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Open Source Projects tagged "Hacktoberfest"

A curated collection of the best open source projects tagged "Hacktoberfest". Each listing includes a website screenshot along with a detailed review of its features.

Favicon of Super Productivity

Super Productivity

Task manager built for deep work, privacy, and focus

  • Stars

    21,490

  • Last commit

    4 days ago

  • License

    MIT
Combines task management, time tracking, Pomodoro focus sessions, and GitHub/Jira integration in a local-first app for Windows, macOS, Linux, Android, and iOS.

Open Source Alternative to:

Favicon of Monday
Monday
Favicon of Matomo

Matomo

Empower your digital strategy with actionable insights

  • Stars

    21,794

  • Last commit

    4 hours ago

  • License

    GPL-3.0
Comprehensive web analytics platform offering full data ownership, privacy protection, and customizable insights for data-driven decision making.

Open Source Alternative to:

Favicon of Google Analytics
Google Analytics
Favicon of Apache Answer

Apache Answer

Open-source Q&A platform for knowledge sharing

  • Stars

    15,655

  • Last commit

    4 days ago

  • License

    Apache-2.0
A versatile, community-driven Q&A platform that fosters collaboration and knowledge exchange within organizations and communities.

Open Source Alternative to:

Favicon of Skool
Skool
Favicon of WooCommerce

WooCommerce

Open-source ecommerce platform for WordPress

  • Stars

    10,464

  • Last commit

    7 hours ago

  • License

    GPL-2.0
Build and manage online stores with customizable features, extensions, and themes for businesses of all sizes.

Open Source Alternative to:

Favicon of Shopify
Shopify
Favicon of Organic Maps

Organic Maps

Privacy-first offline maps for hiking, cycling & navigation

  • Stars

    15,163

  • Last commit

    9 hours ago

  • License

    Apache-2.0
Free, open-source offline maps app with detailed trails, turn-by-turn navigation, and zero tracking. Perfect for hikers, cyclists, and travelers seeking privacy.

Open Source Alternative to:

Favicon of Google Maps
Google Maps
Favicon of SuperTokens

SuperTokens

Secure, customizable authentication for your applications

  • Stars

    15,270

  • Last commit

    2 days ago

  • License

    Unknown
Open-source authentication solution offering flexible, self-hosted user management with advanced features and easy integration.

Open Source Alternative to:

Favicon of Auth0
Auth0
Favicon of Notesnook

Notesnook

Zero-knowledge encrypted notes that sync across all devices

  • Stars

    14,444

  • Last commit

    4 hours ago

  • License

    GPL-3.0
End-to-end encrypted note-taking app with zero-knowledge architecture, cross-device sync, web clipper, and a self-hostable sync server.

Open Source Alternative to:

Favicon of Notion
Notion
Favicon of Portkey AI Gateway

Portkey AI Gateway

AI
Complete production stack for AI teams

  • Stars

    12,778

  • Last commit

    3 months ago

  • License

    MIT
Comprehensive AI platform with gateway, observability, guardrails, and prompt management. Access 1,600+ LLMs via unified API with enterprise-grade security.

Open Source Alternative to:

Favicon of Vercel AI Gateway
Vercel AI Gateway
Favicon of CocoIndex

CocoIndex

AI
Ultra-fast data transformation for AI with lineage

  • Stars

    11,372

  • Last commit

    2 days ago

  • License

    Apache-2.0
Open-source ETL framework built in Rust for AI workloads. Features incremental processing, data lineage, and observability tools for semantic search and RAG applications.

Open Source Alternative to:

Favicon of Pipedream
Pipedream
Favicon of AITable

AITable

Visual database for workflow automation across apps

  • Stars

    15,561

  • Last commit

    10 months ago

  • License

    AGPL-3.0
AITable.ai offers a visual database platform that simplifies workflow automation and connects to over 6,000 apps through integrations like Zapier and Make.

Open Source Alternative to:

Favicon of Airtable
Airtable
Favicon of Sink

Sink

Simple, speedy, and secure link shortener with analytics

  • Stars

    7,034

  • Last commit

    22 hours ago

  • License

    AGPL-3.0
A serverless link shortener that runs entirely on Cloudflare, offering URL compression, analytics, and customizable slugs.

Open Source Alternative to:

Favicon of TinyURL
TinyURL
Favicon of Element

Element

Secure, decentralized messaging for teams and individuals

  • Stars

    13,394

  • Last commit

    11 hours ago

  • License

    AGPL-3.0
Open-source platform for encrypted communication, file sharing, and collaboration based on the Matrix protocol.

Open Source Alternative to:

Favicon of Discord
Discord
Favicon of Ory

Ory

A certified and battle-tested identity solution

  • Stars

    13,834

  • Last commit

    23 days ago

  • License

    Apache-2.0
Ory is a certified and battle-tested identity solution backed by a large open source community and trusted by Fortune 500 companies.

Open Source Alternative to:

Favicon of Auth0
Auth0
Favicon of Checkmate

Checkmate

Beautiful open-source monitoring for modern infrastructure

  • Stars

    10,668

  • Last commit

    13 hours ago

  • License

    AGPL-3.0
Monitor servers, websites, Docker containers, and infrastructure with real-time insights, instant alerts, and powerful analytics. Self-hosted solution.

