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Hacktoberfest Repositories To Contribute To In 2025

Bobby on September 29, 2025

Hacktoberfest is nearly here again. It's the perfect time to make your first open source contribution or give some love to your favorite projects. ...
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Alois Sečkár

I invite Java enthusiasts to my Java Demos project. I want to take advantage of Hacktoberfest to implement demos and info for new JDK 25 features, but there is also a plenty of work on older JEPs if you wanna.

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Bobby

Awesome! Thanks for sharing!

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Louis Girifalco • Edited

I’m excited to share Quote.Vote for Hacktoberfest 2025!

It’s an open-source civic tech platform designed for respectful online dialogue with no ads, and no algorithms, just text-based conversation grounded in quotes and community voting.

We’ve tagged beginner-friendly issues so new contributors can dive right in. Every PR helps strengthen digital public infrastructure.

👉 Explore and contribute: github.com/orgs/QuoteVote/projects/1

Would love to see students and builders join us this October! 🌱

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Bobby

This is great! Thanks for sharing!

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Louis Girifalco

Thanks for the platform. I am new to the community and this is the first time I’ve brought in the public to contribute to our repo! The response has been unbelievable.

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Arindam Majumder

Also, Check out:

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Bobby

Nice! Thanks for sharing!

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Emir Taner

Love this list. Hacktoberfest = that magical season when fixing a typo in docs makes you feel like a 10x dev. I’ll definitely check out Diffium & Wave and maybe finally stop being ‘README-only’ contributor 😂

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Bobby

lol 😂 yes wave and diffium are awesome!

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Romain Guillemot

Working on a React + Express starter. Any help will be appreciated :)

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Bobby

nice! thanks for sharing!

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Raghu Chinnannan

I invite gaming enthusiasts to add new simple online games or improve existing ones at a2.games and you can find the repo here:
github.com/raghuchinnannan/a2.games

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Bobby

Nice! Thanks for sharing!

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Jessica Temporal

I have a GitStudyCards collection that is accepting contributions. Most issues are low-code and you can find the repo here.

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Bobby

Nice! Thanks for sharing!

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Luigi Morel

gogen - generate starter fullstack Go projects in a single command.
Happy to help first time OSS contributors!

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Bobby

awesome! thanks for sharing!

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Linghua Jin

CocoIndex is participating too!
Python / Rust, welcome any contributions!

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Bobby

This is great! Thanks for sharing!

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Soumik Mukherjee

Pg wire mock seems to be a javascript based project.

Thanks for sharing

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Bobby

Ah yes good catch! Thank you!

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amananandrai

🔗 Project Name: document-editor-with-tiptap
📝 Description: A react library Tiptap based WYSIWYG text editor
🛠️ Tech Stack: React, Typescript, HTML, CSS
🤝 Looking for: UI improvements, Adding Functionality in Editor
Repo: github.com/amananandrai/document-e...

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PriscillaTrevizan • Edited

Um convite para quem está iniciando no Open-Source e entusiastas !
REGEX GENERATOR

** Um projeto de código aberto para gerar expressões regulares (Regex) validadas a partir de critérios selecionados pelo usuário. Ideal para desenvolvedores que precisam de regex para validação de formulários, processamento de texto e muito mais.

Um facilitador para para dev, feito em js para que todos possam compreender e contribuir!


🇺🇸 English Version:
An invitation to those new to open-source and enthusiasts!
REGEX GENERATOR

** An open-source project to generate validated regular expressions (regex) based on user-selected criteria. Ideal for developers who need regex for form validation, text processing, and more.

A developer-friendly tool, built in JS so everyone can understand and contribute.

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Serplux • Edited

We invite content creators to write fresh content, SEO expert to point and fix SEO, Designers to improve the user experience and developers to improve the code quality, add new features on Serplux platform and get rewarded (swags) from Serplux.

Details listed on our blog portal.
dev.to/serplux_seo/hacktoberfest-2...

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Ana Maria | Tecnologia

Elaborei este artigo sobre minha jornada de contribuição na Hacktoberfest dev.to/anamaria/minha-jornada-de-c... e Criei um repositório colaborativo: github.com/ana-maria-silva/ia

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Divyang Chhantbar

Hey i am new to OpenSource , i wanna contribute at some nice project my tech stack is MERN and NextJs ,here's my original work :
flow-post.vercel.app/

can anyone guide me where should i start from ?

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Shravan Kumar B