Apps similar to Ema Personal Wiki include Zim, which is free and open source. Other options are CherryTree, TiddlyWiki, BookStack and MediaWiki. There's no shortage of Note-taking Tools like Ema Personal Wiki, with more than 25 alternatives for self-hosting, the web, Windows, Linux and Mac.
OneBar is a Q&A Knowledge Base for your team. It is like StackOverflow or Quora, but it’s private for your team, optimized for collaboration, and integrates with the systems that you use at work.
United States
Herodotus has been designed as easy to use archival software, created to serve as an offline information reference when internet access in unavailable. Herodotus is not designed to be a personal "wayback machine", instead its focus is on providing a handy offline...
Slab is a knowledge hub for the modern workplace. We help teams unlock their full potential through shared learning and documentation. Slab features a beautiful editor, blazing fast search, and dozens of integrations like Slack, GitHub, and G Suite.
United States
The Most Advanced WordPress Knowledge Base Plugin Build a WordPress Knowledge Base with access control, frontend editing, and many more power-packed | Helpie Knowledge Base Plugin
Knowen is an experiment in progress that is being designed to organize, preserve, and expand human knowledge - placing it in a hierarchical knowledge base (graph) that makes it readily available to learners of all backgrounds and ages.
NoteLynX is the unique, 3-in-1 Outliner, Mindmap and Personal Wiki with embedded Hyperlinks to cross reference your notes. NoteLynX also lets a child note have Multiple Parents, enabling it to belong to multiple lists.
Noteship is a personal information manager that combines notes, todos, and reminders and is based on simple files and folders.
UserPress is a wiki plugin for WordPress offering sophisticated functionality wrapped in a simple, intuitive interface. UserPress allows users to edit and create content using your front-end theme (as opposed to the wp-admin area), much like Wikipedia.
Australia
Create, share, and print vibrant docs without the headache of formatting text — for everything from notes to massive user manuals.
MarkWiki aims to be dead simple. MarkWiki was born out of frustration with bad documentation tools behind a company firewall that were too complex.
NoStash is a web app to keep your notes organized and searchable, is indie, ethical and future proof. Indie: developed by a tiny team without funds. Ethical, your privacy and your notes are before everything else. Future Proof: the founder use it.
India
