# Grayscale image

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

## Tool capabilities

| Property | Value |
| --- | --- |
| Tool ID | `grayscale-image` |
| Category | image-tools |
| Implementation | Registered implementation. Registration alone is not a production-quality guarantee. |
| Browser execution | Use the visible action or interactive controls. |
| Browser processing | Browser; see tool notes for network behavior. |
| HTTP API | Not callable through HTTP. |
| Browser-agent interface | run_current_tool |

### Implementation notes

Runs in your browser. Animated inputs produce a single still image. Supported decoding depends on your browser.

### Inputs and settings

No free-text input is required. Use the file inputs and/or settings below.

Accepted browser files: `image/*,.svg,.avif`. Choose one file.

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

Grayscale conversion with export preview; preserve dimensions.

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

### Complete machine-readable capability record

```json
{
  "id": "grayscale-image",
  "category": "image-tools",
  "built": true,
  "requirements": "Grayscale conversion with export preview; preserve dimensions.",
  "implementation": {
    "fields": [],
    "files": true,
    "accept": "image/*,.svg,.avif",
    "input": false,
    "note": "Runs in your browser. Animated inputs produce a single still image. Supported decoding depends on your browser.",
    "experience": {
      "automatic": false,
      "single": false,
      "label": "Your text",
      "placeholder": "Type or paste your input…",
      "help": "Up to 1,000,000 characters. Review the settings before running.",
      "action": null
    },
    "mode": "explicit",
    "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

Turn a color image into grayscale.

## Useful next steps

- [AVIF to JPG](https://happytails.ai/en/image-tools/avif-to-jpg/): Convert a AVIF image to JPG in your browser. ([Markdown](https://happytails.ai/en/image-tools/avif-to-jpg.md))

- [AVIF to PNG](https://happytails.ai/en/image-tools/avif-to-png/): Convert a AVIF image to PNG in your browser. ([Markdown](https://happytails.ai/en/image-tools/avif-to-png.md))

- [WEBP to PNG](https://happytails.ai/en/image-tools/webp-to-png/): Convert a WEBP image to PNG in your browser. ([Markdown](https://happytails.ai/en/image-tools/webp-to-png.md))

## How to use Grayscale image

1. Choose a file in an image format your browser can open.
2. Review the settings, then choose Run Grayscale image.
3. Review the result, then use Copy result or a download link when available.

## What to expect

Turn a color image into grayscale. The result keeps the image dimensions and uses shades of gray. Download the converted PNG when it looks right.