Freedom251 › Knowledge base software
Feather Wiki
What Feather Wiki is
Feather Wiki is free, open-source software for creating non-linear notebooks, databases, and wikis in a single HTML file. The app and wiki data stay together, making the file portable for browser use or hosting. Users can create unlimited interconnected and nested pages and unlimited tags. Content can be edited with a visual editor or Markdown preview, while custom CSS and JavaScript allow further changes. To publish, mark the wiki as published to hide editing controls, then upload the HTML file to a server that serves static HTML. Tiddlyhost offers free hosting, and an auto-save extension works with Tiddlyhost or another hosted Feather Wiki nest. Official extensions add search, image viewing, data import and export, page cloning, and automatic tables of contents. Search is not built in. Feather Wiki is maintained by Robbie Antenesse and licensed under GNU AGPL-3.0-or-later. It works on Android, iOS, Linux, macOS, Windows, the web, and self-hosted setups.
Who it suits
Feather Wiki suits people who want portable, customizable notebooks or wikis stored as one HTML file. It is also appropriate for users comfortable with extensions, hosting, and open-source software.
What it does well
- Single HTML file keeps app and data together
- Unlimited interconnected pages and tags
- Visual and Markdown editing
- Custom CSS, JavaScript, and extensions
- Free open-source software under GNU AGPL-3.0-or-later
What to know first
- Search is not built in
- No release notifications
- Alternating Markdown list types can struggle
- Some quality-of-life features are excluded
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Feather Wiki | Free, open-source wiki software; single-file HTML app | Free |
As feather.wiki lists them, read 12 Oct 2026. The maker's own page has the final word.
Verdict
Feather Wiki offers a compact, portable wiki that can be edited, customized, and published as static HTML. Its extension model adds capabilities, but built-in search and some convenience features are limited.
Facts from Feather Wiki's own pages
- Publishing audience
- both · feather.wiki, 20 Sept 2026
- Built-in search
- Search is not built in; the Known Limitations page points users to a Search extension. · feather.wiki, 12 Oct 2026
- Compatibility limitation
- The product’s Markdown nested lists can struggle when alternating between ordered and unordered list types. · feather.wiki, 12 Oct 2026
- Creator
- The maker says Feather Wiki was created and is maintained by Robbie Antenesse. · feather.wiki, 12 Oct 2026
- Customization
- Wiki settings support custom CSS and JavaScript, and extensions can add JavaScript saved with the wiki. · feather.wiki, 12 Oct 2026
- Editing and customization
- The product supports visual and Markdown editing, custom CSS, and extending the wiki by modifying its core. · feather.wiki, 12 Oct 2026
- Editors
- Page content can be edited with a visual editor or with Markdown preview. · feather.wiki, 12 Oct 2026
- Extensions
- Official extensions include search, auto-save, image viewing, data import/export, page cloning, and automatic tables of contents. · feather.wiki, 12 Oct 2026
- File size
- The Features page says an empty Feather Wiki is less than 57 kilobytes. · feather.wiki, 12 Oct 2026
- Hosting
- The About page names Tiddlyhost as a free hosting platform for saving Feather Wiki directly. · feather.wiki, 12 Oct 2026
- Integrations
- The Auto-Save extension works with Tiddlyhost or another Feather Wiki nest hosted on a web server. · feather.wiki, 12 Oct 2026
- Known limitation
- The maker says some quality-of-life features, optimizations, and data validations are excluded to keep the tool small. · feather.wiki, 12 Oct 2026
- Open source
- Feather Wiki is open-source software licensed under GNU AGPL-3.0-or-later. · feather.wiki, 12 Oct 2026
- Pages and tags
- Users can create unlimited interconnected, nestable pages and unlimited tags. · feather.wiki, 12 Oct 2026
- Portable file
- The app and wiki data are saved together in one HTML file, which can be hosted by uploading it to a web server. · feather.wiki, 12 Oct 2026
- Publishing
- Users can mark a wiki as published to hide editing controls, then upload the HTML file to a host that serves static HTML. · feather.wiki, 12 Oct 2026
- Purpose
- Feather Wiki is a tool for creating non-linear notebooks, databases, and wikis. · feather.wiki, 12 Oct 2026
- Saving and publishing
- Users save their wiki as an HTML file and can publish it by uploading that file to a web server. · feather.wiki, 12 Oct 2026
- Search limit
- Search is not built into Feather Wiki; the maker points users to an extension that adds search. · feather.wiki, 12 Oct 2026
- Security and license
- Feather Wiki is open-source software under the GNU AGPL-3.0-or-later license; its About page does not state a security certification. · feather.wiki, 12 Oct 2026
- Single-file app
- The app is contained in a single 56-kilobyte HTML file that runs in a browser. · feather.wiki, 12 Oct 2026
- Size
- The current Goldfinch 1.9.1 download is 56 kilobytes. · feather.wiki, 12 Oct 2026
- Support
- The About page directs users to the Codeberg repository to report problems, ask questions, discuss, and request features. · feather.wiki, 12 Oct 2026
- Updates limitation
- Feather Wiki does not notify users when new versions are released. · feather.wiki, 12 Oct 2026
Where Feather Wiki stands on Freedom251
- Knowledge base software#52 of 138