Cal.com (formerly Calendso) is the open source Calendly alternative.

experts Open Source

The ERP Software that helps you take full control of your business. ERPNext is both powerful and easy to use.

experts Open Source

Mastodon is a decentralized, open source social network. This is just one part of the network, run by the main developers of the project It is not focused on any particular niche interest - everyone is welcome!

experts

Simple, trustworthy website analytics (finally).

experts Open Source $14.0 / Monthly (100,000 Pageviews)

The managed cloud solution of the popular open-source Dependency-Track scans your software components for vulnerabilities and licenses compliance issues.

experts freemium $4.2 / Monthly (From per users)

An open-source RHEL fork built by the team at CloudLinux, inspired by the community.

nominated Open Source

Open-source AI chatbot / agent builder.

experts Open Source freemium

Matomo is an open-source web analytics platform.

nominated Open Source

Uptrace is an open source APM tool that supports distributed tracing, metrics, and logs. You can use it to monitor applications and set up automatic alerts to receive notifications via email, Slack, Telegram, and more.

experts Open Source freemium $30.0 / Monthly

A frontend Framework for building B2B applications running in the browser on top of REST/GraphQL APIs, using ES6, React and Material Design.

nominated Open Source freemium €135.0 / Monthly

A/B Testing & Effortless Feature Flags for Next.js.

experts Open Source

Apache Camel is a versatile open-source integration framework based on known enterprise integration patterns.

experts Open Source

The Linux kernel is the operating system kernel used by the Linux family of Unix-like operating...

nominated Open Source

The ultimate cloud database for tomorrow’s applications.

experts Open Source

ReactOS is a free, modern operating system in alpha stage, based on the design of Windows XP/2003.

experts Open Source

Open source no-code database and Airtable alternative. Create your own online database without technical experience. Performant with high volumes of data, can be self hosted and supports plugins.

experts Open Source freemium

Security Building Blocks for the AI era! AI Security - LLM Vault, Authentication - SAML/OIDC SSO, Directory Sync (SCIM 2.0), Audit Logs, Data Privacy Vault, and more!

experts Open Source free $49.0 / Monthly (Per connection)

Discover Open Source Alternatives to Popular Software.

experts Open Source

Understand the story behind your customer clicks and scrolls.

experts Open Source paid Free Trial $5.0 / Monthly (10000 events per month, up to 50 websites)

Ubuntu is a Debian Linux-based open source operating system for desktop computers.

nominated Open Source