Bold text | agent view
The same page content and links, with explicit tool capabilities. Tools marked with an API can run directly through HTTP. Other tools require the browser interface or are not connected yet.
Tool capabilities
{
"id": "bold-text",
"category": "text-tools",
"built": true,
"requirements": "Unicode styled characters with preview; clarify it is not font formatting and support varies.",
"implementation": {
"fields": [],
"note": "Unicode styling changes the characters themselves. Font and screen-reader support varies.",
"experience": {
"automatic": true,
"single": false,
"label": "Your text",
"placeholder": "Hello world!",
"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": "POST /api/v1/tools/bold-text/run",
"api": {
"id": "bold-text",
"name": "Bold text",
"category": "text-tools",
"description": "Turn letters and digits into bold Unicode characters.",
"notes": "Unicode styling changes the characters themselves. Font and screen-reader support varies.",
"human_path": "/en/text-tools/bold-text/",
"method": "POST",
"endpoint": "/api/v1/tools/bold-text/run",
"schema_url": "/api/v1/tools/bold-text",
"input_schema": {
"type": "object",
"additionalProperties": false,
"properties": {
"input": {
"type": "string",
"maxLength": 1000000,
"default": "",
"description": "Plain text input. File tools use files instead unless otherwise documented."
},
"options": {
"type": "object",
"additionalProperties": false,
"properties": {}
}
}
},
"output_schema": {
"type": "object",
"required": [
"tool",
"result"
],
"properties": {
"tool": {
"type": "string"
},
"result": {
"type": "object",
"required": [
"text",
"files"
],
"properties": {
"text": {
"type": [
"string",
"null"
]
},
"data": {
"description": "Parsed JSON when the textual result is JSON."
},
"name": {
"type": "string"
},
"mime": {
"type": "string"
},
"files": {
"type": "array",
"items": {
"type": "object",
"required": [
"name",
"mime",
"bytes",
"base64"
],
"properties": {
"name": {
"type": "string"
},
"mime": {
"type": "string"
},
"bytes": {
"type": "integer"
},
"base64": {
"type": "string",
"contentEncoding": "base64"
}
}
}
}
}
}
}
},
"processing": "Server; same transformation code as browser tools",
"limits": {
"request_bytes": 8388608,
"input_characters": 1000000,
"files_bytes": 5242880,
"max_files": 0,
"timeout_seconds": 12
}
},
"agent_processing": "Server; same transformation code as browser tools",
"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 letters and digits into bold Unicode characters.
How to use Bold text
- Enter your text in the input field.
- The result updates as you type. Adjust the available settings if needed.
- Review the result, then use Copy result or a download link when available.
What to expect
Turn letters and digits into bold Unicode characters. This replaces supported Latin letters and digits with mathematical Unicode symbols. It is not rich-text font formatting. Some apps, search systems and screen readers handle these characters differently.
Try a small example
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