Cobble

Summary

Cobble is a free, open-source tool that turns .cbl source into data packs for Minecraft Java Edition. Its language uses Python-like syntax for functions, imports, indentation, and control flow, with static type inference for variables, constants, and expressions. Generated packs can include functions, tags, predicates, advancements, loot tables, recipes, item modifiers, dialogs, and other JSON resources. Cobble also supports Minecraft command JSON safety, macro parameters, and command validation. The command-line workflow includes project setup, formatting, building, checking, watching, validation, inspection, linking, cleanup, and ZIP output. Users can install the stable release with Cargo or use a browser compiler whose parser and transpiler run through WebAssembly; the browser tool can download generated files or a pack ZIP. The project lists Minecraft Java Edition 26.1.2 and pack format 101.1 as its target. Cobble is pre-1.0 and under active development, so bugs and API changes are possible. Validation may require curl and Java when the default command data file is absent.

Who it is for

Cobble suits Minecraft Java Edition players and creators who want to write data-pack content in a Python-like language. It may also fit developers who prefer a CLI workflow or a browser-based compiler.

Compared on Minecraft datapack generators

Function generation

Yesdeveworld.github.io

Recipe generation

Yesdeveworld.github.io

Loot table generation

Yesdeveworld.github.io

Advancement generation

Yesdeveworld.github.io

Predicate generation

Yesdeveworld.github.io

Export format

bothdeveworld.github.io

Datapack validation

Yesdeveworld.github.io

Facts

Purpose

Cobble transpiles .cbl source into Minecraft Java Edition data packs.github.com · 30 Sept 2026

Language

Cobble provides Python-like syntax for functions, indentation, imports, and control flow.github.com · 30 Sept 2026

Generated output

Cobble emits .mcfunction files, pack metadata, tags, predicates, advancements, loot tables, recipes, item modifiers, dialogs, and JSON resources.github.com · 30 Sept 2026

Command handling

Cobble supports Minecraft command JSON safety, macro parameters, and command validation.github.com · 30 Sept 2026

Standard library

Its standard library includes helpers for events, text, scoreboards, storage, item components, schedules, selectors, positions, bossbars, teams, and entities.github.com · 30 Sept 2026

CLI workflow

The CLI includes project initialization, formatting, building, checking, watching, validation, inspection, linking, cleaning, and ZIP output commands.github.com · 30 Sept 2026

Browser compiler

Cobble provides a browser compiler whose Rust parser and transpiler run through WebAssembly.deveworld.github.io · 30 Sept 2026

Browser export

The browser compiler can download generated files or a data pack ZIP.deveworld.github.io · 30 Sept 2026

Minecraft target

The website lists Minecraft Java Edition 26.1.2 and pack format 101.1.deveworld.github.io · 30 Sept 2026

Project status

Cobble is described as pre-1.0 software in active development, with possible bugs and API changes.github.com · 30 Sept 2026

Support

The project directs users to GitHub Issues for support and bug reports.github.com · 30 Sept 2026

License

Cobble is licensed under the MIT License.github.com · 30 Sept 2026

Validation dependency

The validation workflow may require curl and Java to generate the default Minecraft command data file.github.com · 30 Sept 2026

compilation

Cobble transpiles .cbl source into Minecraft Java Edition data packs.github.com · 2 Oct 2026

language features

The language supports functions, indentation, imports, and control flow with Python-like syntax.github.com · 2 Oct 2026

typing

Cobble provides static type inference for variables, constants, and expressions.github.com · 2 Oct 2026

resource support

Data-pack output includes functions, event tags, predicates, advancements, loot tables, recipes, item modifiers, and dialogs.github.com · 2 Oct 2026

cli

The CLI supports project templates, formatting, building, checking, watching, validation, and ZIP output.github.com · 2 Oct 2026

installation

The stable release can be installed with cargo install cobble-lang --locked.github.com · 2 Oct 2026

validation requirement

Generated-command validation requires curl and Java when the default data/commands.json file is missing.github.com · 2 Oct 2026

maturity

Cobble is pre-1.0 software in active development, and the project warns that bugs and API changes are possible.github.com · 2 Oct 2026

Where it ranks on Everything Xiaomi

• Best Minecraft Datapack Generators in 2026#12 of 22

Sources

• github.com/deveworld/cobble· checked 30 Sept 2026
• deveworld.github.io/cobble/try/· checked 30 Sept 2026
• deveworld.github.io/cobble/· checked 30 Sept 2026