3DS CodEdit

3DS CodEdit
General
Author	dcuevasa
Type	Utilities
Version	1.0.0
License	N/A
Last Updated	2026/03/30
Links
Download
Website
Source

3DS CodEdit is a code-first editor and project workspace for Nintendo 3DS.

It combines a lightweight multi-tab text editor, project Git workflow, file manager tools, and a monochrome draw mode for quick PBM assets.

Features

Code editing on-device

• Multi-tab text editor (up to 4 open documents).
• Create, open, edit, save, and save-as files directly on SD.
• Line-based editing with cursor movement, line numbers, and visible cursor position (Ln/Col).
• Fast editing actions from buttons and top menu:
  • edit current line with OSK,
  • insert newline,
  • close/switch tabs,
  • find next text match,
  • undo/redo support.
• Sidebar workflow for project files: open files/folders, create new file/folder, go to parent directory.

Integrated Git + GitHub workflow

• Local Git actions:
  • init repository,
  • add all,
  • commit staged changes,
  • staged file counter and branch display.
• GitHub actions:
  • probe remote,
  • clone to current path,
  • fetch,
  • pull (fast-forward),
  • push,
  • personal access token storage.
• Example repository with commits made from 3DS CodEdit:
  • https://github.com/dcuevasa/this_repo_gets_commits_from_a_3ds
• .gitignore support in add-all and push file scanning.
• Multi-repository safety improvements:
  • repository-local remote/branch state is preferred,
  • Root* warning when operating from a subfolder,
  • double-confirm guard for root-scope actions.

Draw mode for pixel assets (.pbm)

• Built-in black/white canvas editor (stylus pen + eraser).
• Create new drawings from editor sidebar (DRAW).
• Open existing .pbm files from Explorer or editor sidebar.
• Save as PBM (P4) and return to Git workflow for commit/push.

File and system

• Explorer with storage usage bar, icons, and multi-select.
• File operations: create, rename, delete, copy, move, and batch operations.
• Archive extraction support (.zip, .rar, .7z, .lzma).
• Image viewer with zoom/pan and image properties.
• Search and quick jump to a path.
• Optional CTRNAND browsing/copying in developer options.
• Sorting modes: alphabetical (asc/desc) and size (largest/smallest).
• Dark theme, updater, and persistent config (last_dir, sort mode, Git defaults, token).

Quick navigation notes

• Home icon toggles between Explorer and editor.
• In Explorer, SELECT also returns to editor.
• In editor, SELECT opens/closes the top menu (File, Edit, Search, View, Project).
• Project opens the Git panel.

Installation

Option A: Install 3DSX (Homebrew Launcher)

• Download 3DS_CodEdit.3dsx from Releases.
• Power off your 3DS and insert the SD card into your PC.
• Copy the file to the SD card in the path.
• Put the SD card back in the 3DS and launch it from Homebrew Launcher.

Option B: Install CIA (Home Menu)

• Download 3DS_CodEdit.cia from Releases.
• Copy the .cia file to any folder on your SD card.
• Open FBI on your 3DS.
• Navigate to the .cia file and choose Install CIA (or Install and delete CIA).
• Return to HOME Menu and launch 3DS CodEdit like a regular installed app.

Controls

Editor: Circle Pad - Cursor

D-Pad Up/Down - Navigate file browser

D-Pad Left - Parent folder

D-Pad Right - Close tab

A - Run

B - Backspace

X - Edit current line

Y - New line

L/R - Switch tab

Select - Menu

Screenshots

External links

• GitHub - https://github.com/dcuevasa/3DS_CodEdit
• Universal-DB - https://db.universal-team.net/3ds/3ds_codedit