Blogger (Blogspot)

Substack is a newsletter publishing platform that can serve as the source for exporting an email list before importing it into another email platform.

HubSpot is an American software company that develops a cloud-based platform for inbound marketing, sales, customer service, and customer relationship management (CRM). Founded in 2006, its product suite includes marketing automation, sales tools, a CRM, a service hub, a content management system, and operations tools.

Weebly is a web-hosted website builder and e-commerce platform that provides drag-and-drop site building, templates, hosting, domain registration and online store features. It was founded in 2006 and was acquired by Square (now Block, Inc.) in 2018.

Halo is an open-source website-building and content-management platform for personal blogs, knowledge bases, corporate websites, and online stores. It provides a site-management system with themes and plugins, and supports deployment with Docker or on Linux servers. The Community Edition is free and licensed under GPLv3; Professional and Store editions add features such as mobile content management, AI-assisted site creation, private deployment, and integrated e-commerce capabilities.

Squarespace, Inc. is an American software company that provides a hosted website building and hosting platform. It offers customizable templates, domain registration, e-commerce features and related tools (including optional AI-assisted site-building features).