About D20 Desk

Last updated 2026-10-20

D20 Desk is a free set of browser tools. Each page does one job and works straight away: there is no account and nothing to install.

How it works

• Everything runs in your browser. What you type or choose stays on your device; nothing is uploaded.
• Results are computed, not typed in. The examples on each page are produced by the same code the tool runs, and the code is tested against independently calculated results.
• Third-party material used on the site is listed on the credits page.

If a tool gives a wrong result, please tell us through the contact page.

Who runs it

D20 Desk is owned and operated by SKYSEED TECH LLC. You can write to us at support@d20desk.com.

Advertising

The site is free to use. We may show advertising in future to pay for hosting and development. If we do, ads will be labelled “Advertisement”, will never cover a tool, and are described in the privacy policy.

Rules source and trademarks

The rules, monsters, spells and magic items on D20 Desk come from the System Reference Document 5.2.1 (“SRD 5.2.1”) by Wizards of the Coast LLC, which is free to use under the Creative Commons Attribution 4.0 International License; the full attribution is on the credits page and at the foot of every page. Random tables, quiz questions and other text are written for this site.

D20 Desk is an independent, 5E compatible site. It is not affiliated with, endorsed by or sponsored by Wizards of the Coast. Dungeons & Dragons and D&D are trademarks of Wizards of the Coast; we use “DnD” only to describe which game a tool is for.