Every book you own in one binder. Open one to run it, then press Space to summon a table from any of the others, right over the top.
Your first night, in three moves
Press Space and type wolf. The Summon searches every book at once
Open The Salt Road: a whole adventure, already in your Grimoire
Press C and muster a fight. Initiative rolls itself
Adventure Keepers
Packs, Bestiaries & Kits
Tomes · Your PDFs
◆
every format it takes, and a table straight off your clipboard
Your binder back it up, or carry it
back up your whole binder, or move it to another device
Your Grimoire only fills up with your books. Gnash is listening for the next one. Get more books → · every Adventure Keeper, bestiary & pack drops straight into the binder.
A free adventure every other week, made for your Grimoire: The Bi-Weekly One-Shot. Drop the file into your Grimoire and it is in the Summon by the time you sit down.
Scenes
Maps
Tokens
War Board
Arrows nudge origin 1px. Shift+arrows change pitch 0.25px. [ and ] turn it 0.5° (Shift: 5°).
ambientftftGive a token eyes in the token bar. Only tokens with an owner count as the party.
px =
ft
Fog is honest but not armored: the whole map image travels to your players and the unexplored part is hidden on their screens. A determined player with browser devtools can peek behind it. Keep real secrets out of the map image itself.
About Gnasher's Grimoire
A free companion for the Dungeon Master. One file, runs offline, no account, no server. Your books stay yours.
Look
Six packs. A pack repaints the app and the pages of your books. It never moves a control and it never changes the writing faces, only the colours and the figures.
Figures
The face on hit points, armour class, ability scores, DCs, initiative and roll results. Every pack brings one; choose one here and it stays with you whatever pack you pick.
Everything. Your books, notes, tables, saves and PDFs live in this browser, and nothing leaves it on its own. The one exception is the live table: same-room pairing works with no internet at all; the standard pairing code goes through a small LIDM relay so your players can find your table, and when two networks cannot reach each other directly the encrypted link may pass through public STUN or TURN servers. What you push (maps, handouts, rolls) rides that link and nothing else does. Back the binder up with Export .keeper, or keep it on a USB drive with Binder on a drive.
Your PDFs are stored in this browser only and are not included in .keeper backups or the Drive Binder, so keep the PDF files themselves too.
At the table
Want the map on a TV? Open the Satchel in the TV's browser, make a character called Screen, join your table with it, and the players' view of the board fills the screen, fog and all. Your laptop stays the DM's screen.
Press N for the notebook. Type what just happened; find it later by pressing Space and typing any word of it. Notes ride the Chronicle and your .keeper backup.
Something broken?
Report a problem. The app writes up the technical details, you read every word of it, and you send it yourself. The app never sends anything on its own.
Which is which, plainly: the equipment prices the shop generator quotes and the species list it falls back on are SRD 5.1. The magic-item names it rolls, and every book in the SRD Codex, are SRD 5.2.1. Everything else on those cards (the names, the taverns, the rumours, the stones and the treasures) was written for this app.
Gnasher's Grimoire is not affiliated with or endorsed by Wizards of the Coast.
The figures faces are used under the SIL Open Font License 1.1: Trirong, Cardo, Grenze, Faustina, Cormorant Garamond, Spectral and Alegreya. Copyright belongs to their respective authors, and the notices and the full licence text are printed below. Open The font licences to read them. None of the seven declares a Reserved Font Name.
The font licences
Trirong Light · Copyright (c) 2015, Cadson Demak (info@cadsondemak.com)
Cardo · Copyright (c) 2002-2011, David J. Perry (hospes02@scholarsfonts.net)
Grenze Light · Copyright 2019, The Grenze Project Authors (https://github.com/Omnibus-Type/Grenze)
Faustina Light · Copyright 2016 The Faustina Project Authors (https://github.com/Omnibus-Type/Faustina)
Spectral Light · Copyright 2017 The Spectral Project Authors (https://github.com/productiontype/Spectral)
Alegreya · Copyright 2011 The Alegreya Project Authors (https://github.com/huertatipografica/Alegreya)
All seven are licensed under the same text, printed once:
-----------------------------------------------------------
SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
-----------------------------------------------------------
PREAMBLE
The goals of the Open Font License (OFL) are to stimulate worldwide
development of collaborative font projects, to support the font creation
efforts of academic and linguistic communities, and to provide a free and
open framework in which fonts may be shared and improved in partnership
with others.
The OFL allows the licensed fonts to be used, studied, modified and
redistributed freely as long as they are not sold by themselves. The
fonts, including any derivative works, can be bundled, embedded,
redistributed and/or sold with any software provided that any reserved
names are not used by derivative works. The fonts and derivatives,
however, cannot be released under any other type of license. The
requirement for fonts to remain under this license does not apply
to any document created using the fonts or their derivatives.
DEFINITIONS
"Font Software" refers to the set of files released by the Copyright
Holder(s) under this license and clearly marked as such. This may
include source files, build scripts and documentation.
"Reserved Font Name" refers to any names specified as such after the
copyright statement(s).
"Original Version" refers to the collection of Font Software components as
distributed by the Copyright Holder(s).
"Modified Version" refers to any derivative made by adding to, deleting,
or substituting -- in part or in whole -- any of the components of the
Original Version, by changing formats or by porting the Font Software to a
new environment.
"Author" refers to any designer, engineer, programmer, technical
writer or other person who contributed to the Font Software.
