This is a small category and it is better to be honest about why. Two applications sit here: Serendipity, a classic self-hosted blogging platform, and GNU social, which is federated microblogging rather than a blog engine at all. Nearly everything else in self-hosted blogging went to WordPress, which W3Techs measured at 40.7% of all websites on 22 August 2026. If you are starting a new blog and have no attachment to either name below, install WordPress from the same one-click list and skip the rest of this page.
Serendipity is still worth knowing about. It is a small, BSD-licensed PHP blogging engine that has been going since 2002 and still ships: version 2.6.1 landed on 22 July 2026. It does categories, comments, RSS, plugins and templates, in a fraction of the code and database that a modern CMS carries around. For a site whose job is publishing text and photographs, that lightness is the feature rather than a limitation.
The hosted alternatives price differently rather than cheaper. Ghost(Pro) starts at $18 a month billed yearly for up to 1,000 members. Substack charges nothing up front and takes 10% of paid subscription revenue, with Stripe's fees on top of that. Medium owns both the presentation and the distribution. Self-hosting costs a hosting plan and the update work, and leaves the archive, the mailing list and the domain reputation in your hands.