Open Source Projects using Ruby
A curated collection of the 73 best open source software using Ruby. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.
Private AI chat with zero-access encryption
Stars
5,585Last commit
1 day agoLicense
GPL-3.0
AI chat assistant from Proton that stores conversations with zero-access encryption, never logs chats, and never uses your data to train models.
Open Source Alternative to:
Desktop AI agent with persistent memory across platforms
Stars
245,129Last commit
9 hours agoLicense
MIT
Cross-platform desktop agent from Nous Research that connects to Telegram, Discord, Slack, WhatsApp, and more, with persistent memory, scheduling, and isolated sandboxing.
Open Source Alternative to:
Self-hosted photo and video backup for your own server
Stars
114,040Last commit
9 hours agoLicense
AGPL-3.0
Back up, organize, search, and browse your personal photo and video library on your own server, with no third-party cloud access.
Open Source Alternative to:
Run multiple AI coding agents in parallel, side by side
Stars
67,715Last commit
9 hours agoLicense
MIT
Agent Development Environment that runs Claude Code, Codex, Gemini, and other CLI agents in parallel across isolated git worktrees, with terminals, browser, diff review, and git tools built in.
Open Source Alternative to:
Hyperextensible, Lua-powered Vim-based text editor
Stars
102,307Last commit
14 hours agoLicense
Unknown
A modernized Vim fork with built-in LSP, Lua scripting, Tree-sitter parsing, and an async plugin architecture that works the same across every platform.
Open Source Alternative to:
Open-source AI coding agent for your editor and terminal
Stars
67,942Last commit
1 day agoLicense
Apache-2.0
AI coding agent that runs inside VS Code and the terminal, supporting multi-file edits, bash execution, and any LLM provider via bring-your-own-key.
Open Source Alternative to:
Docs, whiteboards, and databases in one privacy-first workspace
Stars
72,516Last commit
19 hours agoLicense
MIT
An open-source, local-first knowledge base that merges structured docs, infinite whiteboards, databases, and AI into a single workspace for teams and creators.
Open Source Alternative to:
Unified observability for metrics, logs, traces, and more
Stars
76,732Last commit
10 hours agoLicense
AGPL-3.0
Grafana unifies metrics, logs, traces, profiles, and business data into one OpenTelemetry-native platform with AI-assisted root cause analysis and adaptive cost controls.
Open Source Alternative to:
Encrypted note-taking that syncs across all your devices
Stars
56,349Last commit
9 hours agoLicense
Unknown
Cross-platform note-taking app with end-to-end encryption, Markdown support, web clipping, and sync via Dropbox, OneDrive, or Joplin Cloud.
Open Source Alternative to:
AI pair programmer that works inside your terminal
Stars
48,934Last commit
4 months agoLicense
Apache-2.0
Terminal-based AI coding tool that lets you edit existing codebases or start new projects using LLMs like Claude, GPT, and DeepSeek.
Open Source Alternative to:
Decentralized social networking in your control
Stars
50,299Last commit
13 hours agoLicense
AGPL-3.0
A free, open-source social media platform that puts users in charge of their data and connections
Open Source Alternative to:
Cultivate vibrant online communities with ease
Stars
47,834Last commit
1 day agoLicense
GPL-2.0
A powerful, customizable platform for building and managing online forums, fostering engaging discussions and collaborative spaces.
Open Source Alternative to:
Open-source coding agent for your IDE and terminal
Stars
35,895Last commit
15 hours agoLicense
Apache-2.0
Runs source-controlled AI checks on every pull request, enforcing your engineering standards as native GitHub status checks with suggested fixes.
Open Source Alternative to:
Omnichannel customer support with a built-in AI assistant
Stars
36,766Last commit
11 hours agoLicense
MIT
Manage customer conversations across live chat, email, WhatsApp, Instagram, and more from one inbox, with an AI assistant that suggests replies and automates common questions.
Open Source Alternative to:
Track your net worth across accounts and assets
Stars
54,285Last commit
1 year agoLicense
AGPL-3.0
Personal finance tracker that consolidates accounts, investments, and assets into a single net worth dashboard with goal tracking and projections.
Open Source Alternative to:
Blazing-fast in-memory data store for modern applications
Stars
31,507Last commit
22 hours agoLicense
Unknown
Dragonfly is a high-performance, Redis-compatible in-memory data store that delivers up to 25x more throughput and 80% lower costs than legacy solutions.
Open Source Alternative to:
Organized team chat for distributed teams
Stars
25,891Last commit
3 days agoLicense
Apache-2.0
Zulip is an open-source team chat app that uses threaded conversations to keep communication organized and efficient for teams of all sizes.
Open Source Alternative to:
Secure, private photo storage and sharing solution
Stars
28,863Last commit
22 hours agoLicense
AGPL-3.0
End-to-end encrypted cloud storage for photos and videos, offering privacy, security, and seamless cross-device syncing.
Open Source Alternative to:
Private, secure video calls with no account needed
Stars
29,908Last commit
2 days agoLicense
Apache-2.0
Host encrypted video conferences directly in your browser, deploy on your own servers, or integrate into applications - all with this powerful open source platform.
Open Source Alternative to:
Cost-effective log aggregation that indexes labels, not full text
Stars
28,882Last commit
14 hours agoLicense
AGPL-3.0
Horizontally scalable, multi-tenant log aggregation system that stores and queries logs using label-based indexing instead of full-text indexing, keeping storage costs low.
