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Serendipity

Free#51 of 125 in Blogging Platforms

Serendipity: A flexible open-source choice for self-hosted blogs with rich editing and media tools. Ranked #51 of 125 in Blogging Platforms by our editors (5.2/10); pricing: Open source; best for traditional self-hosted blogs with rich editing.

5.2/10Editor score

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At a glance

Editor score
5.2 / 10
Pricing
Open source
Best for
Traditional self-hosted blogs with rich editing
Paid from
Free
Founded
2002
Facts checked
22 Sep 2026

Where it wins
- Supports WYSIWYG, Markdown, Textile, plain-text, and HTML editing
- Includes media management, plugins, themes, categories, tags, and comments
- Offers multiple users, permissions, feeds, permalinks, and automatic upgrades
Where it doesn't
- Requires installation on a web server or local machine
- Depends on PHP and a supported MySQL, PostgreSQL, or SQLite database
- Does not provide modern hosted convenience or verified analytics

Our verdict on Serendipity

Serendipity is an open-source, PHP-powered weblog engine for casual bloggers and professional applications. It is designed for people who want to manage a blog on their own web server or local machine rather than use a hosted SaaS platform. The administration interface covers entries, media, comments, categories, tags, and multiple users, while customizable permalinks, URL rewriting, RSS 2.0, and Atom 1.0 support cover core publishing needs. Its BSD license and 2002 founding also give it a long-running open-source profile.

The editing and publishing feature set is broad for a traditional blog. Writers can work in WYSIWYG, Markdown, Textile, plain-text, or HTML formats, and the integrated image manager handles media within the administration interface. Nested categories and tags support structured archives, while comments, trackbacks, pingbacks, and moderation cover conversation and publishing workflows. Theme customization uses Smarty templates, and the plugin system supports sidebar and event plugins. Scheduled posts, custom domains, and custom-code theme editing are included in the category specifications.

Serendipity also fits sites that need control over users, permissions, feeds, and publishing URLs. Integrations include Akismet, the Blogger API, and the Movable Type XML-RPC API, with XML-RPC editing available alongside the web interface. Automatic version upgrading is included, and the software supports MySQL, PostgreSQL, and SQLite databases. The trade-off is its self-hosted model: installation and ongoing operation sit with the site owner, and the product does not offer the hosted convenience or verified analytics associated with some alternatives. Choose Serendipity for control, format flexibility, and traditional blog administration; choose a hosted platform instead if managed infrastructure is the priority.

Your product? Our editors can test Serendipity in depth and publish a review, labelled as paid · from $149/mo →

Serendipity pricing

Plans Open sourceFree Free to use — no paid tier required for the core job.

See plans on s9y.org

Serendipity fact sheet

Free plan	Not verified
Paid from	Free
Custom domain	Not verified
Author limit	Not verified
Theme customization	Custom code
Post scheduling	Not verified
Built-in memberships	Not verified
Blog analytics	Not verified
Deployment	Self-hosted
Platforms	Web
Support	Community, Docs
Built for	Solo, Small business, Mid-market (editorial estimate)
Pricing	Open source
Website	s9y.org
Facts checked	22 Sep 2026

Alternatives to Serendipity

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Featured on iTechGuides

Serendipity is listed in our Blogging Platforms directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated 7 Oct 2026 · How we research and update