Ravel Remapper
Ravel Remapper is an IntelliJ IDEA plugin for changing mappings in Java and Kotlin source files.
What Ravel Remapper is
Ravel Remapper is an IntelliJ IDEA plugin for changing mappings in Java and Kotlin source files. It is built on IntelliJ’s Program Structure Interface (PSI) and Mapping-IO, and is aimed at developers migrating mappings in Fabric mod projects. The supported formats include Mixins, Class Tweakers, and Access Wideners; MixinExtras Expressions are not supported. To run a remap, open the action from the editor’s Refactor menu, choose mapping files and source and destination namespaces, select modules, and start the operation. Mapping files can be added manually or downloaded in the dialog, and users can select individual modules or include all of them. The tool can be used to migrate between Yarn and Mojang mappings. After remapping, the project advises searching for TODO(Ravel) and fixing any flagged issues manually, and recommends committing changes beforehand. Ravel is free and MIT-licensed, with Linux, macOS, and Windows listed. It is available through JetBrains Marketplace or as a ZIP from GitHub Releases; the latest listed release is 0.6.4.
Good
- Supports Java and Kotlin source files.
- Handles Mixins, Class Tweakers, and Access Wideners.
- Mapping files can be downloaded or added manually.
- Available on Linux, macOS, and Windows.
Watch out
- MixinExtras Expressions are not supported.
- Flagged TODO(Ravel) issues need manual fixes.
Who it suits
Ravel suits developers working with Java or Kotlin source in Fabric mod projects who need to migrate mappings. It is for IntelliJ IDEA users comfortable reviewing and correcting issues after a remap.
Verdict
Ravel provides a focused mapping migration workflow inside IntelliJ IDEA, with several supported formats and mapping inputs. Plan to review the remapped source manually and commit changes before starting.
Plans and prices
From Ravel Remapper's own pricing page, checked 9 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | IntelliJ IDEA plugin · MIT-licensed |
The facts
Each one read from Ravel Remapper's own pages, with the date it was checked.
What it does
- Audience
- The project documentation presents Ravel for developers migrating mappings in Fabric mod source projects.checked 9 Oct 2026
- How it works
- Ravel is based on IntelliJ PSI and Mapping-IO.checked 9 Oct 2026
- Implementation
- It is based on IntelliJ's Program Structure Interface (PSI) and Mapping-IO.checked 4 Oct 2026
- Installation
- Ravel is available from JetBrains Marketplace or as a ZIP from GitHub Releases for installation from disk.checked 9 Oct 2026
- Languages
- It supports remapping Java and Kotlin source files.checked 9 Oct 2026
- Latest listed release
- The GitHub Releases page lists version 0.6.4 as the latest release.checked 4 Oct 2026
- License
- The repository provides the software under the MIT License.checked 9 Oct 2026
- Manual review
- The documentation advises reviewing code after remapping and searching for TODO(Ravel) markers to find detected problems.checked 9 Oct 2026
- Mixin support
- It supports Mixins and MixinExtras, but not MixinExtras Expressions.checked 9 Oct 2026
- Module selection
- Users can select individual modules or add all modules for remapping.checked 9 Oct 2026
- Other formats
- It supports Class Tweakers and Access Wideners.checked 9 Oct 2026
- Precaution
- The project recommends committing changes before remapping source files.checked 4 Oct 2026
- Product
- Ravel is an IntelliJ IDEA plugin for remapping source files.checked 9 Oct 2026
- Security
- The repository's Releases page shows verified committer signatures for listed releases.checked 9 Oct 2026
- Supported formats
- Ravel supports Mixins, Class Tweakers, and Access Wideners; MixinExtras Expression is not supported.checked 4 Oct 2026
- Supported languages
- Ravel supports remapping Java and Kotlin source files.checked 4 Oct 2026
- Workflow
- Users open the remapping action from the editor's Refactor menu, select mappings and modules, and run the remap.checked 4 Oct 2026
Where it runs
- Mapping files
- Users can add mapping files and choose source and destination namespaces for remapping.checked 9 Oct 2026
- Mapping input
- Users can add mapping files manually or use the download option in the remapping dialog.checked 4 Oct 2026
- Mapping migration
- Fabric documentation describes using Ravel to migrate between Yarn and Mojang mappings.checked 9 Oct 2026
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