Coming Soon
A local-first GM tool that keeps your campaign moving.
Plan, prep, and run sessions with everything you need in one place, on your computer.
No subscriptions. No server outages. No “where did I put that note?” panic.
- Local-First – your campaigns live in your files
- Built to run sessions – fast access, instant notes and table friendly tools
- Any system – customize what you track for whatever system you play
No subscription – Offline-friendly – Your data stays yours.
Prep & Worldbuild
- Campaigns, adventures, sessions, scenes
- NPCs, locations, factions, items, encounters
- Search, tags, and links to keep everything connected
Play & Improvise
- Start a session and keep your table’s changes separate from your campaign baseline
- Clone and tweak enemies on the fly
- Track counters, tokens, and whatever your system needs
Recap & Followup
- One-click notes that compile into a session log timeline
- Track open questions, plot hooks, and consequences without digging through scraps
- Generate Item loot cards for handing out to your loot goblins.
Local-first ownership
Your campaign is stored locally. No accounts required to keep playing.
Session / playtest isolation
Run the same campaign multiple times without overwriting your worldbuilding.
Fast improv tools
Create NPCs, items, encounters, and notes mid-session without breaking flow.
Session logging built-in
Capture what happened, then review it as a clean timeline.
System-agnostic tools
Adapt the layout and tracked stats to just about any system 5e, Daggerheart, Pathfinder, CoC, or homebrew
Share & export your world
Export a campaign to share with another GM, or export your content to a document for publishing drafts.
Not a VTT. Not a spreadsheet. Not a second job.
GM Grimoire keeps you organized and fast at the table without turning your game night into a software ceremony. Easily display maps, NPC portraits, and mood visuals on a second screen if you want
Your table, your style.