Chrome Extension · Free

Edit AI replies
into perfect
prompts

One click sends any AI response to your side panel. Fill placeholders, reformat, rewrite — then send to any AI chat, share via link, or copy as clean Markdown. Unlimited history. No tab switching.

Add to Chrome — Free See how it works PromptEditor - Markdown Sidebar for AI Prompts | Product Hunt
Works on
Claude
ChatGPT
Gemini
Perplexity
Copilot
PromptEditor
Edit · Refine · Paste
Editor
History 3
Variables
B
I
U
Words: 28 Chars: 162 ● 4 placeholders
Summarise this paper for a [target audience]
Click to fill
 audience. Focus on [key_aspect]
Click to fill
 and explain the methodology simply.

Highlight the [N]
Click to fill
 main findings. Note any limitations.

Paper: [paste paper here]
Click to fill
Scroll
How it works

Three steps,
zero friction

PromptEditor stays out of your way until you need it. Then it's just a click away.

01

Click "Edit in PromptEditor"

A button appears below every AI response on Claude, ChatGPT, Gemini, Perplexity, and Copilot. Click it and the side panel opens instantly with the text loaded in.

02

Edit, fill placeholders, format

Placeholders like [topic] and {variable} light up automatically. Click any one to replace it. Bold, italicise, add bullets — format visually, not in raw Markdown.

03

Send, share, or copy — done

Hit "Send to…" and your prompt lands directly in Claude, ChatGPT, Gemini, Perplexity, or Copilot — ready to go. Or hit "Copy Prompt" for clean Markdown. Saved prompts can also be shared via a branded short link that anyone can open directly in PromptEditor.

Features

Everything you need
to craft better prompts

A full editing toolkit, unlimited history, sharing, and Pro features for power users — all in a lightweight Chrome side panel.

Send To Any AI

Click "Send to…" and choose where to send your prompt. PromptEditor opens the tab and pastes your text in — ready to send with one keystroke.

Global Variables

Define persistent key→value pairs once — your name, project, environment — and PromptEditor silently auto-fills every matching placeholder whenever a prompt loads.

100% Private

Zero servers, zero accounts. Everything runs in your browser. Your prompts never leave your machine — no telemetry, no tracking, ever.

Placeholder Detection

Automatically highlights [brackets] and {curly} placeholders. Click any one to type the real value inline.

Rich Text Editor

Bold, italic, underline, bullet lists, numbered lists. Edit visually and copy out as perfectly formatted Markdown every time.

Unlimited Prompt History

Every prompt you save is stored locally in your browser — forever. Unlimited entries via IndexedDB. Restore any past prompt in one click. Pro users get full-text search, manual tags, and export/import.

Side Panel — No New Tabs

Opens alongside your AI chat using Chrome's native Side Panel API. Your conversation stays fully visible.

Markdown Export

Converts your formatted text to clean, standard Markdown when you copy — ready for any AI or note tool.

Load from File

Open any .txt or .md file directly into the editor with one click.

Find & Replace

Swap a word or phrase throughout your prompt instantly. Replace one occurrence or all at once — Cmd+H or the toolbar button.

Find & Replace
[your company]
→Anthropic
3 replacements made ✓
Supported sites

Works where
you already work

Claude
Claude
ChatGPT
ChatGPT
Gemini
Gemini
Perplexity
Perplexity
Copilot
Copilot
＋
More coming
Simple Pricing

Free to start.
Pro when you're ready.

Everything you need to manage prompts professionally — search, tags, export and more.

Free
£0
forever
Add to Chrome
All editor features✓
Placeholders & variables✓
Send to any AI chat✓
Unlimited local history✓
Auto-tags (destination AI)✓
Share prompts (link & Markdown)✓
Full-text search—
Manual tags—
Export library (.md)—
Import library (.md)—
Floater on any page—
Workspace (folder browser)—
Pro ⭐ Most popular
£49/yr
billed yearly · save 42%
Get Pro
All editor features✓
Placeholders & variables✓
Send to any AI chat✓
Unlimited local history✓
Auto-tags (destination AI)✓
Share prompts (link & Markdown)✓
Full-text search✓
Manual tags✓
Export library (.md)✓
Import library (.md)✓
Floater on any pageSOON
Workspace (folder browser)SOON

Your prompts stay on your machine.

PromptEditor has no backend, no user accounts, and no analytics. Prompt history is stored locally in your browser via IndexedDB — only you can access it, and it never leaves your device. The optional Share feature generates a short link via our own server, but your prompt content is only sent if you choose to share it.

No accounts required No data collected No analytics or tracking Open permissions explained

Start editing prompts
like a pro

Free forever. No account needed. Install in 10 seconds and start using it on your next AI chat.

Add to Chrome — It's Free