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s9y/Serendipity

A PHP-powered blog engine with an editor, media library, themes, plugins and built-in anti-spam for self-hosted blogs.

Open-source alternative to:WordPress

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229
Forks
93
Open issues
38
Last commit
2 months ago

What is it?

Serendipity is a self-hosted weblog engine written in PHP. It gives writers a backend for composing entries, managing categories, uploading images and other media, and selecting from a set of themes. Users and groups can be managed, and trackbacks, pingbacks and anti-spam measures are included.

The default installation targets casual bloggers, while plugins extend it toward more complex sites. Plugins are installed from the backend plugin interface, and they can add static pages for a small CMS, tags alongside categories, or Markdown and Textile markup. The project runs on PHP 8.0 or later with MySQL/MariaDB, PostgreSQL or SQLite as the database.

Installation means uploading the files from a release archive to a web root and opening the URL to run the installer. Most shared hosts already provide the required stack.

Key features

  • 01Browser-based editor for writing and publishing blog entries
  • 02Media library for uploading images, videos and other files
  • 03Integrated anti-spam measures and support for trackbacks and pingbacks
  • 04Selectable themes and a backend plugin manager
  • 05Groups and user management
  • 06Supports MySQL/MariaDB, PostgreSQL and SQLite

Use cases

  • Running a personal or hobby blog on a standard PHP web host
  • Building a small site with static pages using the static-page plugin
  • Operating a multi-author blog with user groups and categories

Quick start

  1. 1

    Download a release archive from the releases page

  2. 2

    Install PHP 8.0 or newer with MySQL/MariaDB, PostgreSQL or SQLite, and Apache

  3. 3

    Upload the files to your webroot and visit your URL to start the installer

Things to know

  • Requires a self-hosted PHP server with a database and Apache, so you must set up hosting yourself.

In collections

Self-hosted appsDatabases & SQL tools

Topics

#blog#php#self-hosted#cms#mysql#postgresql#sqlite#blog-engine#mysqli#serendipity

FAQ

What is Serendipity?
A PHP-powered blog engine with an editor, media library, themes, plugins and built-in anti-spam for self-hosted blogs. Serendipity is a self-hosted weblog engine written in PHP. It gives writers a backend for composing entries, managing categories, uploading images and other media, and selecting from a set of themes. Users and groups can be managed, and trackbacks, pingbacks and anti-spam measures are included.
Is Serendipity free to use? What license does it have?
Serendipity is open source under the BSD-3-Clause license. Check the license terms before using it in commercial products.
Is Serendipity still maintained?
Updated within 6 months. The last commit to Serendipity was on Sep 12, 2026.
What can I use Serendipity for?
Running a personal or hobby blog on a standard PHP web host Building a small site with static pages using the static-page plugin Operating a multi-author blog with user groups and categories
How do I install Serendipity?
Download a release archive from the releases page Install PHP 8.0 or newer with MySQL/MariaDB, PostgreSQL or SQLite, and Apache Upload the files to your webroot and visit your URL to start the installer
Where can I get Serendipity?
The source code and installation instructions are on GitHub: https://github.com/s9y/Serendipity

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