GM Squire
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Your own Squire for every Adventure.

Squire is the only tool built specifically for planning and running Dungeons & Dragons — everything connected, organised, and within reach. We are tailored for GMs who love the experience of running their session around the table, in-person.

No setup, no plug-ins, no complexity — just start. The tool should never be more work than the campaign, so we track the details while you focus on running great adventures for your players.

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See it in action

Squire, from prep to the table

Session

Plan at the Speed of Thought

Write naturally while Squire keeps everything you need within reach. Reference NPCs, monsters, locations, items, lore, and more without breaking your flow.

  • “@” reference anything instantly — spells, monsters, items, NPCs, PCs, locations, and more
  • Turn any text into campaign content — just highlight and select

Session

Be Immersed in the Game at the Table

Preview

A limited preview — give it a go

This is the real editor. Type “@” to mention a character, location, quest, or monster from this sample scene — or search the SRD for any creature, spell, or item. Click a chip to open its full card. No account needed.

The Beginning of the Road

We begin our adventure in Thistledown Vale, in the small town of Barleymoot, in a beautiful burrow-home named Hearthburrow.

Our intrepid adventurers Maelor the Ashen, Rowan Wynroot and Tobin Ockshaw are being served tea and honeycakes by Alder Wynroot.

A Bickering Twosome

The noise of bickering and tense voices grows louder as it drifts through the open window.

Cobb Harrowfield and Tansy Applewhite burst through the door of Hearthburrow, clutching a missive from an Elven messenger. They read the message aloud:

  • A great evil is coming to Thistledown Vale in search of The Sable Ring (Ring of Invisibility). They must venture forth to Unmake The Sable Ring without delay! The Wraiths — Wraith — have been despatched to hunt down the bearer of the Ring.

On inspection of the letter there is nothing of note but The Wax Seal.

Danger Approaches

At that moment, the sound of heavy hooves beats down upon the track outside…

The Wraith Approaches

What would you like to do…?

Command + K

The Power of Command + K

Command + K gives you instant access to everything in Squire. Find monsters, rules, NPCs, locations, quests, spells, lore, and more without stopping to hunt through folders, tabs, or text.

  • Search everything from one place
  • Create what you need in seconds
  • Pin anything you need, any time

Search the SRD

Search D&D 5.2 SRD monsters, items, and spells

Try it yourself — search for a monster, spell, or item, then pin it for quick reference. No account needed.

Encounters

Focus on the Action

Build balanced encounters, launch them directly from your session, and let Squire handle the details while you focus on the players at the table.

At the table

  • Build balanced encounters in minutes
  • Add creatures, allies, hazards, and objectives
  • Let Squire track the details — initiative, conditions, rounds, and more

Help us build it.

GM Squire is in private alpha, and we're building it with the people who'll actually use it at the table. Whether you're prepping your first one-shot or you've been running the same homebrew for a decade, your feedback shapes what we build next.

Drop your email and a line about your table. We'll be in touch when there's a seat for you — and we'll actually listen to what you tell us.

First Campaign? Long-running homebrew? What makes you interested in testing Squire?

© 2026 GM Squire
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Everything you need is available directly from your session notes. No searching through folders, switching tabs, or digging through pages of text — just the information you need, when you need it.

  • Quick View anything directly from your notes
  • Launch combat the moment it begins
  • Focus on the action, not the admin