About WonderCMS

WonderCMS is a free and open source flat file CMS, aimed to be extremely small and simple. It's built with PHP, jQuery, HTML and CSS, developed since 2008.

No initial configuration is required and the installation process is pretty straightforward - simply unzip and upload 5 files.

All files can be easily moved, backed up and restored by copy/pasting all files to another location. Moving them to another host does not require any re-configuration.

WonderCMS also doesn't require a traditional/relational database like MySQL. The flat file technology enables WonderCMS to save all data to a text file (flat file) called database.js which is structured in JSON format .

List of all features

Short history

Who, why

I (a guy called Robert) started this project as simple CMS for maintaining my websites in college (about 10 years ago). The reason for this creation was, simply put, me being tired of all the over-bloated solutions that included too many unneeded features and required initial configurations. My goal was to create something simple and possibly something that I would enjoy using for years to come.

After using it for a while and loving the simplicity of it, I thought to myself "this could possibly be my tiny gift to the internet" or a way of saying thanks and giving back since I've been amazed by it since my childhood years. I decided to share it with the world and I've been maintaining it for free ever since.

The idea of WonderCMS was born in 2008, open sourced in 2010 and been a growing idea ever since.

A growing idea of small but functional pieces of code that enables establishing web projects quickly and efficiently. The mission is to keep it small, simple, secure and hassle free.

I've been also incredibly lucky to have awesome supporters and contributors along the way, as they've made this an EPIC journey. WonderCMS would not be the same without these individuals.

If you like what WonderCMS stands for, consider supporting this project with a donation.



First version released.


Open sourced.


Various different beta versions released.
Partially rewritten by Luka Mrovlje.


Partially rewritten by Yassine Addi.
Version 1.1.0 beta released with one click update functionality.


Version 1.2.0 beta released. WonderCMS now automatically includes functions.php if it's created inside your theme folder.
Version 2.0.0 released. First non-beta version after 9 years.
Version 2.0.1 released.
Version 2.0.2 released.
Version 2.0.3 released.
Version 2.0.4 released.
Version 2.0.5 released.
Version 2.0.6 released.
Version 2.1.0 released.
Version 2.2.0 released.
Version 2.2.1 released.
Version 2.3.0 released.
Version 2.3.1 released.
Version 2.3.2 released.


Version 2.4.0 released.
Version 2.4.1 released.
Version 2.4.2 released.
Version 2.5.0 released.
Version 2.5.1 released.
Version 2.5.2 released.


Version 2.6.0 released.

WonderCMS 5 file structure

 - index.php // WonderCMS core file, contains most of the functionality
 - database.js // default database, is created the first time you visit your website
 - .htaccess // creates clean URL's, denies access to database.js, disables directory/file listing server signature
 - [themes folder]
    - [default theme folder]
        - theme.php // default theme file
    	- [css folder]
            - style.css // default styles

NOTE: WonderCMS one click update feature rewrites the index.php. Any changes made the index.php file will be lost after each update.

Privacy, future, updates

WonderCMS is not interested in any user data. It's completely track-free, cookie-less and without any obligations since 2008. Check the short Privacy Policy.

One of the WonderCMS goals is to provide a "perfect" core and push as little updates as necessary. This provides WonderCMS users with a hassle free experience. When a new update is available, updating is easy with the built in one click update feature which can be also important for delivering critical security updates. Every update comes from the WonderCMS GitHub repository.

To keep this project within it's nature, which is sustainable and tiny, WonderCMS will support a maximum of 25 themes and 25 plugins. Once this limit is reached in each category, a simple voting system will be established. Users will be able to vote for their favorite plugins and themes to ensure they stay in the chosen "25" on a monthly basis.

The voting comes in handy in situations where users feel one of the 25 plugins or themes can be replaced by a better one with similar functionality, or when a plugin/theme is no longer actively maintained. This is a good way to ensure we have a small and quality set of themes/plugins. The "25 chosen ones" of each category will be easier to maintain and watch over by the whole WonderCMS community.

Features that won't be included in WonderCMS

WonderCMS is meant to be a truly simple and tiny environment. Here's a short list of features WonderCMS doesn't support.

  • WonderCMS doesn't support multiple users. There is only one administrator and one password.
  • WonderCMS doesn't have permissions or user roles as it supports only one user (with super powers).
  • WonderCMS will not include an "auto update" feature. In the unlikely event of the official WonderCMS GitHub account being compromised, hackers would be able to deploy updates to all sites simultaneously. These type of malicious attacks are currently halted with the built in one click updater. This minimizes possible damage as users are encouraged to review code changes before using the 1 click update.

What can WonderCMS be used for

Is WonderCMS better or worse than _____?

WonderCMS supports and encourages all open source software and doesn't see them as competition. Every user has different needs and it's easy to realize WonderCMS isn't a perfect solution for every situation. The purpose of WonderCMS is to provide a simple alternative to website crafting.

Demo playground
Download WonderCMS 2.6.0 14kb