Transmute

CLI tool for converting Magic: The Gathering collection CSV files between formats.

Features

• Convert collections between 16 different formats
• Auto-detect input format from CSV headers
• Optional Scryfall API integration to fill missing card data
• Simple command-line interface

Installation

pip install transmute-mtg

Or with uv:

uv tool install transmute-mtg

Usage

Convert between formats

# Basic conversion (auto-detect input format)
transmute convert my-collection.csv output.csv -o manabox

# Specify both input and output formats
transmute convert goldfish-export.csv moxfield-import.csv -i mtggoldfish -o moxfield

# Fill missing card data via Scryfall API
transmute convert collection.csv output.csv -o helvault --scryfall

List supported formats

transmute formats

Auto-detect a file's format

transmute detect mystery-file.csv

Supported Formats

Format	CLI Name	Documentation	Notes
Archidekt	archidekt	Help	Flexible columns, Scryfall ID support
Card Kingdom	cardkingdom	Buylist	Simple 4-column format for selling
Cardsphere	cardsphere	FAQ	Trading platform with Scryfall ID
Deckbox	deckbox	Help	Uses full set names (not codes)
Decked Builder	deckbuilder	—	Separate regular/foil quantities
Deckstats	deckstats	Import	0/1 for foil status
DragonShield	dragonshield	App Guide	Card scanner app with folder support
Helvault	helvault	App	Requires Scryfall IDs
ManaBox	manabox	Guide	Popular mobile app
Moxfield	moxfield	Import/Export	Popular deck builder
MTGGoldfish	mtggoldfish	Export Help	Supports FOIL/REGULAR/FOIL_ETCHED
MTG Manager	mtgmanager	—	Numeric codes for condition/language
MTGO	mtgo	Support	Magic Online format
MTGStocks	mtgstocks	Site	Price tracking site
MTG Studio	mtgstudio	Site	Simple Yes/No foil format
TCGPlayer	tcgplayer	Bulk Entry	Includes Product ID/SKU

Data Considerations

When converting between formats, some data may be lost or unavailable depending on the source and target formats.

Missing Data Without Scryfall

Without the --scryfall flag, transmute only uses data present in the source file. This means:

• Set names may be missing if the source only has set codes (or vice versa)
• Scryfall IDs required by Helvault won't be populated unless present in the source
• Collector numbers may be absent, causing some apps to show generic card images
• Oracle IDs needed for some advanced features won't be available

Using --scryfall enables API lookups to fill these gaps, but adds processing time and requires internet access.

Format-Specific Limitations

Target Format	Limitation
Helvault	Requires scryfall_id - use --scryfall if source lacks it
Deckbox	Needs full set names, not codes
TCGPlayer	Product ID/SKU only preserved if present in source
MTG Manager	Condition/language converted to numeric codes (may lose precision)

Recommended Workflow

For best results when converting to formats that require rich metadata:

# Use Scryfall to fill missing data
transmute convert collection.csv output.csv -o helvault --scryfall

Python API

You can also use transmute as a library:

from pathlib import Path
from transmute.converter import Converter
from transmute.formats import FormatRegistry

# Convert a file
converter = Converter(use_scryfall=True)
converter.convert(
    input_path=Path("collection.csv"),
    output_path=Path("output.csv"),
    input_format="mtggoldfish",
    output_format="manabox",
)

# Read a collection
handler = FormatRegistry.get("helvault")
collection = handler.read(Path("helvault-export.csv"))

for entry in collection:
    print(f"{entry.quantity}x {entry.card.name} ({entry.card.set_code})")

CSV Format Examples

Helvault

collector_number,extras,language,name,oracle_id,quantity,scryfall_id,set_code,set_name
"136","foil","en","Goblin Arsonist","c1177f22-...","4","c24751fd-...","m12","Magic 2012"

Unique aspects:

• Requires scryfall_id for each card (use --scryfall flag when converting to this format)
• Foil status stored in extras field as "foil" string
• Language uses ISO codes (en, de, ja, etc.)

MTGGoldfish

Card,Set ID,Set Name,Quantity,Foil,Variation,Collector Number,Scryfall ID
Aether Vial,MMA,Modern Masters,1,REGULAR,"",212,abc123...
Anax and Cymede,THS,Theros,4,FOIL,"",186,def456...

