# Hashtag extractor

- Human page: https://happytails.ai/en/text-tools/extract-hashtags/
- Markdown: https://happytails.ai/en/text-tools/extract-hashtags.md
- Structured JSON: https://happytails.ai/agents/en/text-tools/extract-hashtags/index.json
- Visibility: public

## Tool capabilities

| Property | Value |
| --- | --- |
| Tool ID | `extract-hashtags` |
| Category | text-tools |
| Implementation | Registered implementation. Registration alone is not a production-quality guarantee. |
| Browser execution | Automatic updates after valid input or file selection. |
| Browser processing | Browser; see tool notes for network behavior. |
| HTTP API | Not callable through HTTP. |
| Browser-agent interface | run_current_tool |

### Implementation notes

Extracts unique hashtags containing Unicode letters, numbers or underscores, in first-seen order. Platform-specific tag rules can differ.

### Inputs and settings

Text input: Your text.

Example or placeholder shown in the interface (not a validated fixture):

```text
Type or paste your input…
```

Change the input or settings to update your result. Results update as you type. Up to 1,000,000 characters.

No additional settings are declared for this tool.

### Browser-agent workflow

1. Open the human page in a browser that supports WebMCP.
2. Discover the interface exposed by that page; use its actual schema.
3. Select files on the page first when the tool requires files.
4. Call `run_current_tool` with valid input and settings.
5. Inspect the returned result or error and the displayed output. Retrieve files from the displayed download links.

Calls do not automatically copy or download results. Browser permissions still apply. Interface availability alone is not proof of successful execution.

### Planning specification

Extracts unique hashtags containing Unicode letters, numbers or underscores, in first-seen order. Platform-specific tag rules can differ.

This describes intended requirements. Use the implementation notes, interface schema and observed output to determine current support.

### Complete machine-readable capability record

```json
{
  "id": "extract-hashtags",
  "category": "text-tools",
  "built": true,
  "requirements": "Extracts unique hashtags containing Unicode letters, numbers or underscores, in first-seen order. Platform-specific tag rules can differ.",
  "implementation": {
    "fields": [],
    "live": true,
    "note": "Extracts unique hashtags containing Unicode letters, numbers or underscores, in first-seen order. Platform-specific tag rules can differ.",
    "experience": {
      "automatic": true,
      "single": false,
      "inputMaxLength": 1000000,
      "inputMode": "text",
      "label": "Your text",
      "placeholder": "Type or paste your input…",
      "help": "Change the input or settings to update your result. Results update as you type. Up to 1,000,000 characters.",
      "action": null
    },
    "mode": "automatic",
    "interactive": false
  },
  "execution": "Browser interface",
  "api": null,
  "browser_agent": {
    "supported": true,
    "name": "run_current_tool",
    "discovery": "WebMCP on the human page in a supporting browser",
    "verification": "See audit/API-AUDIT.md; availability is not verification"
  }
}
```

## Page guide

Pull the unique hashtags out of a caption or list of posts.

How can we improve this tool?

Report a problem or share an idea.

Please leave out private information. Your message and the tool name go to our team via PostHog.

### How to use Hashtag extractor

1. Paste your text. Copy the resulting tags, one per line. Repeated tags are removed while their first-seen order and spelling are kept.
2. The sample returns #café and #design once each, in that order.

## Useful next steps

- [Mention extractor](https://happytails.ai/en/text-tools/extract-mentions/) ([Markdown](https://happytails.ai/en/text-tools/extract-mentions.md))

- [Remove duplicate lines](https://happytails.ai/en/text-tools/remove-duplicate-lines/) ([Markdown](https://happytails.ai/en/text-tools/remove-duplicate-lines.md))

- [Word counter](https://happytails.ai/en/text-tools/word-counter/) ([Markdown](https://happytails.ai/en/text-tools/word-counter.md))

## How to use it

Paste your text. Copy the resulting tags, one per line. Repeated tags are removed while their first-seen order and spelling are kept.

### Try a small example

The sample returns #café and #design once each, in that order.

### What to know

Extracts unique hashtags containing Unicode letters, numbers or underscores, in first-seen order. Platform-specific tag rules can differ.