Pandora Launcher

• Cross-instance file syncing. Synchronizes game options, saves, and configuration files across different Minecraft instances. This function eliminates the need to manually copy folders between installations. Changes made in one instance appear in another after synchronization, which helps maintain consistency when testing multiple mod configurations.
• Mod deduplication via reflinks. When identical mods are installed through the launcher in multiple instances, the launcher creates reflinks or hard links instead of duplicating files. This approach reduces storage consumption significantly. The file system references the same data blocks, while each instance retains its own directory structure.
• Secure account credential management. Stores Minecraft account tokens and login data using operating system keyrings. Credentials are not saved in plain text configuration files. The launcher delegates encryption and access control to native platform security components, such as Windows Credential Manager, macOS Keychain, or Linux Secret Service.
• Uncapped live game log output. Displays the game log stream without truncation or rate limiting. The output updates in real time while the game runs. Users can inspect full startup sequences, mod loading events, and runtime errors without opening external log files. Sensitive information such as access tokens is removed automatically before display.
• Content browser for Modrinth and CurseForge. Provides a built-in interface for searching and installing mods directly from two major mod repositories. The browser communicates with official APIs and does not rely on intermediate caching servers. Mod availability updates immediately when new versions are published.
• Modpack management system. Uses a unique approach to modpack creation and updating. Modpacks are defined as structured collections that can be versioned and shared. The launcher resolves dependencies and applies updates without requiring complete reinstallation of the pack.
• Automatic redaction of sensitive information. Scans game logs and launcher output for access tokens, session identifiers, and other confidential data. Detected values are replaced with placeholder text before logs are displayed or saved. This prevents accidental credential exposure when sharing logs for troubleshooting.
• Native application architecture. Built without Electron or Tauri frameworks. The launcher runs as a compiled native binary for the target operating system. This design reduces memory overhead and startup time compared to web-based launcher shells. The interface remains responsive even with large mod collections.
• No third-party metadata servers. All mod metadata is fetched directly from Modrinth and CurseForge APIs. The launcher does not depend on intermediate aggregation services that can introduce downtime or delays. When Minecraft updates, mod data becomes available as soon as the upstream repositories publish it.
• Optional sandboxing. Provides a sandboxing mode that restricts mod file system access. Sandboxing prevents mods from reading or writing outside designated instance directories. This feature reduces the risk of malicious or faulty mods affecting other applications or user files on the system.

Pandora Launcher was created by Moulberry, a developer known for Minecraft modding projects. Development began in 2023 as a response to limitations in existing launchers. The program is written in Kotlin, a statically typed language running on the Java Virtual Machine. The choice of Kotlin allows native compilation while maintaining compatibility with Minecraft's Java-based ecosystem.