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ACNH Save Editor
What it is
ACNH Save Editor is a free, open-source homebrew app for editing Animal Crossing: New Horizons save data on Nintendo Switch. It can change wallet and bank Bells, Nook Miles, house loans, and pocket items. Players can search an item database of more than 13,000 entries using the Switch keyboard, or browse 22 curated items in an alphabetized, paginated Favorites menu. Pocket tools let users select or clear a slot and save or load up to five loadouts on the SD card. Before a write, the app creates a byte-verified SD-card backup, and ZL can roll back to the latest backup. It recalculates save checksums and hashes after changes, with automatic hash repair. Edits are capped at in-game maximums and apply only to base-game items and values. Version 1.4.0 edits only the primary resident, Villager0; map editing and design-pattern preview are unavailable. It operates offline on-console, but the maker warns that save modification still carries risk. Use requires Atmosphère custom firmware and launching through Title Override or a forwarder.
For and against
For
- Edits Bells, Nook Miles, loans, and pocket items.
- Searches a database of more than 13,000 items.
- Creates byte-verified backups before writes.
- Supports rollback to the last backup with ZL.
- Runs offline on-console.
Against
- Requires Atmosphère custom firmware.
- Must launch through Title Override or a forwarder.
- Version 1.4.0 edits only the primary resident.
- Save modification still carries risk.
The verdict
ACNH Save Editor offers item and progression-value edits with backups and checksum handling, but it requires a modified Switch setup. Consider its resident limit and the maker’s warning about save-modification risk before using it.
Who it suits
This is for Animal Crossing: New Horizons players using a Nintendo Switch with Atmosphère custom firmware who want to edit save values or pocket items. It is not suited to multi-resident editing in version 1.4.0.
Plans and prices
ACNH Save Editor
Free homebrew save editor; requires Nintendo Switch with Atmosphère custom firmware
Read 9 Oct 2026 · github.com
On the record
- Backups
- The editor creates byte-verified SD card backups before writes and offers ZL rollback to the last backup.github.com · read 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 · read 9 Oct 2026
- Distribution
- The maker provides standard SD-card and DBI/MTP installation packages through GitHub Releases.github.com · read 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 · read 9 Oct 2026
- Favorites
- The Favorites menu lists 22 curated items and sorts them alphabetically across pages.github.com · read 9 Oct 2026
- Installation options
- The maker provides a standard SD-card installation and a DBI/MTP installation package.github.com · read 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 · read 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 · read 9 Oct 2026
- Intended use
- The maker describes this as an educational project and says it is not affiliated with Nintendo.github.com · read 8 Oct 2026
- Item search
- Its native Switch keyboard can search a database of more than 13,000 items by name.github.com · read 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 · read 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 · read 8 Oct 2026
- Maker
- The maker profile identifies Christopher Brown as a software developer and reverse engineer based in Texas, USA.github.com · read 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 · read 9 Oct 2026
- Purpose
- ACNH Save Editor is a native Nintendo Switch save editor for Animal Crossing: New Horizons.github.com · read 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 · read 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 · read 9 Oct 2026
- Save integrity
- It recalculates save hashes and checksums and automatically repairs hashes after modifications.github.com · read 8 Oct 2026
