Open-source projects tagged “open-source”

Twenty

A modern open-source CRM you can self-host and extend through its API.

Cal.diy

The open-source community edition of Cal.com: a scheduling and booking-page tool you can self-host. It is MIT licensed; Cal.com itself has been closed source since April 2026.

Payload

A TypeScript CMS and application framework that runs inside Next.js and generates an admin panel and APIs from one config.

Nextcloud

A self-hosted file sync and sharing platform with an app store for calendar, contacts, mail and chat.

Langfuse

An open-source platform for tracing, evaluating and managing prompts for LLM applications.

An observability platform built on OpenTelemetry that combines logs, metrics, traces, alerts and dashboards in one place.

Bagisto

An open-source Laravel and Vue.js e-commerce platform for single stores, B2B shops and multi-vendor marketplaces.

Docmost

An open-source collaborative wiki and documentation tool with real-time editing, spaces, groups and page history.

Formbricks

An open-source survey and feedback tool for in-product and link surveys that you can self-host.

Mautic

An open-source marketing automation platform for email campaigns, landing pages, lead scoring and multichannel messaging that you host yourself.

Frappe HR

An open-source HR and payroll system covering employee records, leave, attendance, expenses, appraisals and payroll, built on the Frappe Framework.

OpnForm

An open-source form builder with a no-code editor, embeds, integrations and a hosted cloud or a Docker self-hosted option.

EspoCRM

A self-hosted CRM for managing leads, contacts, sales opportunities, marketing campaigns and support cases, with a PHP REST backend and a single-page web frontend.

OrangeHRM

A web-based HR management system covering employee records, leave, time, recruitment and performance, offered as a free open-source Starter edition and paid Advanced edition.