Showing 732 open source projects for "business email"

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  • 1
    OpenSign

    OpenSign

    The free & Open Source DocuSign alternative

    Welcome to OpenSign, the premier open source docusign alternative - document e-signing solution designed to provide a secure, reliable and free alternative to commercial esign platforms like DocuSign, PandaDoc, SignNow, Adobe Sign, Smartwaiver, SignRequest, HelloSign & Zoho sign. Our mission is to democratize the document signing process, making it accessible and straightforward for everyone.
    Downloads: 7 This Week
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  • 2
    FreeScout Help Desk

    FreeScout Help Desk

    Free self-hosted help desk & shared mailbox

    FreeScout is an open-source help desk and customer support system designed for small and medium-sized businesses. It provides a lightweight, self-hosted alternative to SaaS help desk solutions, allowing users to manage support tickets, track customer inquiries, and collaborate within a team. FreeScout supports multi-channel communication, including email integration and automated responses, making it a versatile tool for customer service.
    Downloads: 21 This Week
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  • 3
    Google Apps Manager

    Google Apps Manager

    Command line management for Google G Suite

    Google Apps Manager or GAM is a free and open source command line tool for Google G Suite Administrators that allows them to manage many aspects of their Google Apps Account quickly and easily. With GAM you can create and manage users, groups and domains; manage email, security and calendar settings; manage admins and organizations and many more. To use GAM Google Apps Business, Education, Partner or Government Edition is required.
    Downloads: 20 This Week
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  • 4
    NocoDB

    NocoDB

    Open Source Airtable Alternative

    NocoDB is an open source #NoCode platform that turns any database into a smart spreadsheet. It is free & self-hostable. Let your imagination be thy limit. Create unlimited grid view, gallery view, form view from your own data. Search, sort, filter columns and rows with ultra ease. Collaborate just like spreadsheets. Invite your team with fine-grained Access Control. Share views publicly and also with password protection. Build automation with you favorite apps: Microsoft Teams Slack,...
    Downloads: 59 This Week
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  • 5
    Loomio

    Loomio

    Make better decisions together

    ...No need for tedious meetings and endless email chains-- with Loomio people can participate on the web, email or mobile, in their own time. Loomio adapts to various discussion formats and styles, and offers effective polling and decision-making tools so your group can always decide your next steps fast, firmly and fairly.
    Downloads: 0 This Week
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  • 6
    Metabase

    Metabase

    The simplest, fastest way to share business intelligence and analytics

    Metabase is the easiest way to let everyone in your company access business data and analytics, learn from it and ask questions. Even if you or your colleagues have no experience in SQL, you can easily summarize and visualize your data, share it and let your team ask questions about it. Metabase creates beautiful graphs and charts, with an easy-to-use dashboard where everyone can create, organize and share exceptionally visualized data. It supports a great number of databases, including...
    Downloads: 27 This Week
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  • 7
    Invoice Ninja

    Invoice Ninja

    Free and Open Source Invoicing, Expenses & Time-Tracking

    Invoice Ninja is a free and open source invoicing, expenses and time-tracking app built with Laravel and Flutter. It offers a plethora of great features, including custom branded invoice design, recurring invoicing and auto-bill clients, real-time quote creation and custom proposals, expense reporting and so much more! Invoice Ninja is also capable of handling online payments from more than 40 payment gateways, including Stripe, PayPal and WePay. It also accepts payments using credit cards,...
    Downloads: 12 This Week
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  • 8
    EGroupware

    EGroupware

    Web based groupware server written in PHP

    EGroupware is a web-based groupware solution for enterprise collaboration and productivity. It combines project management, email, calendaring, CRM, and file sharing in one open-source platform. EGroupware is designed for medium to large organizations looking for a self-hosted alternative to Microsoft 365 or Google Workspace.
    Downloads: 1 This Week
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  • 9
    Krayin CRM

    Krayin CRM

    Free & Opensource Laravel CRM solution for SMEs and Enterprises

    Krayin CRM is a hand-tailored CRM framework built on some of the hottest open-source technologies such as Laravel (a PHP framework) and Vue.js a progressive Javascript framework. Free & Opensource Laravel CRM solution for SMEs and Enterprises for complete customer lifecycle management. We also have a forum for any type of concerns, feature requests, or discussions. Please visit: Krayin CRM Forums.
    Downloads: 3 This Week
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  • 10
    Traq

    Traq

    Project management and issue tracking system written in PHP

    Traq is a PHP-powered project management and issue-tracking system designed for multi-project and milestone-driven workflows. It supports email notifications, custom fields, and per-project permissions. Ideal for teams wanting a simple, self-hosted tool, it runs on PHP 8.1+ with MariaDB/MySQL
    Downloads: 0 This Week
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  • 11
    PassKit PHP SDK

    PassKit PHP SDK

    PHP SDK for Apple Wallet and Google Pay Membership, Loyalty, etc.