Open Source Alternative to:
Spaced repetition flashcards that remember for you
Stars
30,513Last commit
13 hours agoLicense
Unknown
Flashcard app using spaced repetition to schedule reviews at the exact moment you're likely to forget, so you retain more with less study time.
Open Source Alternative to:
AI-powered DevSecOps for faster, secure software delivery
Stars
24,539Last commit
20 hours agoLicense
MIT
A comprehensive AI-powered DevSecOps platform that integrates development, security, and operations, streamlining software delivery and enhancing productivity.
Open Source Alternative to:
Run coding agents from your phone, desktop, or terminal
Stars
17,119Last commit
2 days agoLicense
Apache-2.0
Self-hosted orchestrator for coding agents like Claude Code, Codex, and Cursor, controlled from phone, desktop, web, or CLI.
Open Source Alternative to:
Infrastructure as code in your favorite language
Stars
25,679Last commit
12 hours agoLicense
Apache-2.0
Pulumi enables developers to define and manage cloud infrastructure using familiar programming languages instead of domain-specific languages.
Open Source Alternative to:
A native code editor for macOS
Stars
23,028Last commit
26 days agoLicense
MIT
A lightweight, natively built editor. Open source and free forever. Develop any project using any language at speeds like never before.
Open Source Alternative to:
Open-source crypto trading bot for market making
Stars
19,988Last commit
3 days agoLicense
Apache-2.0
Automate crypto trading strategies with a powerful, customizable platform. Connect to multiple exchanges and optimize your market making.
Open Source Alternative to:
Social media reimagined for community and connection
Stars
18,291Last commit
3 days agoLicense
MIT
A decentralized social network focused on fostering meaningful interactions and giving users control over their data and experience.
Open Source Alternative to:
Legally binding document signing for individuals and teams
Stars
18,513Last commit
7 days agoLicense
AGPL-3.0
Self-hostable e-signature platform for creating, sending, and signing PDF forms with automatic digital signatures, a REST API, and embeddable components.
Open Source Alternative to:
Task manager built for deep work, privacy, and focus
Stars
21,990Last commit
15 hours agoLicense
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:
Open source headless commerce with REST API, no platform fees, built for B2B and marketplaces
Stars
15,695Last commit
10 hours agoLicense
BSD-3-Clause
Headless eCommerce platform with REST API, TypeScript SDK, and Next.js storefront. Handle B2B, multi-vendor marketplaces, and cross-border commerce. Self-hosted, open source, zero fees.
Open Source Alternative to:
Classic, agile, or hybrid project management, self-hosted
Stars
16,092Last commit
1 day agoLicense
GPL-3.0
Full-featured project management platform with Gantt charts, agile boards, time tracking, and team collaboration. Self-host or use managed cloud hosting.
Open Source Alternative to:
Privacy-first offline maps for hiking, cycling & navigation
Stars
15,403Last commit
10 hours agoLicense
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:
Advanced terminal with modern features for Mac developers
Stars
18,048Last commit
22 hours agoLicense
GPL-2.0
Feature-rich terminal replacement for macOS with split panes, search, autocomplete, and extensive customization options for enhanced productivity.
Open Source Alternative to:
Zero-knowledge encrypted notes that sync across all devices
Stars
14,585Last commit
2 days agoLicense
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:
Centralize, transform, and stash your data
Stars
14,940Last commit
3 days agoLicense
Unknown
Logstash is a free and open server-side data processing pipeline that ingests data from multiple sources, transforms it, and sends it to your desired destination.
Open Source Alternative to:
Common layer for composing and governing AI agents
Stars
9,906Last commit
9 hours agoLicense
Apache-2.0
Meta-harness that sits above Claude Code, Codex, and other AI agents to add policy enforcement, sandboxing, and real-time collaborative sessions.
Open Source Alternative to:
Build full-stack apps with TypeScript and real-time sync
Stars
12,539Last commit
2 days agoLicense
Unknown
Open-source reactive database that keeps your web and mobile apps in sync. Write everything in TypeScript with built-in auth, cron jobs, and AI integration.
Open Source Alternative to:
Open source messaging with privacy and community focus
Stars
10,287Last commit
10 hours agoLicense
AGPL-3.0
Free, open-source instant messaging and VoIP platform with full Markdown support, voice/video calls, moderation tools, and self-hosting options for communities.
Open Source Alternative to:
Your all-in-one marketplace for digital creators and products
Stars
9,685Last commit
9 hours agoLicense
MIT
A digital marketplace platform where creators can sell digital products, from courses to software, with built-in payment processing and content delivery.
Open Source Alternative to:
Collect, organize, cite, and share research in one place
Stars
15,248Last commit
1 day agoLicense
Unknown
Reference manager that captures sources from the web, organizes them with tags and collections, and generates citations in 9,000+ styles for Word, LibreOffice, and Google Docs.
Open Source Alternative to:
Self-hosted session replay with complete data control
Stars
12,841Last commit
2 days agoLicense
AGPL-3.0
Open-source session replay and product analytics platform you can self-host for complete control over data security, privacy, and compliance.
Open Source Alternative to:
The personal finance app for everyone
Stars
9,894Last commit
23 hours agoLicense
AGPL-3.0
An all-in-one personal finance platform. Track, optimize, grow, and manage your money through every stage of life.
Open Source Alternative to:
InfluxDB – The purpose-built time series platform for high-velocity ingestion and real-time queries at scale.
c15t
Openlane
Sevalla