The screen behind the screen.

Five players are staring at you. Somebody just jumped off a moving cart. You need a DC, right now. Gamemaster Quick Screen keeps every table, condition, and ruling one keystroke away, so the world you built never pauses for a rules check.

🐲 Add to Chrome, Free See what it holds

No account. No tracking. No subscription. Everything lives on your machine.

Conditions

Blindedauto-fail sight

Frightenedno approach

Grappledspeed 0

Pronemelee adv.

Restraineddex saves dis.

Stunnedauto-fail str/dex

Gamemaster Quick Screen D&D 5E / 2024

★ Pinned Adjudication Hazards Travel

★

Falling

A creature takes 1d6 bludgeoning per 10 feet fallen, to a maximum of 20d6, and lands prone unless it avoids the damage.

hazard damage ruling

Setting a DC

Very easy5

Easy10

Medium15

Hard20

Very hard25

Nearly impossible30

Every gamemaster knows the silence

The table goes quiet. Everyone waits for you.

Your players just did the thing you did not prep. The bard is negotiating with the dragon you built as a set piece, the fighter is climbing something that has no listed DC, and every eye at the table is on you. You have about four seconds before the tension in the room turns into someone checking their phone.

Gamemaster Quick Screen exists for those four seconds. It is a reference screen that lives in your browser's side panel, next to your maps and your notes and your initiative tracker, holding the rulings you reach for most in cards you can read at a glance instead of paragraphs you have to mine.

Then you make the call, and the scene keeps moving. That is the whole job.

Session log, one encounter

7:41 PMRogue leaps from the cart onto the wagon.

7:41 PMYou need a jump distance and a DC.

7:42 PMOld way: three tabs, one PDF, a forum post from 2014.

7:41 PMNew way: press /, type "jump", read the card.

7:42 PMYou set the DC. The rogue rolls. The chase continues.

What is behind the panels

Everything a screen should hold, and nothing it should not.

Table 1: Features and their effect at the table
Feature	What it does when the table goes quiet
Instant searchpress /	Full-text search across every tab, card, tag, and table, with matches highlighted as you type. Three letters is usually enough.
Pinned rulingsthe ★ tab	Star the cards this campaign keeps needing. They collect in a permanent Pinned tab, so your table's greatest hits are always the first thing you see.
Clickable tagscross-tab	Tap any tag and every card sharing it gathers from across the whole screen. One tap for all your hazards, all your chase rules, all your conditions.
Full editinghouse rules	Add tabs, sections, and cards with rich text, tables, links, and images. Your rulings and your homebrew sit right beside the official text, in your words.
Deep theming16 swatches	Independent light and dark palettes, sixteen color swatches, and three font slots. Upload your own .woff2 files if a campaign deserves its own typeface.
Detach and docksecond monitor	Run it in the side panel or pop it into its own window for a second screen. It never steals focus from your map, your music, or your video call.
Local and portableone JSON file	Everything is stored on your machine and exports to a single file. Back it up, hand it to a co-GM, or carry your screen to somebody else's table.

Starter templates included

Your systems. One screen.

Pick a system from the badge in the corner and the whole screen becomes that game's reference: content, colors, and fonts together. Run one system or run six, and swap between them without losing a thing.

D&D 5E (2024) Pathfinder 2E Starfinder 2E Tales of the Valiant Cosmere RPG Daggerheart

Game content is used under each system's open license (CC-BY, ORC, DPCGL, and friends). Full attribution lives on every template's About & License tab.

See it in the wild

The screen, and the workshop behind it.

The Gamemaster Quick Screen side panel in use — The screen itself: searchable cards, clickable tags, pinnable rulings.

The Gamemaster Quick Screen editor window — The editor: your content tree on the left, colors and fonts on the right.

Sitting on the other side of the table?

Gamemaster Quick Screen is for you. The Whelp's Companion is for your players.

Same framework, same speed, same obsessive theming, built for the people rolling the dice instead of the one calling for them. Point your table at it and spend a little less of your session explaining what a saving throw is.

Meet The Whelp's Companion

Built by a GM who got tired of breaking the spell.

Hi, I'm JD, your friendly DM/GM. I have been running tables for most of the 51 years I have been playing, and the thing that always cost me the most was not the prep. It was the twenty seconds of dead air while I went looking for a number I already half remembered.

So I built the screen I actually wanted: fast, mine, and sitting right next to everything else I already had open. It is hand-built with vanilla JS, HTML, and CSS. No frameworks, no bloat, no server watching over your shoulder. If it has saved your table some silence, the tip jar is always open, and the Feedback button (or gusnbru.us) reaches me directly.