WebKit
by Titop54
WebKit is a Forge library that runs a small local HTTP server, letting a browser fetch the assets, models, item list and block list of a modded game.
What it does
WebKit starts a simple HTTP server on port 61423 when the client runs. If that port is taken, it tries 61424 and up to 10 ports in total before giving up. A browser pointed at the server can then request item lists, block lists, models and other assets without opening the mod's jar file or using external tools.
The server is meant for development work, such as reviewing how a mod's models and textures look outside the game. Some KubeJS API requests are integrated, so scripts can read these assets through the same interface. The returned data resembles the original mod's files, except that a custom loader can return generated JSON examples in place of the real content, and GTCEU uses that custom loader to turn its content into standard Minecraft representation.
WebKit is a client-side only mod for Forge 1.20.1, so only the client needs it and servers run without it. It is released under the MIT License, and the code is not open source. Its primary category is Library, with Utility as a secondary category.
Key features
Local asset server
A simple HTTP server on port 61423 serves assets to a browser while the client runs.
Port fallback
If the default port is busy, the server tries port 61424 and further ports, up to 10 attempts.
Item and block lists
Requests return item lists and block lists, so their contents can be checked in a browser.
Model access
Models are retrieved directly over HTTP, without opening the mod's files.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Reviewing models in a browser
Modders and pack authors can open models and textures from a running client in a browser window.
Scripted asset reads
Some KubeJS API requests are integrated, so scripts can read the same assets through the server.
Who it’s for: WebKit suits modders and pack developers who inspect assets, models, item lists and block lists while working on content. Players who only play modded worlds have little use for it.
How it compares
KubeJS Figura is a Forge mod for 1.20.1 – 1.20.6 that runs on client and server, under a custom license, and it is not open source. Create Heat JS is a Forge mod for 1.19.2 – 1.20.1 that runs on client and server, under the MIT License, and it is open source. WebKit differs from both by being client-side only and limited to asset access, not scripting or heat mechanics.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| WebKit | Forge | 1.20.1 | Client-side only | 2026-04-22 |
| KubeJS Figura | Forge | 1.20.1 – 1.20.6 | Client and server | 2025-05-10 |
| Create Heat JS | Forge | 1.19.2 – 1.20.1 | Client and server | 2024-06-13 |
Questions
Does WebKit need to be installed on the server?
What happens if port 61423 is already in use?
Which game versions does WebKit support?
In the catalog
WebKit is one of 3,514 Library mods on ModsFinder, and one of 1,576 Library mods for Forge. 34,764 mods support Minecraft 1.20.1.
Similar mods
What the author says
A simple HTTP server for 1.20.1, integrating some of the KubeJS api requests from 1.21.1 on port 61423 (or if it's fails, try to use port 61424,.... up to 10 tries) You can get assets, models, item list and block list easily, just opening your browser and put. Useful to get assets and models automatically with simple…
Official listing
- Modrinth page
- modrinth.com/mod/webkit
- Owner
- Titop54
- Published
- 2026-04-22
- Updated on Modrinth
- 2026-04-22
- Facts verified
- 2026-10-15