PumaPrompter

PumaPrompter is a reusable library of AI image-prompt fragments. Organise prompt snippets in a tree, then assemble a finished prompt by picking one node. No server, no account, no telemetry.

Fragment tree — nest snippets however you like (Character › Casey › Outfits › Work uniform). Each node carries an optional prompt snippet; a dot marks the ones that do.
Ancestor-chain assembly — select any node and the build pane concatenates every non-empty snippet from the root down to that node, in order, ready to copy.
Enable with checkboxes — tick the checkbox on each node you want in the prompt (or ⌘/Ctrl-click a row). Each enabled node contributes its ancestor-chain text, and a BREAK, line separates each top-level section from the next — a contextual barrier so subjects (characters, props, background) don't bleed together. Selections within one section group together; order follows the tree. Clicking a row's name just focuses it for editing — it doesn't change what's enabled. Even with several nodes enabled you can focus any one of them and edit its positive/negative snippet (the label shows which node); the assembled prompt updates as you type.
Rename a node with the ✎ button on its row, by double-clicking it, or by pressing F2 on the focused node.
Negative prompts — every node also carries a negative field. The negative window gathers the negative tags from your whole selection (and their ancestors), removes duplicates, and joins them with newlines (no BREAK) — one clean tag set to paste into the negative box.
Editable build pane — tweak the assembled text before copying; the edited flag shows when you have diverged, and ↺ Regenerate rebuilds it from the tree.
Separators — join fragments with a blank line, a single newline, or a comma, to suit whichever image tool you paste into.
Tree editing — add, rename (double-click), duplicate (great for variants), and delete from each row's hover actions. Drag any node to reorder it among its siblings, drop it onto another node to re-nest it, or onto empty space to move it to the top level.
Libraries (workspaces) — keep separate prompt sets per project in the tabs at the top; switch, rename, reorder, and close them.
Backup & restore — Export writes a .pumapack of every library (⌘/Ctrl+S saves a quick copy); Import or drag-drop restores it.

How assembly works

A prompt is built by walking the path from the root down to the node you select and joining each node's snippet in order. Nodes with an empty snippet are skipped, so organising categories (like Character or Outfits) can exist purely to group things without adding text.

Put shared text high, specifics low. A character's base description lives on the character node; a particular outfit lives on the outfit node. Selecting the outfit yields character + outfit together.
Use duplication for variants. Duplicate a node to fork "variant 1 / variant 2" without retyping the shared parent text.
Selecting a parent assembles just the path to that parent — a quick way to grab a base description on its own.

Everything below the selected node is ignored; only the ancestors and the node itself contribute.

Multiple subjects & BREAK

Tick a node's checkbox to include it (or ⌘/Ctrl-click the row). Each enabled node contributes its ancestor-chain text, and a line reading BREAK, separates each top-level section from the next. In many image models BREAK starts a fresh chunk, so distinct subjects (a character, a prop, a background) don't bleed into each other. Enabled nodes within the same top-level section group together — the barrier goes between sections. Order follows the tree, and the focused (accent-barred) node is the one whose snippets the editors edit.

Where your libraries live

Every library is stored in your browser's localStorage, on this device and this browser only. Nothing is uploaded anywhere.

This is the whole database. If you clear site data, use a private window, switch browsers, or lose the device, your libraries are gone. Back up regularly.

Backing up

The Export button saves every library to a single .pumapack file; ⌘/Ctrl+S saves a quick copy. Restore either with Import, or by dragging the file onto the window.

Clear all local data

Danger zone. This erases every PumaPrompter library in this browser. Export a backup first.

?

Open this help

⌘/Ctrl + S

Save a quick .pumapack backup

F2 / double-click

Rename the focused / clicked node

Enter

Commit a rename

Esc

Cancel a rename · close a dialog

About PumaPrompter

PumaPrompter is a lightweight, portable, offline tool for collecting and assembling AI image-prompt fragments. It runs entirely in your browser, with your prompt library kept on your own device.

About PumaWorx

PumaWorx is a suite of offline, single-HTML productivity apps that run entirely in your local browser. The entire suite is a personal, open source vibecoding project.

Dev build

Built by greykit.com