Replace image color

Open Replace image color on Happytails.ai. This view has the same page content and links, with explicit tool capabilities. Read the processing notes before using a tool.

Tool capabilities

{
  "id": "image-color-replacement",
  "category": "image-tools",
  "built": true,
  "requirements": "Runs locally without uploads. One still PNG, JPEG or WebP up to 20 MiB and 16 million decoded pixels, with at most 16,384 pixels per side. Replaces pixels within a hard RGB distance of the selected source color. Zero tolerance matches the exact color; 100 matches all colors. Decoded alpha bytes stay unchanged. The browser may discard hidden RGB values in transparent pixels and convert the source color profile. Download the complete PNG, black-and-white selection mask and settings report. Original metadata is not retained. Outputs are limited to 100 MiB in total; processing stops after 30 seconds.",
  "implementation": {
    "fields": [
      {
        "key": "source",
        "label": "Source color",
        "value": "#000000",
        "type": "color"
      },
      {
        "key": "replacement",
        "label": "Replacement color",
        "value": "#00ff00",
        "type": "color"
      },
      {
        "key": "tolerance",
        "label": "Color tolerance (%)",
        "value": "0",
        "type": "number",
        "min": 0,
        "max": 100,
        "step": 0.1
      },
      {
        "key": "includeTransparent",
        "label": "Include fully transparent pixels",
        "value": false,
        "type": "checkbox"
      }
    ],
    "registrationFamily": "pixel-editing",
    "files": true,
    "input": false,
    "multiple": false,
    "accept": ".png,.jpg,.jpeg,.webp",
    "maxFileBytes": 20971520,
    "deferImagePreview": true,
    "note": "Runs locally without uploads. One still PNG, JPEG or WebP up to 20 MiB and 16 million decoded pixels, with at most 16,384 pixels per side. Replaces pixels within a hard RGB distance of the selected source color. Zero tolerance matches the exact color; 100 matches all colors. Decoded alpha bytes stay unchanged. The browser may discard hidden RGB values in transparent pixels and convert the source color profile. Download the complete PNG, black-and-white selection mask and settings report. Original metadata is not retained. Outputs are limited to 100 MiB in total; processing stops after 30 seconds.",
    "experience": {
      "automatic": false,
      "single": false,
      "inputMaxLength": 1000000,
      "inputMode": "text",
      "label": "Your text",
      "placeholder": "Type or paste your input…",
      "help": "Up to 1,000,000 characters. Review the settings before running.",
      "helpParts": [
        "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"
  }
}

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