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Datenstrom Yellow

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Datenstrom Yellow's own site

What Datenstrom Yellow is

Datenstrom Yellow is a free, self-hosted system for making small websites, wikis, and blogs. It stores website content in files and folders, with pages kept in a content folder rather than requiring a database, app, or registration. Pages can be edited in a browser, where changes appear immediately, or in a text editor using Markdown. The maker lists more than 100 features, languages, and themes, including blog, contact form, search, and wiki extensions. Other listed options include an Instagram photo embed and a contact form for sending email. Development tools include a static generator and an API. Supported web servers include Apache, Caddy, LiteSpeed, Nginx, and compatible servers. Installation involves downloading and extracting a ZIP, then copying its files to a web server; local use with PHP is also documented. The stated requirement is PHP 7.0 or higher. Commercial and private use are allowed. The maker describes the system as particularly convenient for developers and designers. Support is not included and can be purchased separately.

Who it suits

Datenstrom Yellow suits developers and designers who want to create small sites, blogs, or wikis using a file-based, self-hosted setup. It also allows commercial and private use.

What it does well

  • Free plan is listed.
  • Content is stored in files and folders.
  • Browser edits appear immediately.
  • More than 100 features, languages, and themes are listed.
  • Commercial and private use are allowed.

What to know first

  • Requires PHP 7.0 or higher.
  • Support is not included.
  • Installation requires copying files to a web server.

Plans

PlanBilled and limitsPrice
Datenstrom YellowOpen source; PHP 7.0 or higher; no database, app, or registration required; support not includedFree
FreeNo cost listed · No paid tier listed · self-hosted softwareFree

As datenstrom.se lists them, read 12 Oct 2026. The maker's own page has the final word.

Verdict

Datenstrom Yellow offers a file-based approach to small websites, blogs, and wikis, with browser and text-editor editing. Check the PHP requirement and arrange separate support if needed.

Facts from Datenstrom Yellow's own pages

API
The PHP API exposes content, media, system settings, languages, users, extensions, lookup helpers, toolbox functions and the current page. · datenstrom.se, 15 Oct 2026
Audience
The maker describes the product as particularly convenient for developers and designers. · datenstrom.se, 12 Oct 2026
Browser editing
Users can sign in through a web browser, edit pages and immediately view the result. · datenstrom.se, 15 Oct 2026
Commercial use
The maker states that both commercial and private use are allowed. · datenstrom.se, 12 Oct 2026
Developer tools
The product information page lists a built-in web server, static generator and developer API. · datenstrom.se, 15 Oct 2026
Editing
You can edit pages in a web browser or text editor and see browser edits immediately. · datenstrom.se, 12 Oct 2026
Extensibility
Extensions can react to core, parsing, editing, command and update events and can add commands or content elements. · datenstrom.se, 15 Oct 2026
Extensions
The official extension catalog lists more than 100 features, languages and themes. · datenstrom.se, 15 Oct 2026
File based
Website content is organized in files and folders, with content stored in a content folder. · datenstrom.se, 12 Oct 2026
File-based storage
Content, media and configuration are stored in ordinary folders and files rather than a database. · datenstrom.se, 15 Oct 2026
Formatting
Markdown is supported for text formatting. · datenstrom.se, 12 Oct 2026
Free plan
Yes · datenstrom.se, 23 Sept 2026
Hosting
The maker lists Apache, Caddy, LiteSpeed, Nginx, and compatible web servers as supported. · datenstrom.se, 12 Oct 2026
Installation
Installation consists of downloading one file, unzipping it and copying the files to a web server. · datenstrom.se, 15 Oct 2026
Integrations
An independent user reports using extensions for Google Calendar, Google Maps, Instagram and YouTube in addition to gallery and contact features. · vomran.de, 15 Oct 2026
Key features
Official extensions include blogs, breadcrumbs, contact forms, browser editing, galleries, search, sitemaps, comments, feeds and static generation. · datenstrom.se, 15 Oct 2026
Languages
The extension catalog lists 19 installation languages, including English, German, French, Spanish, Swedish and Japanese. · datenstrom.se, 15 Oct 2026
License
The source code is licensed under GNU GPL version 2, with an additional restriction against proprietary source code and proprietary machine-learning datasets unless separately licensed. · raw.githubusercontent.com, 15 Oct 2026
Limit: Markdown learning curve
The independent French review says Markdown knowledge is essential and HTML/CSS knowledge is needed for customization. · graphizm.fr, 15 Oct 2026
Limit: minimal administration
The same review says Yellow has no dashboard or command panel and that several settings require editing files manually. · graphizm.fr, 15 Oct 2026
Limit: navigation management
The French test reports that newly created pages may require manually adding links and that blog editing can require FTP and a code editor. · dbodesign.com, 15 Oct 2026
Limit: no WYSIWYG editor
The French test reports that the built-in editor is Markdown-based and that a conventional visual WYSIWYG editor is not provided by default. · dbodesign.com, 15 Oct 2026
Limit: project scale
CMSstash places Yellow among flat-file systems aimed mainly at small projects and notes that larger, complex sites generally need more complex technologies. · cmsstash.de, 15 Oct 2026
Local development
A local site can be run with the command php yellow.php serve. · datenstrom.se, 15 Oct 2026

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