Open Source Alternative to:

Favicon of BetterStack
BetterStack
Favicon of Unleash

Unleash

Feature flags for rapid, risk-free software deployment

  • Stars

    13,747

  • Last commit

    16 hours ago

  • License

    AGPL-3.0
A powerful feature management platform enabling gradual rollouts, A/B testing, and seamless integration for continuous delivery.

Open Source Alternative to:

Favicon of LaunchDarkly
LaunchDarkly
Favicon of OceanBase

OceanBase

High-performance distributed database for all workloads

  • Stars

    10,252

  • Last commit

    9 hours ago

  • License

    Apache-2.0
Scalable, high-availability database system supporting OLTP, OLAP, and hybrid transactional/analytical processing workloads.

Open Source Alternative to:

Favicon of MongoDB
MongoDB
Favicon of Mautic

Mautic

Open source marketing automation for everyone

  • Stars

    10,372

  • Last commit

    19 hours ago

  • License

    Unknown
Mautic is a free and open source marketing automation platform that helps businesses manage leads, create campaigns, and analyze results.

Open Source Alternative to:

Favicon of Mailchimp
Mailchimp
Favicon of Wallabag

Wallabag

Save articles for later reading with complete privacy

  • Stars

    12,919

  • Last commit

    3 days ago

  • License

    MIT
Self-hosted web article archiving tool that extracts content for comfortable reading. Import from Pocket, Instapaper. Open source with API access.

Open Source Alternative to:

Favicon of Pocket
Pocket
Favicon of Papermark

Papermark

Open-source document sharing with powerful analytics

  • Stars

    8,960

  • Last commit

    3 days ago

  • License

    AGPL-3.0
Secure, customizable platform for sharing documents and tracking engagement. Perfect for sales teams, marketers, and businesses.

Open Source Alternative to:

Favicon of PandaDoc
PandaDoc
Favicon of Kaneo

Kaneo

Simple, secure project management for development teams

  • Stars

    8,424

  • Last commit

    7 hours ago

  • License

    MIT
Self-hosted project management platform with visual task management, data privacy, and complete control over customization - built by developers for developers.

Open Source Alternative to:

Favicon of Linear
Linear
Favicon of Leantime

Leantime

Goal-driven project management for all brains

  • Stars

    11,401

  • Last commit

    6 days ago

  • License

    AGPL-3.0
Open-source software designed to streamline tasks, boost productivity, and enhance collaboration for teams of all types, including those with ADHD and neurodiversity.

Open Source Alternative to:

Favicon of Monday
Monday
Favicon of Manticore Search

Manticore Search

Lightning-fast open source search engine for big data

  • Stars

    11,949

  • Last commit

    4 hours ago

  • License

    GPL-3.0
Open source search database delivering 2.83x faster performance than Elasticsearch. Features vector search, SQL interface, and full-text capabilities.

Open Source Alternative to:

Favicon of ElasticSearch
ElasticSearch
Favicon of Invoice Ninja

Invoice Ninja

Send invoices, accept payments, manage your business—all free

  • Stars

    10,012

  • Last commit

    1 day ago

  • License

    Elastic-2.0
Free invoicing software for freelancers and small businesses. Create professional invoices, track expenses, accept online payments, and manage projects without hidden fees.

Open Source Alternative to:

Favicon of Quickbooks
Quickbooks
Favicon of Ghostfolio

Ghostfolio

Track, analyze, and optimize your investments effortlessly

  • Stars

    9,162

  • Last commit

    16 hours ago

  • License

    AGPL-3.0
Open-source wealth management software for tracking stocks, ETFs, and cryptocurrencies across multiple portfolios

Open Source Alternative to:

Favicon of YNAB
YNAB
Favicon of OpenSign

OpenSign

Secure, customizable e-signatures for modern businesses

  • Stars

    6,889

  • Last commit

    2 days ago

  • License

    AGPL-3.0
A powerful, open-source e-signature solution offering customization, integration, and enhanced security for businesses of all sizes.

Open Source Alternative to:

Favicon of DocuSign
DocuSign
Favicon of Requestly

Requestly

Intercept, modify, and debug HTTP(S) requests effortlessly

  • Stars

    6,751

  • Last commit

    4 hours ago

  • License

    AGPL-3.0
A powerful browser extension and desktop app for developers to manipulate network requests, debug APIs, and improve web app testing

Open Source Alternative to:

Favicon of Postman
Postman
Favicon of Workadventure

Workadventure

Virtual office platform for engaging remote collaboration

  • Stars

    5,721

  • Last commit

    18 hours ago

  • License

    Unknown
Create customizable virtual workspaces for remote teams to interact naturally, host events, and collaborate through spontaneous conversations and scheduled meetings.

Open Source Alternative to:

Favicon of Microsoft Teams
Microsoft Teams
Favicon of Flagsmith

Flagsmith

Feature flags and remote config for rapid deployment

  • Stars

    6,524

  • Last commit

    15 hours ago

  • License

    BSD-3-Clause
Powerful feature management platform for seamless software releases, A/B testing, and personalized user experiences.

