[Load .rpgsave] → [Base64 decode] → [Parse JSON] → [Data model (mutable)] ↑ ↓ [Write .rpgsave] ← [Base64 encode] ← [Serialize JSON] ← [Apply user edits]
Most "proper" editors will allow you to adjust the following standard RPG Maker MV components: rpg maker mv save editor exclusive
Technical Foundations: how MV saves work RPG Maker MV stores game state in JSON-based save files, usually compressed and serialized as base64 strings inside the browser-local storage or as files in desktop builds. These save files capture party state, map position, switches/variables, inventory, actor data, and plugin-related state. Because the save format is text-first and JavaScript-driven, it is unusually approachable for third-party tools: a simple parser can load JSON, present fields in a GUI, allow edits, and write a new save back in the engine’s expected structure. Advanced tools allow users to modify nearly every
Advanced tools allow users to modify nearly every aspect of their playthrough: present fields in a GUI