Open-source client enhancing Thunderbird with more features and bug fixes. Offers security patches and multi-row descriptions like Outlook.
- Email Client
- Free • Open Source
- Mac
- Windows
- Linux
- Flathub
- Chocolatey
+10Manage emails, calendars, contacts, and tasks with an intuitive interface. Features smart inbox, file management, and third-party app integration.
- Email Client
- Paid • Proprietary
- Mac
- Windows
- Online
- Android
- iPhone
- Android Tablet
- iPad
- Apple Watch
- Android Wear
+7An intelligent inbox that simplifies email management with AI scheduling, snippets, and automated email organization in a familiar and clean design.
- Email Client
- Freemium • Proprietary
- Online
- Gmail
- Mac
+2E-mail app with all the great features: swipes (long/short), snooze, add (multiple) attachments from the cloud, support for various e-mail services and more.
- Email Client
- Freemium • Proprietary
- Mac
- Windows
- Android
- iPhone
- iPad
- Apple Watch
+3Activepieces is an open source no-code AI automation tool. The only AI automation tool loved by both technical and non-technical users. It's super extensible code-wise and super easy UI-wise. With Activepieces, you can automate your departments (marketing, sales, HR, legal...
- Task Automation App
- Freemium • Open Source
- Mac
- Windows
- Linux
- Software as a Service (SaaS)
- Docker
ERPNext is a free and open-source integrated Enterprise Resource Planning (ERP) software developed by Frappé Technologies Pvt. Ltd. and is built on MariaDB database system using a Python based server-side framework.
- CRM System
- Freemium • Open Source
- Mac
- Linux
- Online
- Self-Hosted
- Python
+36UniStack's algorithms protect your phone numbers from getting blocked and maximize text messaging conversion.
- CRM System
- Paid • Proprietary
- Online
Free open source Zendesk & Help Scout alternative: help desk, shared mailbox, email management and analytics. FreeScout is a pure PHP8+MySQL application which can be easily deployed even on a shared hosting.
- Help Desk Platform
- Freemium • Open Source
- Mac
- Windows
- Linux
- MySQL Community Edition
- Self-Hosted
- MariaDB
- Laravel
- PHP
- Cloudron
+2Send e-mail campaigns, newsletters, manage mailing lists, all from a powerful self-hosted dashboard released as a single binary. High performance and feature packed open source app written in Golang, and backed by Postgres.
- Email Marketing Service
- Free • Open Source
- Windows
- Linux
- Self-Hosted
- FreeBSD
- NetBSD
- OpenBSD
+6Shortwave is an email app that takes the pain out of managing your inbox, making it effortless to stay organized, productive, and responsive.
- Email Client
- Freemium • Proprietary
- Online
- Android
- iPhone
- Android Tablet
- iPad
- Gmail
BatchLeads is an all-in-one platform for real estate professionals with the aim to help real estate professionals find more sellers, close more deals and maximize revenue.
- Email Marketing Service
- Paid • Proprietary
- Online
- Software as a Service (SaaS)
+2EspoCRM is an Open Source CRM (Customer Relationship Management) software that allows you to see, enter and evaluate all your company relationships regardless of the type. People, companies, projects or opportunities. Written in PHP and JavaScript.
- CRM System
- Freemium • Open Source
- Mac
- Windows
- Linux
- Self-Hosted
- JavaScript
- Software as a Service (SaaS)
- PHP
- Cloudron
+5Self-hosted email marketing software that requires no monthly subscription. Integrates with Amazon SES for affordable sending and offers lifetime updates.
- Email Marketing Service
- Paid • Proprietary
- Self-Hosted
Platform for live chat and chatbot services using AI to handle customer inquiries, provide support in multiple languages, and generate leads efficiently.
- Help Desk Platform
- Freemium • Proprietary
- Mac
- Windows
- Online
- Android
- iPhone
- Android Tablet
- iPad
- BigCommerce
- Shopify
- Software as a Service (SaaS)
- Wordpress
- WooCommerce
- PrestaShop
- Adobe Commerce
+9REI BlackBook converts more of your leads into deals and builds a predictable sales system with an all-in-one marketing and sales tool kit built for investors.
- Email Marketing Service
- Paid • Proprietary
- Online
- Android
- iPhone
+1