Unique aspects:

• Foil is an enum with three values: FOIL, REGULAR, FOIL_ETCHED
• One of few formats that distinguishes etched foils
• Variation field for special printings (extended art, showcase, etc.)
• Supports Collector Number and Scryfall ID for precise card identification

ManaBox

Name,Set code,Set name,Collector number,Foil,Rarity,Quantity,Scryfall ID,Condition,Language
Lightning Bolt,m10,Magic 2010,146,foil,Common,4,abc123...,NM,en

Unique aspects:

• Includes both set code and set name
• Has optional Scryfall ID (useful for preserving exact printings)
• Foil is simply "foil" or empty string

Moxfield

Count,Tradelist Count,Name,Edition,Condition,Language,Foil,Alter,Proxy,Purchase Price,Collector Number
4,2,Lightning Bolt,m10,NM,English,foil,,,,146

Unique aspects:

• Separate Tradelist Count column for cards available for trade
• Tracks altered and proxy cards
• Edition uses lowercase set codes
• Supports Collector Number for precise card identification

DragonShield

Folder Name,Quantity,Trade Quantity,Card Name,Set Code,Set Name,Card Number,Condition,Printing,Language
Binder,4,0,Lightning Bolt,M10,Magic 2010,146,NearMint,Foil,English

Unique aspects:

• Supports folder organization via Folder Name
• Condition uses concatenated format: NearMint, LightlyPlayed (no spaces)
• Includes price columns: LOW, MID, MARKET

TCGPlayer

Quantity,Name,Simple Name,Set,Card Number,Set Code,Printing,Condition,Language,Rarity,Product ID,SKU
1,Verdant Catacombs,Verdant Catacombs,Zendikar,229,ZEN,Normal,Near Mint,English,Rare,33470,315319

Unique aspects:

• Has both Name (with variant info) and Simple Name (base card name)
• Includes TCGPlayer-specific Product ID and SKU for marketplace integration
• Set is full name, Set Code is abbreviation

Deckbox

Count,Tradelist Count,Name,Edition,Card Number,Condition,Language,Foil,Signed
4,4,Angel of Serenity,Return to Ravnica,1,Near Mint,English,,,

Unique aspects:

• Edition must be the full set name (e.g., "Return to Ravnica", not "RTR")
• Foil column uses "foil" or empty string
• Supports signed card tracking

MTGO

Card Name,Quantity,ID #,Rarity,Set,Collector #,Premium
Banisher Priest,1,51909,Uncommon,PRM,1136/1158,Yes

Unique aspects:

• Magic Online format with unique ID # for digital cards
• Premium uses Yes/No for foil status
• Collector numbers may include / notation (e.g., "1136/1158")

MTGStocks

"Card","Set","Quantity","Price","Condition","Language","Foil","Signed"
"Advent of the Wurm","Modern Masters 2017",1,0.99,M,en,Yes,No

Unique aspects:

• Price tracking site format with embedded price data
• Foil and Signed use Yes/No strings
• Condition uses single letters (M, NM, LP, etc.)

Deckstats

amount,card_name,is_foil,is_pinned,set_id,set_code
1,"Abandon Reason",0,0,147,"EMN"

Unique aspects:

• Uses 0/1 integers for boolean fields (is_foil, is_pinned)
• Has both set_id (Deckstats internal ID) and set_code
• is_pinned marks cards locked to specific printings

MTG Manager

Quantity,Name,Code,PurchasePrice,Foil,Condition,Language,PurchaseDate
1,"Amulet of Vigor",WWK,18.04,0,0,0,5/6/2018

Unique aspects:

• Uses numeric codes for Condition: 0=Mint, 1=NM, 2=LP, 3=MP, 4=HP, 5=Damaged
• Uses numeric codes for Language: 0=English, 1=German, 2=French, etc.
• Tracks purchase history with PurchasePrice and PurchaseDate

Archidekt

Quantity,Name,Set Code,Set Name,Collector Number,Condition,Language,Foil,Scryfall ID,Oracle ID
4,Lightning Bolt,m10,Magic 2010,146,NM,en,false,e3285e6b-...,abc123...

Unique aspects:

• Very flexible column format (minimal required columns)
• Supports Scryfall ID and Oracle ID for precise card identification
• Boolean foil field accepts various formats

Cardsphere

Count,Name,Edition,Edition Code,Scryfall ID,Condition,Language,Foil
1,Lightning Bolt,Magic 2010,m10,e3285e6b-...,NM,English,false

Unique aspects:

• Trading platform format with both edition name and code
• Includes Scryfall ID for precise matching
• Used primarily for offer/want list management

Card Kingdom

Name,Edition,Foil,Qty
Lightning Bolt,Magic 2010,,4

Unique aspects:

• Simple 4-column format designed for buylist submissions
• Edition is full set name
• Foil is "Foil" or empty

Decked Builder

Name,Edition,Reg Qty,Foil Qty
Lightning Bolt,M10,4,1

Unique aspects:

• Separate quantity columns for regular and foil copies
• Useful when tracking both versions of the same card
• Edition uses set codes

MTG Studio

Name,Edition,Qty,Foil
Lightning Bolt,M10,4,Yes

Unique aspects:

• Simple format with Yes/No foil values
• Edition uses set codes
• Minimal column set for basic collection tracking

Development

# Clone and install
git clone https://github.com/oflannabhra/transmute.git
cd transmute
uv sync

# Run tests
uv run pytest

# Lint
uv run ruff check src/ tests/

# Format
uv run ruff format src/ tests/

License

MIT License - see LICENSE for details.