    Golang SDK for Apple Wallet and Google Pay membership, loyalty, event tickets, access cards, coupons & flights. Use the PassKit PHP gRPC SDK to issue and manage Apple Wallet and Google Pay Passes from your PHP application. Simply request your SDK credentials from the PassKit Portal. You will receive an email with your credentials on your registered email address. Follow the instructions in the email to decrypt key.pem, and then copy the .pem files into your project (in this project & for the...
    Downloads: 0 This Week
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  • 12
    Dittofeed

    Dittofeed

    Open-source customer engagement

    An open-source self-hosted alternative to marketing automation platforms like Braze and Iterable, enabling customer engagement workflows.
    Downloads: 0 This Week
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  • 13
    Ghost

    Ghost

    The world’s most popular open source headless Node.js CMS

    Ghost is a popular open source headless Node.js CMS for professional online publishing. Ghost allows writers, podcasters and other online content creators to quickly and easily set up their own sites, publish content on their own terms and deliver newsletters online. Ghost is a powerful platform that gives you complete control over design, content, delivery, experience and more. It’s got built-in SEO features, email newsletters, and works with hundreds of tools that can help speed up...
    Downloads: 6 This Week
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  • 14
    DocuSeal

    DocuSeal

    Open source DocuSign alternative

    Open source document filling and signing. DocuSeal is an open-source platform that provides secure and efficient digital document signing and processing. Create PDF forms to have them filled and signed online on any device with an easy-to-use, mobile-optimized web tool. Use embeddable code snippets to seamlessly implement the document signing workflows directly on your website or app. Build fillable document forms using our pixel-perfect HTML API, reducing the time for creating personalized...
    Downloads: 10 This Week
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  • 15
    EspoCRM

    EspoCRM

    EspoCRM – Open Source CRM Application

    EspoCRM is a flexible, open-source Customer Relationship Management (CRM) platform that allows businesses to manage customer interactions, sales pipelines, marketing activities, and support processes. It is designed to be lightweight and user-friendly, with a modern web interface and strong customization capabilities. EspoCRM supports a wide range of modules and is suitable for small to medium-sized businesses looking for a self-hosted CRM solution that can be tailored to their needs.
    Downloads: 4 This Week
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  • 16
    Request Tracker (RT)

    Request Tracker (RT)

    Request Tracker, an enterprise-grade issue tracking system

    Request Tracker is an open-source, enterprise-grade issue and ticket tracking system. It helps organizations manage workflows, customer requests, and internal project tasks efficiently.​
    Downloads: 3 This Week
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  • 17
    Gpg4win

    Gpg4win

    GnuPG for Windows

    ...Users can easily encrypt, decrypt, sign, and verify files or entire folders directly from the Windows interface, making the software suitable for everyday business use. Gpg4win emphasizes strong cryptographic defaults and compatibility with smart cards and enterprise certificate infrastructures.
    Downloads: 33 This Week
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  • 18
    Bulk Email Sender
    This application offers a comprehensive solution for managing personalized and bulk emails while emphasizing user security and convenience. The intuitive GUI and features make it suitable for users who need an all-in-one email management system.
    Downloads: 3 This Week
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  • 19
    SuiteCRM

    SuiteCRM

    SuiteCRM - Open source CRM for the world

    SuiteCRM is an open-source customer relationship management (CRM) software that serves as an alternative to proprietary CRM solutions. It offers a wide range of features for managing customer interactions, sales processes, and marketing campaigns. SuiteCRM is modular and highly customizable, making it suitable for businesses of all sizes looking to manage customer data efficiently.
    Downloads: 1 This Week
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  • 20
    Countly

    Countly

    Product analytics platform

    Understand and enhance your customers' journey on your web, mobile or desktop application through Countly. Countly is an innovative, real-time, open source mobile & web analytics platform, with rich push notifications and crash reporting tools. Countly securely processes billions of data points every day from mobile, desktop and web apps to help thousands of companies visualize their data, analyze and use it to grow their business. Countly is made up of two main parts: the server...
    Downloads: 11 This Week
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  • 21
    Zero

    Zero

    Experience email the way you want with Mail0

    Zero is an open-source AI-driven email platform that empowers users to self-host their own modern mail application while still connecting to external providers like Gmail or Outlook, offering flexibility for personal and business communication. It combines a unified inbox experience with privacy-first architecture so your email data stays under your control without third-party tracking or data harvesting.
    Downloads: 0 This Week
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  • 22
    Marketing Skills for Claude Code

    Marketing Skills for Claude Code

    Marketing skills for Claude Code and AI agents

    Marketing Skills for Claude Code is an extensive library of structured “skills” designed to empower Claude Code and similar AI coding agents to perform specialized marketing tasks with strategic depth, helping technical marketers and founders apply best practices in areas such as conversion rate optimization, SEO, analytics, copywriting, and growth engineering directly in an AI-assisted workflow. Each skill in the repository is expressed as a Markdown file that encapsulates specific...
    Downloads: 28 This Week
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  • 23
    Rallly

    Rallly

    Rallly is an open-source scheduling and collaboration tool

    Rallly is an open-source scheduling tool that helps groups find the best date to meet. Inspired by Doodle, it allows users to create polls where participants can vote on preferred dates without requiring an account. With a modern, responsive interface and built using Next.js and PostgreSQL, Rallly is lightweight, easy to self-host, and privacy-focused. It supports sending invites, customizing poll settings, and managing responses in real time.
    Downloads: 3 This Week
    Last Update:
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  • 24
    OpenSign

    OpenSign

    🔥 The free & Open Source DocuSign alternative

    The premier open source document signing solution (DocuSign alternative). Welcome to OpenSign, the premier open source docusign alternative - document e-signing solution designed to provide a secure, reliable and free alternative to commercial esign platforms like DocuSign, PandaDoc, SignNow, Adobe Sign, Smartwaiver, SignRequest, HelloSign & Zoho sign. Our mission is to democratize the document signing process, making it accessible and straightforward for everyone.
    Downloads: 13 This Week
    Last Update:
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  • 25
    SolidInvoice

    SolidInvoice

    Simple and elegant invoicing solution

    SolidInvoice is a simple open source general billing manager/ invoicing application made for small businesses and freelancers. It helps you manage clients, contacts, day-to-day billing and more so you can always get paid right and on time. SolidInvoice is capable of handling recurring invoices, quotes and estimates, as well as online payments. You can receive payments from a number of different gateways such as Paypal Express, Stripe Checkout, Be2bill and more. It also supports multiple...
    Downloads: 4 This Week
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