open source maintainers give new contributors extra attention as they guide developers through their first pull requests on GitHub.

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EbookFoundation /free-programming-books

Sponsor

Star383k

📚 Freely available programming books

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UpdatedFeb 18, 2026
Python

TheAlgorithms /Python

Star218k

All Algorithms implemented in Python

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UpdatedFeb 2, 2026
Python

avelino /awesome-go

Sponsor

Star166k

A curated list of awesome Go frameworks, libraries and software

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UpdatedFeb 19, 2026
Go

huggingface /transformers

Star157k

🤗 Transformers: the model-definition framework for state-of-the-art machine learning models in text, vision, audio, and multimodal models, for both inference and training.

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UpdatedFeb 20, 2026
Python

excalidraw /excalidraw

Star117k

Virtual whiteboard for sketching hand-drawn like diagrams

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UpdatedFeb 19, 2026
TypeScript

axios /axios

Sponsor

Star109k

Promise based HTTP client for the browser and node.js

nodejs javascript promise http-client hacktoberfest

UpdatedFeb 19, 2026
JavaScript

microsoft /terminal

Star102k

The new Windows Terminal and the original Windows console host, all in the same place!

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UpdatedFeb 20, 2026
C++

iluwatar /java-design-patterns

Sponsor

Star93.8k

Design patterns implemented in Java

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UpdatedFeb 10, 2026
Java

florinpop17 /app-ideas

Star90.6k

A Collection of application ideas which can be used to improve your coding skills.

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UpdatedOct 11, 2025

home-assistant /core

Star84.9k

🏡 Open source home automation that puts local control and privacy first.

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UpdatedFeb 20, 2026
Python

sdmg15 /Best-websites-a-programmer-should-visit

Star75.7k

🔗 Some useful websites for programmers.

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UpdatedSep 16, 2025

swisskyrepo /PayloadsAllTheThings

Sponsor

Star75.4k

A list of useful payloads and bypass for Web Application Security and Pentest/CTF

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UpdatedFeb 16, 2026
Python

nestjs /nest

Star74.7k

A progressive Node.js framework for building efficient, scalable, and enterprise-grade server-side applications with TypeScript/JavaScript 🚀

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UpdatedFeb 20, 2026
TypeScript

Stirling-Tools /Stirling-PDF

Sponsor

Star74.4k

#1 PDF Application on GitHub that lets you edit PDFs on any device anywhere

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UpdatedFeb 20, 2026
TypeScript

sherlock-project /sherlock

Star73k

Hunt down social media accounts by username across social networks

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UpdatedFeb 20, 2026
Python

tesseract-ocr /tesseract

Star72.5k

Tesseract Open Source OCR Engine (main repository)

machine-learning ocr tesseract lstm tesseract-ocr hacktoberfest ocr-engine

UpdatedFeb 20, 2026
C++

grafana /grafana

Star72.3k

The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many more.

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