List of Top Free Open Source & Self Hosted Application for Blogging Platforms

A blog is a discussion or informational website consisting of discrete, diary-style text entries (posts).

Antville – Free, open source project aimed at the development of a high performance, feature rich weblog hosting software. Apache-2.0 Javascript
Blog – Facebook-styled blog. Free, extremely lightweight, single-user and easy to install. GPL-3.0 PHP
Castopod – A podcast management hosting platform that includes the latest podcast 2.0 standards, an automated Fediverse feed, analytics, an embeddable player, and more. AGPL-3.0 PHP
Chyrp Lite – Extra-awesome, extra-lightweight blog engine. BSD-3-Clause PHP
Dotclear – Take control over your blog. GPL-2.0 PHP
FlatPress – A lightweight, easy-to-set-up flat-file blogging engine. GPL-2.0 PHP
Ghost – Just a blogging platform. MIT Nodejs
Haven – Private blogging system with markdown editing and built in RSS reader. (Demo, Source Code) MIT Ruby
htmly – Databaseless Blogging Platform (Flat-File Blog). (Demo, Source Code) GPL-2.0 PHP
Known – A collaborative social publishing platform. Apache-2.0 PHP
PluXml – XML-based blog/CMS platform. GPL-3.0 PHP
Serendipity – Serendipity (s9y) is a highly extensible and customizable PHP blog engine using Smarty templating. BSD-3-Clause PHP
WriteFreely – Writing software for starting a minimalist, federated blog — or an entire community. AGPL-3.0 Go