Hacktoberfest: 69 Beginner-Friendly Projects You Can Contribute To

This page summarizes the projects mentioned and recommended in the original post on dev.to

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  • TypeScript

    TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

    https://github.com/microsoft/TypeScript A superset of JavaScript that compiles to clean JavaScript output.

  • Moby

    Moby Project - a collaborative project for the container ecosystem to assemble container-based systems

    https://github.com/moby/moby A collaborative project for the container ecosystem to assemble container-based systems

  • OPS

    OPS - Build and Run Open Source Unikernels. Quickly and easily build and deploy open source unikernels in tens of seconds. Deploy in any language to any cloud.

  • node

    Node.js JavaScript runtime :sparkles::turtle::rocket::sparkles:

    https://github.com/nodejs/node An open-source, cross-platform, JavaScript runtime environment. It executes JavaScript code outside of a browser.

  • rustfmt

    Format Rust code

    https://github.com/rust-lang/rustfmt A tool for formatting Rust code according to style guidelines.

  • Clippy

    A bunch of lints to catch common mistakes and improve your Rust code

    https://github.com/rust-lang/rust-clippy A bunch of lints to catch common mistakes and improve your Rust code

  • faker

    A library for generating fake data such as names, addresses, and phone numbers. (by faker-ruby)

    https://github.com/faker-ruby/faker A library for generating fake data such as names, addresses, and phone numbers.

  • JRuby

    JRuby, an implementation of Ruby on the JVM

    https://github.com/jruby/jruby An implementation of Ruby on the JVM

  • SonarQube

    Static code analysis for 29 languages.. Your projects are multi-language. So is SonarQube analysis. Find Bugs, Vulnerabilities, Security Hotspots, and Code Smells so you can release quality code every time. Get started analyzing your projects today for free.

  • hyper

    An HTTP library for Rust (by hyperium)

    https://github.com/hyperium/hyper An HTTP library for Rust

  • jabref

    Graphical Java application for managing BibTeX and biblatex (.bib) databases

    https://github.com/JabRef/jabref Graphical Java application for managing BibTeX and biblatex (.bib) databases

  • Elasticsearch

    Free and Open, Distributed, RESTful Search Engine

    https://github.com/elastic/elasticsearch Open Source, Distributed, RESTful Search Engine

  • Habitica

    A habit tracker app which treats your goals like a Role Playing Game.

    https://github.com/HabitRPG/habitica An open source habit building program which treats your life like a Role Playing Game.

  • Cypress

    Fast, easy and reliable testing for anything that runs in a browser.

    https://github.com/cypress-io/cypress Fast, easy and reliable testing for anything that runs in a browser.

  • httpexpect

    End-to-end HTTP and REST API testing for Go.

    https://github.com/gavv/httpexpect End-to-end HTTP and REST API testing for Go.

  • Scrapy

    Scrapy, a fast high-level web crawling & scraping framework for Python.

    https://github.com/scrapy/scrapy A fast high-level web crawling & scraping framework for Python.

  • Sinatra

    Classy web-development dressed in a DSL (official / canonical repo)

    https://github.com/sinatra/sinatra A classy web-development dressed in a DSL (official / canonical repo)

  • apps-android-commons

    The Wikimedia Commons Android app allows users to upload pictures from their Android phone/tablet to Wikimedia Commons

    https://github.com/commons-app/apps-android-commons The Wikimedia Commons Android app allows users to upload pictures from their Android phone/tablet to Wikimedia Commons

  • Mattermost

    Mattermost is an open source platform for secure collaboration across the entire software development lifecycle.

    https://github.com/mattermost/mattermost-server Open source Slack-alternative in Golang and React - Mattermost

  • hexagon

    Hexagon is a microservices toolkit written in Kotlin. Its purpose is to ease the building of services (Web applications, APIs or queue consumers) that run inside a cloud platform.

    https://github.com/hexagonkt/hexagon A microservices toolkit written in Kotlin.

  • matplotlib

    matplotlib: plotting with Python

    https://github.com/matplotlib/matplotlib A comprehensive library for creating static, animated, and interactive visualizations in Python.

  • strongbox

    Strongbox is an artifact repository manager. (by strongbox)

    https://github.com/strongbox/strongbox A modern OSS artifact repository manager.

  • chatwoot

    Open-source customer engagement suite, an alternative to Intercom, Zendesk, Salesforce Service Cloud etc. 🔥💬

    https://github.com/chatwoot/chatwoot Open-source live chat software, an alternative to Intercom, Zendesk, Drift, Crisp etc.

