The Whelp's Companion Add to Chrome
A side panel companion for every player at the table

Small dragon.
Big memory.

Someone at your table just asked how grappling works. Again. The Whelp's Companion keeps the answer one keystroke away: a searchable, fully editable rules screen that lives in your browser's side panel, right next to your maps, your music, and your video call.

🐉 Add to Chrome, Free See what it does

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

Available now Chrome Edge Brave
On the way Firefox Android
Runs on Windows macOS Linux
Every table knows the moment

The game stops. The wiki-diving begins.

You are mid-encounter. Your rogue wants to shove the ogre off the bridge, the cleric is prone, and somebody is on fire. Then it comes: "wait, how does that actually work?" Twelve browser tabs later, the answer is buried under three ads and a forum argument from 2014, and your table's momentum is gone.

The Whelp's Companion was built for exactly that moment, by a GM, for the players sitting on the other side of the screen. It is for every player at the table, written with brand new players especially in mind: the rules are curated into bite-sized cards instead of walls of text, so nobody has to know where to look before they can look something up.

d4

Open it anywhere

Lives in your browser's side panel, or pops out into its own window for a second monitor. It never steals focus from your game.

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Find it instantly

Hit /, type three letters, and every matching card lights up with highlighted results, across every tab at once.

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Keep playing

Read the card, take your turn, roll the dice. The whelp goes back to sleep until the next "wait, how does..."

What's in the hoard

A rules screen that plays by your rules.

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Search everything

Full-text search across every tab, card, tag, and table, with live highlighting as you type. Press / to search, Esc to clear.

fastkeyboard
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Edit anything

Add tabs, sections, and cards. Rich text, tables, links, images. Your table's house rules sit right next to the official ones, where they belong.

editorhouse rules
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Pin what matters

Star any card and it joins your ★ Pinned tab. Tags are clickable too: one tap gathers every card on a topic from across the whole screen.

★ pinnedtags
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Theme it to death

Sixteen color swatches, with independent light and dark palettes, plus three font slots. You can even upload your own .woff2 fonts.

themingfonts
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Swap systems in a click

The badge in the corner is a dropdown. Pick a system and the whole screen, content and colors and fonts, becomes that game's companion.

templates6 systems
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Yours. Actually yours.

Everything is stored locally and exports to a single JSON file. Back it up, share it, theme-swap it. No cloud, no login, no nonsense.

offlineexport
Starter templates included

Six systems. One whelp.

Every template is New Player scoped: the core turn loop, common actions, checks and saves, and a personal notebook. It is what a first-timer actually needs at the table, and what a veteran wants within reach.

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 Whelp's Companion main screen showing the D&D 5E template with About and License cards
The companion screen: searchable cards, clickable tags, pinnable everything.
The editor window showing the content tree and the theme color and font controls
The editor: your content tree on the left, sixteen color swatches and font pickers on the right.
Sitting behind the screen instead?

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

Same framework, same speed, same obsessive theming. A separate app built for the GM side of the table, with the references you reach for while you are running the game rather than playing in it.

Meet the GM Quick Screen
The GusNBru brand mark, a black and white German Shepherd
Designed by GusNBru

Built by a GM, for the players at his table.

Hi, I'm JD, your friendly DM/GM. I have been playing TTRPGs for a very long time (51 years) and running them for most of it. I built the Whelp's Companion because I wanted something I could hand my players: fast, theirs, and always right where the game already is.

It is hand-built with vanilla JS, HTML, and CSS. No frameworks, no bloat, no server watching over your shoulder. If it has made your table better, the tip jar is always open, and the Feedback button (or gusnbru.us) reaches me directly.

Session zero starts now

Adopt your whelp.

Free, offline-friendly, and ready before your next session. Works in Chrome, Edge, and Brave on Windows, macOS, and Linux. Firefox and Android are on the way.

🐉 Add to Chrome, Free ☕ Tip Jar