RPG Maker MZ Save Editor

What is an .rmmzsave editor?

An .rmmzsave editor opens a compatible RPG Maker MZ save slot, displays its stored values, and rebuilds the file after an edit. SaveFileTool lets you do this online while keeping the save contents on your device. Select the numbered slot above, review the detected money value, and download your edited copy with its original backup. No account or software installation is required to use the editor.

MZ saves can hold currency, actor data, equipment, event flags, and the state of the current map. The editor cannot tell you what every field means in every game. Start with the gold or money field, which is the tested editing workflow. A game may call that currency Gems, coins, or something else. The label in its menu can differ from the field used by the engine.

Where to find RPG Maker MZ save files

In many desktop MZ games, the numbered saves are inside a save/ directory beneath the game folder. Locate the installed game, create a fresh save in a known slot, then look for a file such as file1.rmmzsave whose modification time matches that action. A shortcut on your desktop may point somewhere else; open the installation directory rather than searching only beside the shortcut.

Packaging and save-location plugins can change the directory layout. Some installations place the project inside another folder, while a developer may deliberately store saves outside the installation. If the expected folder is empty, consult the game's documentation and search the relevant game directories for *.rmmzsave. When multiple copies exist, use a new save and its timestamp to identify the active one before replacing anything.

Choose a numbered progress slot, not config.rmmzsave or global.rmmzsave. Those files manage settings and save-list information rather than the party's progress. Also note that MZ can use slot zero for an autosave; a manual slot is easier to identify and control when testing an edit. Keep a copy in a separate folder, with a note of which installation and slot it came from.

A browser-hosted MZ game usually keeps saves in browser-managed storage, such as IndexedDB, rather than creating a selectable file in Downloads. That is a different access path from a desktop save folder. Look for the game's own export function or documented backup procedure. This page's file picker needs an actual .rmmzsave file; choosing the game's web page or clearing browser storage will not export your progress.

Edit MZ money with a controlled backup workflow

Before editing, note the currency displayed in the game's menu and save manually. Exit the game, copy the numbered file to a backup folder, and select the working copy here. Check that the detected amount matches the slot you intended to change. A mismatch is a reason to inspect the file location or slot, rather than immediately replacing the number.

Change only money on your first attempt and choose an amount that makes sense for the game. Download the package, extract it, and use the rebuilt numbered file. The zip also includes an unchanged original backup and instructions. A zip archive is not a game save, and the backup-prefixed filename is not the numbered slot the game expects to load.

With the game closed, put the edited file in the active save directory under its original slot name. Restart, load that slot, and check the currency, party, and current location. Continue briefly to confirm that normal events still work. Retain the backup even after a successful load; it gives you a recovery point if you discover an issue later.

A real MZ game test: Gems in Haven

Our recorded MZ verification used a real desktop save from Haven: Secret of Caledria. After editing its money value, the game was restarted and the save loaded. The game menu showed Gems 999,999 at Olund Fort. Olund Fort is the in-game location in that record, not the game's title. This provides a game-load check beyond simply displaying a number in a parser.

Separate regression checks cover rebuilding a save without changes and exporting a gold-only change while preserving the other decoded fields. The original backup in the download package is checked byte for byte against the selected file. A rebuilt compressed save can have different bytes while representing the same data, so data preservation and an unchanged backup are distinct checks.

This is evidence for the tested money workflow in that game save. It does not verify every Haven feature, every MZ release, or every plugin configuration. Actor levels, inventory, variables, and switches remain candidate edits here. Use your game's own loading behavior as the final check, especially when working with a long-running playthrough.

MZ .rmmzsave and MV .rpgsave are different formats

MZ's standard save workflow serializes game data and compresses it using pako. MV's standard .rpgsave workflow instead uses LZString compression with Base64 encoding. Although both engines can store familiar things such as party money and inventory, their file representations differ. Renaming an MV file to end in .rmmzsave does not translate its compression or make it an MZ slot.

Use this RPG Maker MZ save editor online for actual .rmmzsave files. If the original extension is .rpgsave, follow the RPG Maker MV save editor link instead. Each public page checks its own extension before parsing. Older RPG Maker formats, executables, and project archives are outside this page's accepted inputs, even if they were downloaded with an RPG Maker game.

Why plugins and custom saves may not work

A developer can alter MZ's save process with plugins, including where files are written, which objects are stored, or whether the contents are encrypted. Some games implement their own currencies rather than using the party's standard money field. A familiar extension therefore identifies where to start, but it does not guarantee a compatible structure or the meaning of every number you see.

If a file is rejected, confirm its original extension and try a fresh manual slot from the same game. If it opens but the edited copy will not load, restore the backup and attempt a smaller money-only change. Avoid repeatedly changing unknown fields to force a result. A custom structure may require game-specific investigation rather than a larger edit.

Privacy, backups, and the 10 MB limit

The save-editing workflow reads and rebuilds your selected file in the browser. Save contents are not sent to a server as part of choosing, editing, or downloading the slot. Optional local history can retain copies in browser storage on your device. That history is separate from the game's directory and is not a substitute for a backup you can restore directly through your file manager.

The file limit is 10 MB. Select the save itself rather than an entire project, exported game, or archive. If an actual .rmmzsave exceeds the limit, it may include substantial custom data; deleting arbitrary sections is not a safe way to make it smaller. Keep the full original and check the game's save guidance before proceeding.

RPG Maker MZ save editing questions

Why does my game call the money Gems instead of gold?

Developers can customize the displayed currency name. In the Haven test, the menu label was Gems while the edited value was the party's money field. Compare the detected amount with your game's menu. If they differ, the game may use a separate currency system, so do not assume the gold field controls the resource you want.

Should I edit the autosave or a manual slot?

Start with a manual slot you can select explicitly on the load screen. An autosave may be replaced as you continue playing or enter a new area. A known manual slot and a separate backup make it easier to determine whether the game loaded your edited copy.

Why did the downloaded save appear not to change anything?

Confirm the active installation, slot filename, and directory. Extract the package before copying the edited file, and restart the game before loading it. A running game or cloud synchronization can replace a disk file with an older version. Compare modification times and the menu's currency rather than relying on the download filename alone.

Does Folder Mode make inventory or quest edits verified?

Folder Mode can read names from the game's JSON data files, helping you recognize actor, item, variable, and switch IDs. Those names provide context, not a guarantee that an edit fits the game's current state. Quest flags may depend on other events. Test candidate fields individually in a spare slot and preserve your main progress backup.

How do I recover from a save that will not load?

Exit the game and replace the edited numbered file with the original backup, keeping the expected slot name. Verify that the restored slot loads before trying again. Keep any failed export separate from the working copy, and avoid making more changes to the only backup of your playthrough.