  • Pandas

    Flexible and powerful data analysis / manipulation library for Python, providing labeled data structures similar to R data.frame objects, statistical functions, and much more

    https://github.com/pandas-dev/pandas Flexible and powerful data analysis / manipulation library for Python, providing labeled data structures similar to R data.frame objects, statistical functions, and much more

  • cpalgorithms

    Algorithms and Techniques for competitive programming

    https://github.com/namanvats/cpalgorithms Algorithms and Techniques for competitive programming

  • mypy

    Optional static typing for Python

    https://github.com/python/mypy Optional static typing for Python 3 and 2 (PEP 484)

  • Data-Structures-and-Algorithms-in-cpp

    This repository is in development phase and will soon provide you with c++ code of various data structures and algorithms

    https://github.com/amritansh22/Data-Structures-and-Algorithms-in-cpp This repository is in development phase and will soon provide you with c++ code of various data structures and algorithms

  • Matomo

    Liberating Web Analytics. Star us on Github? +1. Matomo is the leading open alternative to Google Analytics that gives you full control over your data. Matomo lets you easily collect data from websites & apps and visualise this data and extract insights. Privacy is built-in. We love Pull Requests!

    https://github.com/matomo-org/matomo The leading Free/Libre open analytics platform.

  • sirix

    SirixDB is a temporal, evolutionary database system, which uses an accumulate only approach to store immutable revisions. It keeps the full history of each resource. Every commit stores a space-efficient snapshot through structural sharing. It is log-structured and never overwrites data. SirixDB uses a novel page-level versioning approach called sliding snapshot.

    https://github.com/sirixdb/sirix A temporal, evolutionary database system, which uses an accumulate only approach.

  • phpMyAdmin

    A web interface for MySQL and MariaDB

    https://github.com/phpmyadmin/phpmyadmin A web interface for MySQL and MariaDB

  • Gatsby

    Build blazing fast, modern apps and websites with React

    https://github.com/gatsbyjs/gatsby A free and open source framework based on React that helps developers build blazing fast websites and apps

  • atrium

    A multiplatform assertion library for Kotlin

    https://github.com/robstoll/atrium A multiplatform assertion library for Kotlin

  • Babel (Formerly 6to5)

    🐠 Babel is a compiler for writing next generation JavaScript.

    https://github.com/babel/babel A compiler for writing next generation JavaScript.

  • Godot

    Godot Engine – Multi-platform 2D and 3D game engine

    https://github.com/godotengine/godot Multi-platform 2D and 3D game engine

  • terraform

    Terraform enables you to safely and predictably create, change, and improve infrastructure. It is an open source tool that codifies APIs into declarative configuration files that can be shared amongst team members, treated as code, edited, reviewed, and versioned.

    https://github.com/hashicorp/terraform An open source tool that codifies APIs into declarative configuration files that can be shared amongst team members, treated as code, edited, reviewed, and versioned.

  • mocha

    ☕️ simple, flexible, fun javascript test framework for node.js & the browser

    https://github.com/mochajs/mocha A simple, flexible, fun JavaScript test framework for Node.js & The Browser.

  • opsdroid

    🤖 An open source chat-ops bot framework

    https://github.com/opsdroid/opsdroid An open source chat-ops bot framework

  • Vue.js

    🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.

    https://github.com/vuejs/vue A progressive framework for building user interfaces.

  • moment

    Parse, validate, manipulate, and display dates in javascript.

    https://github.com/moment/moment A JavaScript date library for parsing, validating, manipulating, and formatting dates.

  • responsively-app

    A modified web browser that helps in responsive web development. A web developer's must have dev-tool.

    https://github.com/responsively-org/responsively-app A modified web browser that helps in responsive web development. A web developer's must have dev-tool.

  • jest

    Delightful JavaScript Testing.

    https://github.com/facebook/jest A delightful JavaScript Testing Framework with a focus on simplicity.

  • Next.js

    The React Framework

    https://github.com/vercel/next.js The React Framework

  • react-native

    A framework for building native applications using React

    https://github.com/facebook/react-native A framework that brings React's declarative UI framework to iOS and Android.

  • SaltStack

    Software to automate the management and configuration of any infrastructure or application at scale. Get access to the Salt software package repository here:

    https://github.com/saltstack/salt Software to automate the management and configuration of any infrastructure or application at scale.

  • presto

    Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io) [Moved to: https://github.com/trinodb/trino] (by prestosql)

    https://github.com/prestosql/presto A distributed SQL query engine for big data, under the auspices of the Presto Software Foundation.

