Debug Tools
Developer-focused tools for troubleshooting, cache management, and network diagnostics.
Developer Mode Enable verbose logging, show all API responses, and display hidden debug UI elements. Logs every network request and file operation.
API Endpoint Testing Test connectivity to Mojang, Microsoft, and Modrinth APIs. Diagnose authentication failures and network issues.
Cache Management Clear version manifests, mod metadata, texture caches, or all caches. Fixes corruption issues and frees disk space.
Configuration Reset Reset all settings to defaults without uninstalling. Useful for recovering from misconfiguration.
Database Access View and modify launcher's internal SQLite database. Advanced users only—incorrect edits can break the launcher!
Network Request Logging Monitor all HTTP/HTTPS requests with headers, payloads, and response codes. Debug download failures and API errors.
Modifying the database directly can corrupt your installations! Always backup launcher.db before editing.