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ACNH Save Editor
What ACNH Save Editor is
ACNH Save Editor is a free, open-source homebrew app for editing Animal Crossing: New Horizons save files on Nintendo Switch. It can change Wallet Bells, Bank Bells, Nook Miles, house loans and pocket items. The item database has more than 13,000 entries searchable by name with the Switch keyboard, while Favorites provides a paginated, alphabetized selection of 22 curated items. Users can clear a pocket slot or save and load up to five pocket loadouts on the SD card. Before each write, the app creates a byte-verified SD-card backup, and ZL rolls back to the last backup. It recalculates save hashes and checksums after changes and clamps edits to in-game maximums. The maker says the app works offline on-console, but warns save modification still carries risk. Version 1.4.0 edits only the primary resident, Villager0; multi-resident support is planned. Map editing and design-pattern preview are unavailable. Installation requires Atmosphère custom firmware, and the app must launch through Title Override or a forwarder rather than Album/Applet mode. Standard SD-card and DBI/MTP installation packages are available through GitHub Releases.
Who it suits
This editor suits Animal Crossing: New Horizons players using a Switch with Atmosphère who want to modify listed save values or pocket items. It is limited to the primary resident in version 1.4.0, and the maker cautions that save modification carries risk.
What it does well
- Edits Bells, Nook Miles, house loans and pocket items.
- Searches an item database of more than 13,000 entries.
- Creates byte-verified backups before writes.
- Supports rollback and recalculates save checksums.
What to know first
- Requires a Switch running Atmosphère custom firmware.
- Must launch through Title Override or a forwarder.
- Version 1.4.0 edits only the primary resident.
- Map editing and design-pattern preview are unavailable.
Limits
Version 1.4.0 edits only the primary resident, Villager0. Map editing and design-pattern preview are unavailable. The maker warns that save modification still carries risk.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| ACNH Save Editor | Free homebrew save editor; requires Nintendo Switch with Atmosphère custom firmware | Free |
As github.com lists them, read 9 Oct 2026. The maker's own page has the final word.
Getting started
- Open the project's GitHub Releases page.
- Choose the standard SD-card package or the DBI/MTP installation package.
- Install it on a Nintendo Switch running Atmosphère custom firmware.
- Launch through Title Override or a forwarder for full memory and SD-card access.
- Use the save editor offline on-console.
Verdict
ACNH Save Editor offers focused inventory and progression-value changes with backup and rollback safeguards. It is only for a specific homebrew setup, and save editing still carries risk.
Questions
Is ACNH Save Editor free?
Yes. It is listed as free and open source, with no free trial.
Which game and platform does it support?
It supports Animal Crossing: New Horizons on Nintendo Switch.
What can it edit?
It can edit wallet and bank Bells, Nook Miles, house loans and pocket items across the game's save files.
What does installation require?
The Switch must run Atmosphère custom firmware. The app must launch through Title Override or a forwarder for full memory and SD-card access.
Does it make backups?
Yes. It creates a byte-verified SD-card backup before each write and supports rollback to the last backup with ZL.
Who makes ACNH Save Editor?
The maker profile identifies Christopher Brown as a software developer and reverse engineer based in Texas, USA.
Facts from ACNH Save Editor's own pages
- Backups
- The editor creates byte-verified SD card backups before writes and offers ZL rollback to the last backup. · github.com, 8 Oct 2026
- Compatibility
- The README lists Animal Crossing: New Horizons version 3.0.3 as tested and says the editor handles personal.dat and main.dat. · github.com, 9 Oct 2026
- Distribution
- The maker provides standard SD-card and DBI/MTP installation packages through GitHub Releases. · github.com, 9 Oct 2026
- Economy editing
- It edits Wallet Bells, Bank Bells, Nook Miles, and the house loan across personal.dat and main.dat. · github.com, 9 Oct 2026
- Favorites
- The Favorites menu lists 22 curated items and sorts them alphabetically across pages. · github.com, 9 Oct 2026
- Installation options
- The maker provides a standard SD-card installation and a DBI/MTP installation package. · github.com, 8 Oct 2026
- Install requirement
- The Switch must run Atmosphère custom firmware, and the app must launch through Title Override or a forwarder rather than Album/Applet mode. · github.com, 8 Oct 2026
- Integrity handling
- The editor recalculates save checksums after modifications and describes an automatic repair loop for saves affected by older versions. · github.com, 9 Oct 2026
- Intended use
- The maker describes this as an educational project and says it is not affiliated with Nintendo. · github.com, 8 Oct 2026
- Item search
- Its native Switch keyboard can search a database of more than 13,000 items by name. · github.com, 9 Oct 2026
- Known gaps
- The README says map editing and design-pattern preview are unavailable, and turnip-price preview is under consideration. · github.com, 9 Oct 2026
- Known limit
- Version 1.4.0 edits only the primary resident, Villager0; multi-resident support is planned for a later version. · github.com, 8 Oct 2026
- Maker
- The maker profile identifies Christopher Brown as a software developer and reverse engineer based in Texas, USA. · github.com, 9 Oct 2026
- Pocket tools
- The editor includes a visual pocket-slot picker and supports saving and loading up to five custom pocket loadouts to the SD card. · github.com, 9 Oct 2026
- Purpose
- ACNH Save Editor is a native Nintendo Switch save editor for Animal Crossing: New Horizons. · github.com, 9 Oct 2026
- Requirements
- Installation requires a Switch running Atmosphère custom firmware, and the app must be launched through Title Override or a forwarder for full memory and SD-card access. · github.com, 9 Oct 2026
- Safety limits
- Edits are clamped to in-game maximums, and the app says it edits only items and values present in the base game. · github.com, 9 Oct 2026
- Save integrity
- It recalculates save hashes and checksums and automatically repairs hashes after modifications. · github.com, 8 Oct 2026
- Save protection
- Before each write, the app creates a byte-verified SD-card backup and supports rollback to the last backup with ZL. · github.com, 9 Oct 2026
- Security scope
- The app operates offline on-console and clamps edits to in-game maximums; its maker warns that save modification still carries risk. · github.com, 8 Oct 2026
- Support
- The README directs users with problems to open a GitHub Issue or ask in the GBATemp thread. · github.com, 9 Oct 2026
- Supported edits
- It edits wallet, bank, Nook Miles, house loan, and pocket items across the game's save files. · github.com, 8 Oct 2026
- Supported residents
- Version 1.4.0 edits only the primary resident, with multi-resident support described as planned for version 1.6. · github.com, 9 Oct 2026
Where ACNH Save Editor stands on Freedom251
- Game Save Editors#6 of 26