  • nushell

    A new type of shell

    https://github.com/nushell/nushell A new type of shell

  • projectm

    projectM - cross-platform music visualization. Open-source and Milkdrop-compatible

    https://github.com/projectM-visualizer/projectm A cross-platform music visualization. Open-source and Milkdrop-compatible Resources

  • Servo

    The Servo Browser Engine

    https://github.com/servo/servo The Servo Browser Engine

  • plots2

    a collaborative knowledge-exchange platform in Rails; we welcome first-time contributors! :balloon:

    https://github.com/publiclab/plots2 A collaborative knowledge-exchange platform in Rails; we welcome first-time contributors! balloon

  • tomorrow

    A small graphical calculator project. (by noidawt)

    https://github.com/noidawt/tomorrow A small graphical calculator project.

  • Visual Studio Code

    Visual Studio Code

    https://github.com/microsoft/vscode Visual Studio Code

  • Flarum Core

    Simple forum software for building great communities. (by flarum)

    https://github.com/flarum/core Simple forum software for building great communities.

  • pytest

    The pytest framework makes it easy to write small tests, yet scales to support complex functional testing

    https://github.com/pytest-dev/pytest A framework makes it easy to write small tests, yet scales to support complex functional testing

  • notebook

    Jupyter Interactive Notebook

    https://github.com/jupyter/notebook Jupyter Interactive Notebook

  • Nextcloud

    ☁️ Nextcloud server, a safe home for all your data

    https://github.com/nextcloud/server Nextcloud server, a safe home for all your data

  • Electron

    :electron: Build cross-platform desktop apps with JavaScript, HTML, and CSS

    https://github.com/electron/electron A framework lets you write cross-platform desktop applications using JavaScript, HTML and CSS.

  • Appwrite

    Appwrite is a secure end-to-end backend server for Web, Mobile, and Flutter developers that is packaged as a set of Docker containers for easy deployment 🚀

    https://github.com/appwrite/appwrite An end-to-end backend server for Web, Mobile, Native, or Backend apps packaged as a set of Docker microservices.

  • kubernetes

    Production-Grade Container Scheduling and Management

    https://github.com/kubernetes/kubernetes Production-Grade Container Scheduling and Management

  • Symfony

    The Symfony PHP framework

    https://github.com/symfony/symfony An PHP web framework

  • zerocode

    A community-developed, free, open source, microservices API automation and load testing framework built using JUnit core runners for Http REST, SOAP, Security, Database, Kafka and much more. Zerocode Open Source enables you to create, change, orchestrate and maintain your automated test cases declaratively with absolute ease.

    https://github.com/authorjapps/zerocode A community-developed, free, open source, API automation and load testing framework built using JUnit core runners for Http REST, SOAP, Security, Database, Kafka and much more.

  • Ansible

    Ansible is a radically simple IT automation platform that makes your applications and systems easier to deploy and maintain. Automate everything from code deployment to network configuration to cloud management, in a language that approaches plain English, using SSH, with no agents to install on remote systems. https://docs.ansible.com.

    https://github.com/ansible/ansible A radically simple IT automation platform that makes your applications and systems easier to deploy and maintain.

  • game-of-life

    Conway's game of life web version!

    https://github.com/TroyTae/game-of-life Conway's game of life web version!

  • PrestaShop

    PrestaShop is an Open Source e-commerce platform, committed to providing the best shopping cart experience for both merchants and customers.

    https://github.com/PrestaShop/PrestaShop A fully scalable open source ecommerce solution.

  • mitmproxy

    An interactive TLS-capable intercepting HTTP proxy for penetration testers and software developers.

    https://github.com/mitmproxy/mitmproxy An interactive TLS-capable intercepting HTTP proxy for penetration testers and software developers.

  • arviz

    Exploratory analysis of Bayesian models with Python

    https://github.com/arviz-devs/arviz Exploratory analysis of Bayesian models with Python

  • roc-toolkit

    Real-time audio streaming over the network.

    https://github.com/roc-streaming/roc-toolkit Real-time audio streaming over the network.

  • Zulip

    Zulip server and web app—powerful open source team chat

    https://github.com/zulip/zulip A powerful, open source group chat application that combines the immediacy of real-time chat with the productivity benefits of threaded conversations.

  • NumPy

    The fundamental package for scientific computing with Python.

    https://github.com/numpy/numpy The fundamental package for scientific computing with Python.

  • fastify

    Fast and low overhead web framework, for Node.js

    https://github.com/fastify/fastify Fast and low overhead web framework, for Node.js

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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