Awesome Oss Alternatives

High-performance, scalable time-series database designed for Industrial IoT (IIoT) scenarios

The modern link attribution platform. Loved by world-class marketing teams like Framer, Perplexity, Superhuman, Twilio, Buffer and more.

Saleor Core: the high performance, composable, headless commerce API.

AI Agents & MCPs & AI Workflow Automation • (~400 MCP servers for AI agents) • AI Automation / AI Agent with MCPs • AI Workflows & AI Agents • MCPs for AI Agents

Prefect is a workflow orchestration framework for building resilient data pipelines in Python.

Empowering People Ethically 🚀 — Matomo is hiring! Join us → https://matomo.org/jobs Matomo is the leading open-source alternative to Google Analytics, giving you complete control and built-in privacy. Easily collect, visualise, and analyse data from websites & apps. Star us on GitHub ⭐️ – Pull Requests welcome!

📊 Cube Core is open-source semantic layer for AI, BI and embedded analytics

Bitwarden infrastructure/backend (API, database, Docker, etc).

A Git-based CMS for Static Site Generators

Radix Primitives is an open-source UI component library for building high-quality, accessible design systems and web apps. Maintained by @workos.

ZincSearch . A lightweight alternative to elasticsearch that requires minimal resources, written in Go.

Open-source platform for creating safe, isolated production sandboxes for API, integration, and E2E testing.

VictoriaMetrics: fast, cost-effective monitoring solution and time series database

QuestDB is a high performance, open-source, time-series database

Open-source developer platform to power your entire infra and turn scripts into webhooks, workflows and UIs. Fastest workflow engine (13x vs Airflow). Open-source alternative to Retool and Temporal.

The Cloud-Native API Gateway and AI Gateway

Amplication brings order to the chaos of large-scale software development by creating Golden Paths for developers - streamlined workflows that drive consistency, enable high-quality code practices, simplify onboarding, and accelerate standardized delivery across teams.

An orchestration platform for the development, production, and observation of data assets.

OpenProject is the leading open source project management software.

Open source alternative to Auth0 / Firebase Auth / AWS Cognito

:file_folder: File Management Platform / Universal Data Access Layer (without FUSE)

A fully open source & end-to-end encrypted note taking alternative to Evernote.

ZITADEL - Identity infrastructure, simplified for you.

The developer platform for on-demand cloud development environments to create software faster and more securely.

Headless cloud-native authentication and identity management written in Go. Scales to a billion+ users. Replace Homegrown, Auth0, Okta, Firebase with better UX and DX. Passkeys, Social Sign In, OIDC, Magic Link, Multi-Factor Auth, SMS, SAML, TOTP, and more. Runs everywhere, runs best on Ory Network.

Open-source feature management platform

A fully open-source headless CMS that supports Markdown and Visual Editing

The Open Source DocuSign Alternative.

A glossy Matrix collaboration client for the web.

Open Source Qualtrics Alternative

Low-code platform allows you to build business apps, enables you to quickly create internal tools such as dashboard, crud app, admin panel, crm, cms, etc. Supports PostgreSQL, MySQL, Supabase, GraphQL, MongoDB, MSSQL, Rest API, Hugging Face, Redis, etc. Automate workflows with schedule or webhook. Open source Retool.

Session replay, cobrowsing and product analytics you can self-host. Best for reproducing issues and iterating on your product.

The infrastructure platform for the intelligence era

Easy to use open source fast database for search | Good alternative to Elasticsearch | Drop-in replacement for E in the ELK stack

Connect APIs, remarkably fast. Free for developers.

YugabyteDB - the cloud native distributed SQL database for mission-critical applications.

The Open Source Firebase Alternative with GraphQL.

Modern authentication, on your terms. Open source alternative to Auth0, Clerk, WorkOS, Stytch.

🫖 Status page with uptime monitoring & API monitoring as code 🫖

Visual Development for React, Vue, Svelte, Qwik, and more

Enterprise-ready zero-trust access platform built on WireGuard®.

Headless open-source eCommerce platform on top of PHP/Symfony/API Platform

Open-source headless commerce platform built with TypeScript, NestJS, React, and GraphQL

Free and open log management

🚀 The open-source alternative to Twilio.

Open-source, self-hosted CMS platform on AWS serverless (Lambda, DynamoDB, S3). TypeScript framework with multi-tenancy, lifecycle hooks, GraphQL API, and AI-assisted development via MCP server. Built for developers at large organizations.

Open Source Feature Flags, Experimentation, and Product Analytics

The personal knowledge management (PKM) tool that grows as you do!

Dolibarr ERP CRM is a modern software package to manage your company or foundation's activity (contacts, suppliers, invoices, orders, stocks, agenda, accounting, ...). it's an open source Web application (written in PHP) designed for businesses of any sizes, foundations and freelancers.

Connect Your Agents And Harnesses With Any Provider 🦚