Open Source Alternative to:

Favicon of LaunchDarkly
LaunchDarkly
Favicon of UnKey

UnKey

Secure, scalable API key management for developers

  • Stars

    5,420

  • Last commit

    10 hours ago

  • License

    AGPL-3.0
Streamline API authentication with UnKey's powerful, developer-friendly platform for creating, revoking, and monitoring API keys.

Open Source Alternative to:

Favicon of Kong
Kong
Favicon of Weblate

Weblate

Continuous web-based localization for global reach

  • Stars

    6,032

  • Last commit

    7 hours ago

  • License

    GPL-3.0
Web-based continuous localization platform with version control integration, quality checks, and clean interface. Used by 2,500+ projects in 165+ countries.

Open Source Alternative to:

Favicon of Crowdin
Crowdin
Favicon of Flexprice

Flexprice

Open source metering and billing infrastructure for any pricing model

  • Stars

    4,357

  • Last commit

    20 hours ago

  • License

    AGPL-3.0
A flexible billing platform that handles usage-based metering, credit management, and subscription billing, giving developers full control over pricing models.

Open Source Alternative to:

Favicon of Stripe Billing
Stripe Billing
Favicon of Digger

Digger

Terraform automation with pull request workflows

  • Stars

    5,026

  • Last commit

    10 days ago

  • License

    MIT
Open-source CI/CD orchestrator for Terraform with pull request automation, drift detection, and enterprise-grade security. Self-hostable with private runners.

Open Source Alternative to:

Favicon of Terraform
Terraform
Favicon of Solidus

Solidus

Flexible eCommerce platform for brands that stand out

  • Stars

    5,322

  • Last commit

    2 days ago

  • License

    Unknown
Open-source eCommerce platform offering customization, scalability and enterprise-grade features for brands of all sizes

Open Source Alternative to:

Favicon of Shopify
Shopify
Favicon of useSend

useSend

Pay per email sent, not for contact storage

  • Stars

    4,619

  • Last commit

    28 days ago

  • License

    AGPL-3.0
Open source email platform for transactional and marketing emails. Self-host or use cloud service with transparent pricing - pay only for emails sent.

Open Source Alternative to:

Favicon of Resend
Resend
Favicon of Frappe Books

Frappe Books

Modern desktop accounting made simple and free

  • Stars

    4,892

  • Last commit

    3 months ago

  • License

    AGPL-3.0
A user-friendly desktop accounting software that helps businesses manage invoices, track expenses, and handle bookkeeping with a modern interface.

Open Source Alternative to:

Favicon of YNAB
YNAB
Favicon of Erxes

Erxes

Open-source growth platform for customer-centric teams

  • Stars

    4,067

  • Last commit

    5 hours ago

  • License

    AGPL-3.0
All-in-one solution for marketing, sales, and customer service. Boost engagement, streamline workflows, and drive growth.

Open Source Alternative to:

Favicon of Attio
Attio
Favicon of Flipt

Flipt

Git-native feature management for developers

  • Stars

    4,873

  • Last commit

    6 hours ago

  • License

    GPL-3.0
A feature flag platform that integrates with Git workflows, enabling developers to manage features directly in their codebase.

Open Source Alternative to:

Favicon of LaunchDarkly
LaunchDarkly
Favicon of Wakapi

Wakapi

Track coding time effortlessly, gain insights instantly

  • Stars

    4,410

  • Last commit

    12 hours ago

  • License

    MIT
Open-source, self-hosted time tracking solution for developers. Analyze coding habits, improve productivity, and visualize progress.

Open Source Alternative to:

Favicon of Clockify
Clockify
Favicon of Lychee

Lychee

Self-hosted photo management with full control

  • Stars

    4,262

  • Last commit

    15 hours ago

  • License

    MIT
Free photo management tool that runs on your server. Upload, organize, and share photos with beautiful interface, EXIF support, and complete privacy control.

Open Source Alternative to:

Favicon of Google Photos
Google Photos
Favicon of Cinny

Cinny

Secure and elegant Matrix client for seamless conversations

  • Stars

    3,853

  • Last commit

    7 days ago

  • License

    AGPL-3.0
Cinny offers a simple, elegant, and secure interface for Matrix-based conversations, protected by end-to-end encryption.

Open Source Alternative to:

Favicon of Discord
Discord
Favicon of Soketi

Soketi

Next-gen WebSockets server for real-time apps

  • Stars

    5,633

  • Last commit

    1 year ago

  • License

    AGPL-3.0
Open-source, Pusher-compatible WebSockets server that's simple, fast, and resilient for building real-time applications.

Open Source Alternative to:

Favicon of Firebase
Firebase
Favicon of LinkStack

LinkStack

Your digital identity, beautifully organized

  • Stars

    3,812

  • Last commit

    1 month ago

  • License

    AGPL-3.0
A free, open-source link management platform for creating customizable, self-hosted link pages to showcase your online presence.

Open Source Alternative to:

Favicon of LinkTree
LinkTree
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