All Open Source Apps
Browse our complete collection of vetted open-source alternatives to expensive SaaS tools
Trending Apps
Docker (Moby)
Devops · Developer Tools
The open-source container engine at the heart of Docker — a modular toolkit of runtime, build, and networking components for assembling container-based systems.
Docker (Moby)
Apache 2.0TDengine
Databases
A high-performance, open-source time-series database built in C for IoT, connected vehicles, and industrial monitoring workloads, with built-in stream processing, caching, and data subscription.
TDengine
AGPL 3.0Kibana
Analytics · Monitoring
Your open source window into the Elastic Stack — query, visualize, and act on data stored in Elasticsearch with real-time dashboards, AI-assisted search, and automated alerting.
Kibana
Otherswagger-ui
Developer Tools
Transform OpenAPI specifications into interactive, browser-based API documentation that developers and consumers can explore and test live.
swagger-ui
Apache 2.0MLflow
AI Development · Monitoring
The open source AI engineering platform for debugging, evaluating, monitoring, and optimizing production LLMs and agents at scale.
MLflow
Apache 2.0Parse Server
Developer Tools · Databases
Self-hosted Backend-as-a-Service for Node.js with REST, GraphQL, real-time Live Query, cloud code, and pluggable adapters for any infrastructure.
Parse Server
Apache 2.0NodeBB
Community
Modern Node.js forum software with real-time WebSockets, multi-database support, and a plugin ecosystem — the community platform built for the open web and the Fediverse.
NodeBB
GPL 3.0Mautic
Automation · Marketing · Ecommerce
The world's largest open source marketing automation platform — own your data, run multi-channel campaigns, and escape vendor lock-in forever.
Mautic
OtherUmbraco CMS
CMS
The friendly open-source .NET CMS that gives developers full control over content, structure, and delivery without lock-in.
Umbraco CMS
MITGhost
CMS · Blogging
Open source headless Node.js CMS for professional publishing, paid memberships, and newsletters with a fully owned audience.
Ghost
MITGogs
Developer Tools
The painless self-hosted Git service that runs on anything from a Raspberry Pi to a $5 cloud droplet, delivering GitHub-like workflows as a single Go binary.
Gogs
MITRocket.Chat
Team Chat
The secure, self-hosted team communications platform for organizations that cannot compromise on data sovereignty.
Rocket.Chat
OtherTiDB
Databases · AI Development
AI-Native Distributed SQL Database for Agentic Workloads
TiDB
Apache 2.0Mattermost
Team Chat · Collaboration · Devops
Open core, self-hosted team collaboration with chat, AI agents, voice calling, and deep DevOps integrations — all under your control.
Mattermost
OtherERPNext
ERP · Invoicing Finance
100% free, open-source ERP unifying accounting, manufacturing, inventory, CRM, HR, and POS in a single self-hostable platform.
