Open Source Alternatives to Popular Software
Over 1 million users replaced their proprietary tools with open source software. Discover the best alternatives and join the movement.
Built withDirstarterOpenAlternative is supported by these incredible partners and sponsors. Advertise with us
Postgres-powered backend platform for production apps
Stars
108,508Last commit
3 hours agoLicense
Apache-2.0
Provides a full backend stack built on Postgres: authentication, auto-generated APIs, edge functions, realtime subscriptions, file storage, and vector search.
Open Source Alternative to:
High-performance code editor built for speed and AI
Stars
89,340Last commit
3 hours agoLicense
GPL-3.0
A Rust-built code editor from the creators of Atom and Tree-sitter, combining native performance with multiplayer collaboration and deep AI integration.
Open Source Alternative to:
Open-source backend in a single file
Stars
60,856Last commit
4 days agoLicense
MIT
A lightweight, self-hosted backend solution with real-time database, authentication, and file storage capabilities.
Open Source Alternative to:
Open-source backend platform for rapid app development
Stars
57,141Last commit
3 hours agoLicense
BSD-3-Clause
Open-source development platform with built-in backend infrastructure, web hosting, and security features. Scale applications using your preferred programming languages.
Open Source Alternative to:
AI pair programmer that works inside your terminal
Stars
48,539Last commit
3 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:
SQLite-compatible database for scalable multi-tenant applications
Stars
17,174Last commit
2 days agoLicense
MIT
Turso provides a simple developer experience with SQLite compatibility, allowing you to build and scale multi-tenant applications with unlimited databases.
Open Source Alternative to:
Secure, customizable identity infrastructure for developers
Stars
14,880Last commit
5 hours agoLicense
AGPL-3.0
ZITADEL provides a comprehensive identity management solution with easy APIs, customizable workflows, and serverless deployment options.
Open Source Alternative to:
Secure, customizable authentication for your applications
Stars
15,287Last commit
12 hours agoLicense
Unknown
Open-source authentication solution offering flexible, self-hosted user management with advanced features and easy integration.
Open Source Alternative to:
Build full-stack apps with TypeScript and real-time sync
Stars
12,439Last commit
4 hours 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:
A certified and battle-tested identity solution
Stars
13,853Last commit
30 days agoLicense
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:
Accelerate backend development with effortless scalability
Stars
12,312Last commit
20 hours agoLicense
MPL-2.0
A powerful platform for building cloud backends, automating infrastructure, and simplifying development workflows for faster, more efficient coding.
Open Source Alternative to:
Realtime client-side database for collaborative apps
Stars
10,494Last commit
13 hours agoLicense
Apache-2.0
Instant is a database solution for building real-time and offline-enabled applications, simplifying the development of collaborative products.
Open Source Alternative to:
Serverless backend platform for modern app development
Stars
9,282Last commit
16 hours agoLicense
MIT
Fully managed backend infrastructure with built-in authentication, database, storage, and serverless functions for rapid application development.
Open Source Alternative to:
Modular auth, payments, emails, and analytics for your product
Stars
6,843Last commit
9 hours agoLicense
Unknown
Self-hostable platform combining user auth, payments, email, and analytics into modular building blocks that fit around your existing product.
Open Source Alternative to:
Build powerful backends without leaving your browser
Stars
6,835Last commit
2 years agoLicense
Apache-2.0
A low-code platform for creating robust backends, complete with a spreadsheet UI for easy data management and custom functions.
Open Source Alternative to:
Create stunning data visualizations with ease
Stars
4,047Last commit
2 days agoLicense
MIT
A powerful, open-source platform for building interactive dashboards and charts from multiple data sources without coding.
Open Source Alternative to:
Next-gen WebSockets server for real-time apps
Stars
5,634Last commit
1 year agoLicense
AGPL-3.0
Open-source, Pusher-compatible WebSockets server that's simple, fast, and resilient for building real-time applications.
Open Source Alternative to:
Feature-rich backend that runs anywhere you need it
Stars
3,752Last commit
5 months agoLicense
Apache-2.0
Lightweight Firebase alternative with database, auth, storage, and workflows. Framework-agnostic backend that integrates with NextJS, Remix, Hono and more.
Open Source Alternative to:
Local-first, offline-first no-code database platform
Stars
2,975Last commit
1 year agoLicense
AGPL-3.0
Build and manage custom databases with ease, create type-safe APIs, and develop applications quickly
Open Source Alternative to:
Managed identity and access management for any app
Stars
2,012Last commit
2 days agoLicense
Apache-2.0
Authgear is a managed IAM platform handling authentication, SSO, and user management for B2C and B2B apps, with biometrics, MFA, and zero-trust support.
Open Source Alternative to:
Cloud-native framework for infrastructure from code
Stars
2,014Last commit
7 months agoLicense
Apache-2.0
Nitric automates cloud infrastructure provisioning from your application code for AWS, GCP and Azure
Open Source Alternative to:
Bring your own cloud storage, managed in one place
Stars
371Last commit
10 months agoLicense
AGPL-3.0
Firefiles turns S3 buckets and other cloud backends into a unified file manager with browser-based previews, multi-drive support, and a clean light/dark interface.
Open Source Alternative to:
No-code platform to build AI agents and automate support
Stars
14Last commit
4 hours agoLicense
MIT
Build AI chatbots, automate customer support workflows, and connect live agents across web, WhatsApp, email, and voice with a no-code visual designer.
Open Source Alternative to:
People are looking for alternatives to...
View all alternatives
Claude Code
An agentic coding tool that runs in your terminal, reads your codebase, and executes tasks like writing features, fixing bugs, and running tests using natural language instructions.
14 alternatives
Spotify
Access millions of songs, podcasts, and playlists instantly with personalized recommendations and offline listening across all your devices.
2 alternatives
Notion
An all-in-one workspace for note-taking, project management, knowledge sharing, and collaboration across teams.
20 alternatives
Lovable
Create fully functional applications by describing your idea, with AI-powered code generation and beautiful design
3 alternatives
Wispr Flow
Flow transforms complex workflows into intelligent automation using AI-powered visual builders that connect your apps and data seamlessly.
7 alternatives
CapCut
Free video editing app that lets you create professional-quality videos with advanced editing tools, effects, and templates for social media and beyond.
5 alternatives
Trending categories
View all categoriesAI Coding Agent Orchestrators
Tools that run and coordinate multiple AI coding agents in parallel across isolated git worktrees, also known as agent harnesses or agentic dev environments.
Voice Dictation Tools
Applications that convert spoken words into text for faster writing across any application.
ERP Systems
Enterprise Resource Planning systems integrating various business functions.
AI Coding Agents
Tools that take a task or issue and carry it to completion on their own: planning, editing files, running tests, and opening pull requests.
Subscription & Billing Management Tools
Platforms for managing recurring subscriptions and complex billing models.
Scraping Platforms & SDKs
Platforms and SDKs for building web scraping solutions.
Sent – Messaging Infrastructure for Developers. One API for SMS, WhatsApp, and RCS across 190+ countries.
Sent
Docmost