Where to Find the Source Code and Documentation for MiniMessage Viewer

Updated

The MiniMessage Viewer (also called Adventure WebUI) is open source: its code is hosted on GitHub, and the MiniMessage format itself is documented on the official Adventure documentation site. Use the GitHub repository if you want to inspect how the viewer works, report an issue, or contribute; use the Adventure docs if you need the authoritative reference for MiniMessage syntax and behavior.

Source code: Adventure WebUI on GitHub

The MiniMessage Viewer page states that the source code for Adventure WebUI, also known as MiniMessage Viewer, can be found on GitHub. That repository is the place to go for:

  • Verifying how a specific feature (preview modes, sharing, JSON export) is implemented
  • Checking behavior when the live site and your expectations differ
  • Filing bug reports or contributing changes

The site itself does not print the repository URL in the text provided, so search GitHub for "Adventure WebUI" or "MiniMessage Viewer" rather than guessing a path.

Format documentation: official Adventure docs

The viewer's FAQ points to the official documentation for learning MiniMessage itself. This is the reference to use for tag syntax, color and formatting tags, and how MiniMessage strings are structured — the viewer is an editing and preview tool, not the specification. If a tag behaves unexpectedly in the preview, check the docs first, then the GitHub source.

Which resource to use

You want to… Go to
Look up MiniMessage tag syntax or semantics Official Adventure documentation
Inspect or verify viewer behavior GitHub repository for Adventure WebUI
Report a bug or contribute a fix GitHub repository for Adventure WebUI
Just write and preview text The viewer at webui.advntr.dev

Practical notes

  • The viewer's FAQ describes the workflow: enter text in the middle input box, pick a preview format (chat, lore, hologram, server list) with the top buttons, and see output below. Formatting buttons add bold, italic, underline, clickable URLs, commands, and hover text.
  • Sharing has a time limit worth knowing before you rely on links: short links expire after 6 months, so save the full link if you need it longer. "Export to JSON" produces a JSON representation for pasting into a plugin or mod.
  • "Try in-game" copies a Minecraft server IP to your clipboard that you add to your server list for an in-game preview. The page notes this is not official Minecraft software.
  • The page also shows a "Your connection with the server has been lost, please reload the page" message as part of its interface text; if you see it while using the tool, reload before assuming a bug in your MiniMessage string.