DMG DarkRoom

Game Boy Camera darkroom — in your browser. Load .sav or .srm files, browse your photos, apply palettes and effects, and export.

→ dmgdarkroom.allmyfriendsarejpegs.com

---

Features

Palettes

• 100+ colour palettes: DMG, GBC, SGB, and Lospec community palettes
• Custom palette editor with .pal / .gbp import/export
• Palette favourites, palette grid visualiser, and random palette picker

Effects & tone

• CRT, LCD grid, halftone, dot matrix, phosphor glow, chromatic aberration, vignette, noise/static, VHS ghosting, and scanline jitter — each with granular per-filter controls
• GB Printer thermal-paper emulation, cart-corruption tile glitch, photocopied-zine look, and Bayer / Floyd–Steinberg / Atkinson dithering
• Brightness, contrast, and split toning (shadow/highlight colour with intensity and balance)

Border frames

• 21 authentic Game Boy Camera border frames, palette-colorized to match your chosen palette
• Enable per-photo or globally; frame selection and on/off state saved in presets and project files
• Frames sourced from gb-cam-lab

Editing

• Apply palettes, effects, and borders per-photo or globally across your whole roll
• Copy and paste settings between photos
• Effect presets — save, load, import and export as JSON (borders included)
• Per-photo rotate and flip
• Undo support

Export

• Batch PNG export at any scale with palettes and effects applied
• Animated GIF builder — drag-to-reorder frames, per-frame palette, optional border frames, bounce mode, loop controls
• Contact sheet — all 30 photos in one image

Loading

• Drag and drop .sav or .srm files, or open from file
• Analogue Pocket SD card support
• Save and reload project files (.gbcp)

Recovery & album

• Photos display in their true in-camera album order (bank 0 state vector)
• Deleted-photo recovery — photos deleted in-camera but not yet overwritten are shown with a "recovered" badge
• Hidden "last seen" image from the start of SRAM shown as an extra slot (LS)
• Photo metadata decoded from the save: photographer name, gender, birthdate, comment, and link-cable copy flag (shown in solo view and lightbox)

Import & blend

• Import any image into an empty photo slot — cover-cropped to 128×112 and dithered to 4 shades (choice of Bayer, Floyd–Steinberg, or Atkinson), written back with thumbnail, metadata, and album entry
• Blend two photos into a new slot — double-exposure average, darken, lighten, or difference
• Export the modified .sav for use in emulators, flash carts, and other tools

---

Keyboard shortcuts

Navigation

Key	Action
← / →	Previous / next photo
↑ / ↓	Previous / next row (grid view)
G	Switch to grid view
S	Switch to solo view
F	Open fullscreen presentation (or close)
Escape	Close presentation / lightbox / solo mode

Photo transforms (requires a photo selected)

Key	Action
R	Rotate clockwise
L	Rotate counter-clockwise
H	Flip horizontal
V	Flip vertical

Editing

Key	Action
Cmd/Ctrl+Z	Undo
Shift+Cmd/Ctrl+Z	Redo
Cmd/Ctrl+C	Copy settings
Cmd/Ctrl+V	Paste settings
Cmd/Ctrl+A	Select all photos
P	Toggle before/after effects preview
Space	Toggle GIF frame selection (in GIF mode)

Palettes

Key	Action
-	Previous favourite palette
+	Next favourite palette

---

Usage

Open dmgdarkroom.allmyfriendsarejpegs.com in Chrome or Edge for the best experience (full File System Access API). Firefox and Safari work with standard file pickers.

No installation. No sign-up. Runs entirely in your browser — and works offline once loaded (installable as a PWA).

---

Technical notes

• Game Boy Camera SRAM: 128KB, photos at 0x2000, 30 slots × 3584 bytes, 128×112px 2bpp
• Bank 0 album state vector at 0x11B2: 30 bytes, one per slot — album position, or 0xFF for deleted/unused (used for album ordering, deleted-photo recovery, and empty-slot detection). Protected by a "Magic" string + sum/xor checksum + echo copy, all maintained on write
• Per-slot metadata at +0xF00: user ID, name, gender/blood, birthdate, comment, hotspots, in-camera border index, "Magic" + checksum, echo at +0xF5C (the stock camera stores no exposure settings)
• "Last seen" working image: 3584 bytes at 0x0100, same tile format
• .srm files are raw SRAM dumps in RetroArch format — identical structure to .sav
• Tone adjustments render on the GPU (WebGL) when hardware acceleration is available, with an automatic bit-equivalent CPU fallback; exports always use the CPU path for reproducibility

Development

• renderer/js/app/ holds the app modules (classic scripts, shared global scope — load order in index.html matters); docs/ is the deployed web build, synced via npm run sync:web
• npm test — unit tests for the SRAM decoder/encoder (node)
• npm run test:e2e — Playwright end-to-end tests against the web build (npx playwright install chromium first)
• CI runs both suites plus a renderer/docs sync check on every push

---

Credits

SRAM format research: AntonioND/gbcam2png and the Game Boy Camera Club community.

GBC and SGB palettes: sourced from The Cutting Room Floor.

Community palettes: sourced from Lospec — individual palette credits to Kirokaze, Kerrie Lake, Poltergasm, WildLeoKnight, Klafooty, Space Sandwich, and BurakoIRL.

Border frames: sourced from RomanObaraz/gb-cam-lab.

---

Made by clickysteve · allmyfriendsarejpegs.com