| Price from | $1,166.67/mo | Free |
| Free plan | — | Yes |
| Free trial | — | — |
| Open source | — | — |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 2 | 1 |
| Spec score · Documentation Generators | 8.2 (#5) | 7.1 (#29) |
| Extensibility | Antora has an open architecture and supports custom extensions and generator pipelines. | Developers can extend YARD with plugins to handle custom Ruby syntax and constructs. |
| Integrations | The documentation describes GitHub, GitLab, Bitbucket, and other code hosting services as platforms for Git-based documentation workflows. | The site names plugins supporting RSpec, DataMapper, and Sinatra. |
| License | The Antora GitLab project states that it is licensed under the Mozilla Public License 2.0. | The site states that YARD uses the MIT License. |
| Purpose | Antora is a documentation site generator for technical writers working in AsciiDoc. | YARD generates consistent, usable documentation for the Ruby programming language and can export it to different formats. |
| Support | OpenDevise offers paid Pro and Premier support packages covering Antora configuration and deployment, Asciidoctor extensions, and AsciiDoc syntax. | The site lists an IRC channel, a mailing list, and GitHub as ways to get in touch. |
