Taxonomy editor suite

Unilexicon™ a visual editor and taxonomy manager for authoring controlled vocabularies with a content tagging extension.

Visual taxonomy editor and management tools for controlled vocabularies and thesauri

  • use beautiful graphs and predictive taxonomy search to explore and edit vocabularies
  • drag and drop concept ordering with attractive intuitive interface
  • comprehend and manage relations in large complex taxonomies
  • author simple knowledge organisation systems (SKOS) fast and well
  • import and export formats including JSON, SKOS, HTML lists, markdown/text, CSV and Excel

Unilexicon is a free tool for creating and managing public taxonomies with paid professional membership supporting its continuous development and offering features that include private vocabularies, collaboration tools, and fast technical support. Become a professional member

We publish the world's most comprehensive port guide in book form and online.

The taxonomy work has been proceeding slowly for quite some time,
mainly due to the lack of a useful tool to make it easier.

Unilexicon has made a huge difference. Yesterday I transformed the data from
being categorised in 2/3 levels, to a 95% complete usable taxonomy over 10 levels.

Faergal Hogan One Ocean: Guide to Port Entry

Register today

Unilexicon: taxonomy editor

Tagging tool

Allows you to tag your resources using controlled vocabularies.

  • Seamlessly integrated with the Unilexicon repository, enabling you to efficiently tag your content, documents, items, and records.
  • It is content management system independent, so you can easily tag websites or your own records. You can use it as a Chrome browser extension or integrate it directly into your CRM or CMS.
  • Unfortunately, tagging extension is currently unavailable. However, if you require annotation functionality, please contact František Malina to discuss sponsorship opportunities.

Professional subscription

Hi, I'm Francis Malina the creator of Unilexicon, a free and open platform that helps you manage taxonomies and classifications. I know from experience that taxonomy work can be complex and time-consuming, and that's why I've designed Unilexicon with a focus on user experience. When you use Unilexicon, you can spend less time working on technical complexities and more time focusing on the important human aspects of taxonomy work, like finding the right concepts and defining their relationships.

I believe that good design is about decreasing cognitive load and making complex tasks feel intuitive and easy. That's why Unilexicon handles the heavy technical aspects for you, like handling XML serialization, storing RDF, and generating great unique human-readable concept IDs. Drag-and-drop visual sorting and relationship representation helps ensure correctness and reduces mistakes.

I'm always looking for ways to make Unilexicon better, and I do rely on your feedback to prioritise tasks. To send suggestions for new features, ideas for improving the platform, or just want to say hello, please contact me František Malina. By using Unilexicon, you're not just getting access to a powerful taxonomy management tool, you're also joining a community of taxonomists and knowledge workers who are committed to building a better, more connected world.

Unilexicon offers a free and open platform to manage public taxonomies under the CC-BY license. By contributing your vocabulary, you're helping to build a public knowledge base that benefits everyone.

However, some users do require private taxonomies for their work. If you're using a private vocabulary and would like to access advanced features, I encourage you to upgrade to a professional subscription. With a paid subscription, you'll have access to exclusive features such as collaboration tools, fast technical support and GDPR-compliant privacy for your taxonomy data.

By subscribing, not only will you have access to these exclusive features, but you'll also be supporting the continued development of Unilexicon. Your contribution will help me maintain and improve the platform, ensuring that it remains a valuable resource for taxonomists everywhere.

Purchase professional membership