Promptly is a personal, beautifully designed browser extension that lets you save, organize, and quickly copy/insert AI prompts from a clean popup UI. Compatible with both Chrome and Firefox, it works offline using local browser storage, keeping your prompt library accessible, searchable, and always ready.
- Modern Glassmorphic UI: High-fidelity frosted glass appearance with animated gradient backgrounds, powered by Lucide Icons for a crisp, professional look.
- Community Library: Browse and import curated prompts from
community-prompts.jsondirectly into your personal collection with one click. - Smart Sharing: Generate permanent, client-side sharing links via
ken.toolsthat allow others to import your prompts instantly. - Search & Filter Flow: Find prompts quickly by title or tag using the custom search bar and folder organization.
- One-Click Copy: Simply click a prompt to copy it. Supports {{variables}} for dynamic template filling before copying.
- Data Portability: Full Export and Import functionality allows you to backup you prompts as
.jsonor sync them across devices. - Privacy First: Fully local operation using
browser.storage.local. All sharing is client-side; no data is stored on external servers. - Platform-Specific Builds: Organized into
platform/chromiumandplatform/firefoxdirectories, ensuring uniform compatibility between Chrome (chrome.*) and Firefox (browser.*) viawebextension-polyfill.
- Install the Extension: Install Promptly by following the "Get Started" manual loading instructions below.
- Setup your Library: Click the
+button in the top right of the popup to start writing and saving your custom AI prompts and tags. - Copy to Clipboard: Whenever you need a prompt, open Promptly and click your desired item. It will immediately copy to your active clipboard!
- Up-to-date Styling: Built using Vanilla CSS featuring custom backdrops, responsive animations, and auto Dark Mode.
- Clean User Interface: Simple, non-intrusive design to help you stay organized without cluttering your browser bar.
- Free and Open Source: Available on GitHub, fully customizable and open to community contributions.
To start using Promptly, load it manually into your browser:
- Open Firefox and navigate to
about:debugging#/runtime/this-firefox - Click the Load Temporary Add-on... button
- Select the
manifest.jsonfile inside theplatform/firefox/folder
- Open Chrome and navigate to
chrome://extensions/ - Enable Developer mode in the top right corner
- Click the Load unpacked button
- Select the
platform/chromium/folder from this directory
For questions or support, feel free to open an issue on the GitHub repository. If you'd like to contribute, just submit a Pull Request!
- Kenneth Hendricks, creator and developer of the Promptly Browser Extension