PERMISSION & CONDITIONS
Permission is hereby granted, free of charge, to any person obtaining
a copy of the Font Software, to use, study, copy, merge, embed, modify,
redistribute, and sell modified and unmodified copies of the Font
Software, subject to the following conditions:
1) Neither the Font Software nor any of its individual components,
in Original or Modified Versions, may be sold by itself.
2) Original or Modified Versions of the Font Software may be bundled,
redistributed and/or sold with any software, provided that each copy
contains the above copyright notice and this license. These can be
included either as stand-alone text files, human-readable headers or
in the appropriate machine-readable metadata fields within text or
binary files as long as those fields can be easily viewed by the user.
3) No Modified Version of the Font Software may use the Reserved Font
Name(s) unless explicit written permission is granted by the corresponding
Copyright Holder. This restriction only applies to the primary font name as
presented to the users.
4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
Software shall not be used to promote, endorse or advertise any
Modified Version, except to acknowledge the contribution(s) of the
Copyright Holder(s) and the Author(s) or with their explicit written
permission.
5) The Font Software, modified or unmodified, in part or in whole,
must be distributed entirely under this license, and must not be
distributed under any other license. The requirement for fonts to
remain under this license does not apply to any document created
using the Font Software.
TERMINATION
This license becomes null and void if any of the above conditions are
not met.
DISCLAIMER
THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
OTHER DEALINGS IN THE FONT SOFTWARE.
🐛 Report a problem
Something broken, confusing, or just wrong? Tell me what happened and the
Grimoire will write up the technical details for you.
What gets sent: read it, it is the whole report
The Grimoire never sends this anywhere. There is no telemetry and no
reporting service; you copy or send it yourself. Everything the app added is counts and
status: no book text, no character names, no table code, no whispers, no notes.
Your description is included exactly as you type it, so leave out anything you would
not want to share. (“Email it” hands the report to your own mail app, which may be
webmail. If a table is open, the Grimoire keeps talking to the code service for pairing, as
it always does. That is unrelated to this report.)
Drag it straight out of another browser tab and you never have to download it first.
A file off your computer works, and so does Ctrl+V after you right-click a picture and copy it.
Drag inside the circle to move the picture; the wheel zooms.
The punch
The border
The runes are Elder Futhark, Younger Futhark and Ogham: real historical letterforms, drawn as strokes, out of copyright everywhere.
Colour
The middle, when there is no picture
The name
Out
Nothing here leaves your computer. Tokens you make are kept in your binder, so they are still in the tray tomorrow.
⚲Esc
↑↓ move↵ float⇧↵ float & roll★ favorite
Contents
·
✦
Tap anything to float it over your page. Nothing here navigates you away.
⚄ Dice
·the whole night's rolls log below
Session roll log
No rolls yet.
⚔ CombatRound 1
◎ The Theater0 paired
Your tables
Players
Each player opens Gnasher's Satchel, taps the pairing ring, and pastes your invite; their reply comes back here. Once linked, the War Table lights their screens by itself.
Handouts
The quiet word
Pick a player in the To row above; whispers go to that chair alone.
Packets
A dossier you hand a player: the face they get, and the notes they never do. Build one from anything in your Grimoire and it splits itself.
Table rolls
Player rolls land here and in the session dice log.
How the Theater works
1. Link the table. Tap Open the table by code and read the code aloud (something like EMBER-42). Each player types it into their Satchel (the wax seal, top left) and taps Join. No internet at the venue? Tap Same room first, or share your phone's hotspot; the + Invite by paste button trades the link as copied text instead. 2. Run the fight. Nothing extra to do: your combat tracker drives every paired Satchel. Each player sees the order, and a YOUR TURN banner when it's them. 3. Handouts. Title, text or image, Push text or Push image. Pick a name in the To row to whisper it to one player alone; everyone else never sees it. 4. Resting seats. A player's phone dozing off shows their seat as resting. Keep playing; whatever you push is held and delivered the moment their screen wakes. Their Satchel rejoins by itself. 5. The code sticks. A saved table keeps the same code, so your players type it once and it still works next week. Reload this page mid-session and the table reopens on its own, seats and all, with nobody typing anything. Only Change the code makes them retype.
Players start at longislanddungeonmaster.com/satchel.
✒ The Chronicleno campaigns
⚖ The Cartempty
✉ The Table Threadno posts
✎ Notes0 notessaved
☊ Scenes0
♪ Sound MatNo sounds folder linked
Sound pads tap an empty pad to set it
Nothing playing
0:000:00
⚔ Muster the Encounter
Esc
On the table
Run it from the keyboard
The whole point is speed. Learn these and you never touch a menu mid-scene.
Space
Summon: find any table, any book
T
Contents: everything this book carries
R
Roll the focused card again
B
Bookmark this spot: jump back from the bar
D
Dice tray
P
Party passives strip
S
Split: two books side by side
C
Combat: muster the fight, run initiative
W
War Board: maps, grid and fog
N
Notes: what just happened; Space finds it later
E
Scenes: book, map and music, captured once and set with one tap
H
Hide or show the sidebar: the page takes the width back, nothing closes
Esc
Close whatever's open
The Scribe
paste any 5e-style statblock: it becomes a monster you ownESC / close
Your binder was upgraded
one thing worth checkingESC / close
The Forge
make your own Keeper: write it in plain Markdown, get one file anyone can drop on their GrimoireESC / close
no cover yet
What can I drop in here?
everything stays on your computerESC / close
Paste a table
copy cells out of Google Sheets or Excel and paste them hereESC / close