Serendipity

Spec sheet

What it does

Serendipity is a PHP-powered weblog engine for maintaining a blog, with a default package aimed at casual bloggers and an expandable framework for professional applications.Read 12 Oct 2026 · docs.s9y.org

Audience

The maker describes the default package as designed for casual bloggers while also offering an expandable framework for professional applications.Read 12 Oct 2026 · docs.s9y.org

Integrations

The software supports Movable Type and Blogger XML-RPC APIs and database backends for MySQL, PostgreSQL, and SQLite.Read 12 Oct 2026 · docs.s9y.org

Security

The project invites security reports for responsible disclosure and says it usually responds within 24 hours to discuss next steps.Read 12 Oct 2026 · docs.s9y.org

Support

Users can seek help in the forums, report bugs through the GitHub issue tracker, and obtain commercial support through the lead developer’s company.Read 12 Oct 2026 · docs.s9y.org

Founded

2002Read 28 Sep 2026 · s9y.org

Content organization

Serendipity supports nested categories, posting entries to multiple categories, and tags.Read 12 Oct 2026 · docs.s9y.org

Editing

Entries can be written with a WYSIWYG editor or markup languages including Markdown and Textile, and the software includes an image manager.Read 12 Oct 2026 · docs.s9y.org

Multiple users and blogs

Multiple users can edit and administer a weblog under a permission system, and one installation can serve multiple independent weblogs.Read 12 Oct 2026 · docs.s9y.org

Plugins and themes

Plugins can extend blog functionality, themes can change its appearance, and the Spartacus online repository supports installing plugins and themes and updating plugins.Read 12 Oct 2026 · docs.s9y.org

Recent security fixes

The 2.6.1 security and bugfix release addresses four reported security issues, including username duplication, search-page XSS, access to internal network resources during media downloads, and a possible open redirect.Read 12 Oct 2026 · blog.s9y.org

Release

The downloads page lists version 2.6.1 as the latest stable release and recommends it over the 2.7 development snapshot.Read 12 Oct 2026 · docs.s9y.org

Requirements

The FAQ lists PHP 7.4 or newer, MySQL, PostgreSQL, or SQLite, and the Apache web server as requirements.Read 12 Oct 2026 · docs.s9y.org

Spam controls

Plugins provide comment and trackback spam controls including Akismet, honeypots, word filters, a local Bayesian filter, captchas, and moderation.Read 12 Oct 2026 · docs.s9y.org

Standards and feeds

Serendipity supports HTML5, CSS3, RSS 2.0, Atom 1.0, conditional GET for RSS caching, and UTF-8 environments.Read 12 Oct 2026 · docs.s9y.org

Theme customization

custom codeRead 22 Sep 2026 · docs.s9y.org

Plans and prices

Every Serendipity plan and price →

Where Specifiction places it

• Blogging Platforms#74 of 1257.9