> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sprintbrain.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Sites and Apps Where SprintBrain Expands Text

> SprintBrain expands snippets in any text field on any website — Gmail, Slack, ChatGPT, Zendesk, Notion, and more — no site-specific setup needed.

SprintBrain injects into every text field on every website. Whether you're replying in Gmail, chatting in Slack, prompting an AI model, or updating a CRM record, the same trigger-and-expand flow works without any site-specific setup.

## Where it works

| Category          | Apps                                                    |
| ----------------- | ------------------------------------------------------- |
| **Email**         | Gmail, Outlook Web                                      |
| **Messaging**     | Slack, WhatsApp Web                                     |
| **AI chat**       | ChatGPT, Claude, Gemini, and any web-based AI interface |
| **CRM & support** | Zendesk, Intercom, HubSpot, Salesforce                  |
| **Hospitality**   | Airbnb, Booking.com                                     |
| **Productivity**  | Notion and any rich-text editor                         |

### Universal compatibility

SprintBrain works in every standard `<input>` field, `<textarea>`, and `contenteditable` element — which together cover the vast majority of text fields on the web. This includes:

* **Lexical-based editors** (used by WhatsApp Web and others)
* **ProseMirror-based editors** (used by Notion and many others)
* Any other `contenteditable` rich-text surface

## Field type compatibility

SprintBrain monitors the keystroke buffer in active text fields for your configured trigger. It works with:

| Field type          | Examples                             |
| ------------------- | ------------------------------------ |
| Standard `<input>`  | Search bars, CRM fields, form inputs |
| `<textarea>`        | Plain-text compose areas             |
| `contenteditable`   | Rich-text editors of all kinds       |
| Lexical runtime     | WhatsApp Web message composer        |
| ProseMirror runtime | Notion editor, many developer tools  |

<Note>
  Some heavily customized rich-text editors intercept the Tab key before SprintBrain can act. Use the **right-click context menu** or the **extension popup** as drop-in alternatives — both work on any page regardless of how the editor handles keyboard events.
</Note>

## Mobile

The SprintBrain library is fully accessible from any mobile browser at **[app.sprintbrain.com](https://app.sprintbrain.com)**. On mobile you can:

* Search your full snippet and prompt library
* Fill dynamic form fields inline
* Copy the finished, expanded text to your clipboard and paste it anywhere

There is no background injection on mobile — the Chrome extension only runs in desktop Chrome. The copy-from-browser flow gives you access to your entire library on any device without installing anything.

## Context menu

Right-click any text field on any page to open a **SprintBrain submenu** that mirrors your folder structure. Language variants appear as a nested submenu so you can pick the right wording in one gesture.

The context menu is especially useful when:

* The Tab key is intercepted by the page before SprintBrain can act
* You prefer browsing by folder rather than typing a trigger
* You want to insert a snippet without touching the keyboard


## Related topics

- [SprintBrain Quickstart: Install, Sign In, and Expand](/quickstart.md)
- [Install the SprintBrain Extension and Set Up Your Account](/install-extension.md)
- [SprintBrain: Free AI Prompt Library and Text Expander](/introduction.md)
- [AI Prompt Library: Store and Expand Prompts Anywhere](/prompts/overview.md)
- [Filter Prompts by Strategy, Intent, and Output Type](/prompts/filters-and-shortcuts.md)