Open Source JavaScript Calendar Software

Vtiger CRM enables sales, support, and marketing teams to organize and collaborate to measurably improve customer experiences and business outcomes. Vtiger CRM also includes email, inventory, project management, and other tools, providing a complete the business management suite. Download Vtiger CRM here or sign up for a free 15-day free trial of the cloud-based application with free updates and support at https://www.vtiger.com/

Defalto CRM helps small sales and service teams manage customer relationships and daily work in one web application. Keep contacts, opportunities, quotes, invoices, projects, tasks and customer support together. Download the free open source core and run it on your own server. Defalto is developed by IT Solutions4You, with a new version published every month. Optional extensions, managed hosting, customization and professional support are available separately. Try Defalto CRM in the live demo, or download the latest ZIP package from SourceForge and follow the installation guide to install it on your server. Live demo: https://defalto.com/demo/ Installation guide: https://defalto.com/administrator-guide/installation-guide/ User guide: https://defalto.com/user-guide/ Latest release notes: https://defalto.com/blog/defalto-crm-1-9-released/

ComingNext is a calendar homescreen widget for the Symbian S60v5, Symbian^3, Symbian Anna and Symbian Belle smartphones. It sports a triple panel mode where each panel can display 4 upcoming events directly on your homescreen. The widget can easily be customized to your needs.

MintHCM is the first open-source Human Capital Management platform built AI-first: it offers native support for MCP (Model Context Protocol), letting AI agents like Claude work directly inside your HR workflows — handling scheduling, leave requests, performance review prep, and reporting through natural conversation instead of clicking through menus. Beyond AI, MintHCM covers the full employee journey - recruitment, onboarding & offboarding, time & leave management, performance reviews, and analytics with an API-first architecture you can self-host or run on MintHCM Cloud (free for teams up to 15 employees). Open source under AGPL-3.0 - audit it, extend it, own your data. Join the community on GitHub and Discord to follow development or contribute. https://discord.gg/zHu8AfCEVb

openCRX moved to https://github.com/opencrx

Features: web2.0 project- & task-management, timetracking, team organizing, resource management, calendar, interface for your clients and lots more! Content: see license.txt (file section).

NETOFFICE EIS: CRM/SRM Corporate AddressBook ; iCAL Corporate Calendar + Agenda ; eMSG MailBox Email + Fax Messagery ; DMS FileManager + Document Management ; EXTM ModExpress (modules / extra apps: financial, sales) ; CPanel administration ; Intercha