Quilt Loom review

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Quilt Loom is an open-source Gradle build tool for developing Minecraft mods with Quilt. It is aimed at developers working inside Quilt’s modding ecosystem, with project features that connect repository configuration, metadata handling, dependency management, mappings, and source decompilation. The tool is free and distributed as source code through QuiltMC’s GitHub organization, making it a focused option for Quilt projects rather than a general-purpose Minecraft mod development environment.

Its strongest value is the way Quilt-specific development tasks are combined in one build tool. Quilt Loom automatically adds the Quilt Releases repository, parses quilt.mod.json metadata, supports jar-in-jar dependencies, and handles transitive access wideners. Interface injection support extends its development capabilities, while Quiltflower source decompilation is enabled by default. The automatic application of the Quilt Mappings on Loom also keeps mappings integration within the project workflow instead of treating it as a separate feature.

The main trade-off is scope. Quilt Loom supports the Quilt loader, so developers building for a different loader or seeking one tool across multiple loader ecosystems should consider a broader alternative. Its Gradle foundation also means it fits best when a project already follows a Gradle-based build approach. Developers who want Quilt metadata handling, dependency support, access wideners, interface injection, decompilation, and mappings in a free open-source tool should find the focus appropriate. Those prioritizing multi-loader coverage should look elsewhere.

Quilt Loom pros and cons

• Where it wins
  • Parses quilt.mod.json metadata and adds the Quilt Releases repository automatically
  • Supports jar-in-jar dependencies, transitive access wideners, and interface injection
  • Uses Quiltflower decompilation and applies Quilt Mappings automatically
• Where it doesn't
  • Supports the Quilt loader rather than multiple Minecraft mod loaders
  • Requires a Gradle-based project structure
  • Its feature set is focused on Quilt-specific mod development

Quilt Loom fact sheet, pricing and score →

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Last updated 7 Oct 2026 · How we research and update