File Formats
Supported file formats in Mimir.
Map Formats
Section titled “Map Formats”Image Files
Section titled “Image Files”Standard image formats for battle maps:
| Format | Extension | Notes |
|---|---|---|
| PNG | .png |
Lossless; supports transparency |
| JPEG | .jpg, .jpeg |
Lossy compression; no transparency |
| WebP | .webp |
Efficient compression |
UVTT Format
Section titled “UVTT Format”Universal Virtual Tabletop format:
| Extension | .uvtt, .dd2vtt |
|---|---|
| Source | Dungeondraft, other VTT tools |
| Contents | Map image + grid data + walls |
UVTT files include:
- Embedded map image
- Grid size and offset
- Wall and door positions
- Light source data (some tools)
Dungeondraft Map
Section titled “Dungeondraft Map”Generated by Mimir’s mapgen system:
| Extension | .dungeondraft_map |
|---|---|
| Source | Mimir mapgen (from YAML config or biome preset) |
| Contents | Complete Dungeondraft map with terrain, walls, tokens |
Can be opened directly in Dungeondraft for editing or UVTT export.
Export Formats
Section titled “Export Formats”PDF Export
Section titled “PDF Export”Available for:
- Campaign and module documents
- Character sheets and battle cards
- Monster, spell, equipment, and trap cards
- Maps (preview and true-scale tiled pages)
- Token cutout sheets
See PDF Export for details.
Archive Export
Section titled “Archive Export”Campaign archive format:
.mimir-campaign.tar.gzarchive containing all campaign data- Maps, documents, characters, homebrew content
- Portable between installations; see Export Campaign
Character Data
Section titled “Character Data”Characters are stored in the Mimir database:
- Not exported as separate files
- Included in campaign archives (see Export Campaign)
- PDF export produces printable sheets
Import Sources
Section titled “Import Sources”D&D Content
Section titled “D&D Content”Mimir can import from:
- 5e.tools JSON format
- Official SRD content
Content is stored in the catalog database.