Pkmn-chest

Features

Loading save files from DSi SD, Flashcard SD, and retail cartridges
Storing up to 50 or 500 boxes of Pokémon per chest with support for multiple chests
Editing most Pokémon, trainer, and other save data
Editing items in the bag
Injecting pk* files from SD
Dumping Pokémon to pk4/pk5 files
Translated to English, French, German, Indonesian, Italian, Japanese, Korean, Lithuanian, Portuguese, Russian, and Spanish

Download the file
Copy pkmn-chest.nds to your SD card
If you see a nitroFSInit() failed... error then place a copy of pkmn-chest.nds at sd:/_nds/pkmn-chest/pkmn-chest.nds

What's new:

Added Party Pokémon management from within the box screen
- This means you can now move Pokémon to / from the party
- Also removed the Party menu from the X Menu
You can now type using the buttons
- Controlled with D-Pad + face buttons with L/R for modifiers
- Letter arrangement and 4 / 8 direction modes configurable in settings
You can now type Hangul
- The input should work exactly the same as macOS 10.14's 2-Set Hangul input, including combining things into groups of 3+ letters, but as many of the more complex letter groups aren't in the font they won't show, once you type the next letter to split it out it'll show back up, though (ex. 퐄 won't show, but on typing ㅔ it'll split to 포케)
A preview of the flick character is now shown on 10-key keyboards
The missing letters from Lithuanian and Russian have been added
- Cyrillic was completely redesigned to better match the style of the Latin letters
You can now browse in subdirectories when injecting from pk* files
You can now edit the items in your bag!
You can now filter Pokémon based on types, stats, etc
You can now sort Pokémon based on types, stats, etc
Added a notice to close and reopen the console if saving freezes

Changes:

Changing つ's form now goes つ → っ → づ instead of つ → づ → っ
Slot-1 isn't scanned when a flashcard is being used
- Fixes some flashcards such as the R4i Gold 3DS Plus
The kerning on many characters have been improved
Light background lists now have dark backgrounds so as not to need two graphics for lists
Config has been changes to use a .json file instead of a .ini
- This means your settings from v1.0 won't be able to be loaded
Switched background graphics to use 256 color layers and graphics
- This means flashcards and DSi SD can now both use all graphics as it freed up a lot of RAM
Added Indonesian translation

Bug fixes:

What's new:

Added editing a Pokémon's held item
Box wallpapers are now supported and can be edited
Added Portuguese and Lithuanian* translations
- *Some characters used in the Lithuanian translation don't have graphics yet
Changing a Pokémon's gender now makes sure the gender is possible for that Pokémon
- Changing species also makes sure to use a valid gender
The system language is now used as the default language
Added Twinleaf Town's song and re-added Pokémon Center gen. 5's song
- (a new mod of the gen. 5 pokécenter song)

Changes:

Backups are now saved named the current date and time in a folder for the save
The sound effects and music volumes have been lowered to ~75%
Flashcards are now able to use more proper graphics due to some RAM savings
On flashcards chests are now limited to 50 boxes (they use too much RAM if you go higher)
Money now has a Pokédollar symbol
Updated the nitroFSInit() failed message
Box top bar can now be touched to bring up the menu

Bug fixes:

Changelogs from beta versions can be found on GitHub:

devkitPro, WinterMute: devkitARM, libnds, and libfat.
edo9300: ndsi-savedumper's gamecard save dumping and injecting code
Flagbrew, piepie62: PKSM, PKSM-Core's save and bank management code
Kurt: PKHeX which was a major reference for the generation 3 code
Pokedoc: savegame-manager's GBA save dumping and injecting
RocketRobz: Adding flashcard and SD being used together and code from TWiLight Menu++
StackZ: Idea to make a Pokémon Bank for the DS(i]
TotallyNotGuy: Finding & making graphics and the Pokémon Center generation 4 song