Markdown to HTML

Convert Markdown text to HTML in a single API call. Optionally sanitize the output to strip unsafe tags and prevent XSS.

Get API Key

Overview

Use Cases

Rendering user-generated Markdown content safely in web apps
Converting README files or documentation to HTML
Building rich-text editors with Markdown input and HTML preview
Preprocessing Markdown before storing rendered HTML

Features

Full CommonMark Markdown support

Optional HTML sanitization to strip unsafe tags and attributes

Returns ready-to-render HTML string

API Endpoints

Convert Markdown to HTML

Converts a Markdown string to HTML. Pass sanitize true to strip potentially unsafe tags like script and iframe from the output.

POST

https://api.requiems.xyz/v1/convert/markdown

Parameters

Name	Type	Required	Description
markdown	`string`	Required	The Markdown text to convert.
sanitize	`boolean`	Optional	When true, sanitizes the HTML output to remove unsafe tags and attributes.

Try it out

Live Demo

Request

markdown * (string)

The Markdown text to convert.

sanitize (boolean)

When true, sanitizes the HTML output to remove unsafe tags and attributes.

Response Fields

Field	Type	Description
html	`string`	The rendered HTML output

Code Examples

curl -X POST https://api.requiems.xyz/v1/convert/markdown \
  -H "requiems-api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"markdown": "# Hello\n\nThis is **bold** text.", "sanitize": true}'

import requests

url = "https://api.requiems.xyz/v1/convert/markdown"
headers = {
    "requiems-api-key": "YOUR_API_KEY",
    "Content-Type": "application/json"
}
payload = {
    "markdown": "# Hello\n\nThis is **bold** text.",
    "sanitize": True
}

response = requests.post(url, json=payload, headers=headers)
print(response.json()['data']['html'])

const response = await fetch(
  'https://api.requiems.xyz/v1/convert/markdown',
  {
    method: 'POST',
    headers: {
      'requiems-api-key': 'YOUR_API_KEY',
      'Content-Type': 'application/json'
    },
    body: JSON.stringify({
      markdown: '# Hello\n\nThis is **bold** text.',
      sanitize: true
    })
  }
);
const { data } = await response.json();
console.log(data.html);

require 'net/http'
require 'json'

uri = URI('https://api.requiems.xyz/v1/convert/markdown')
request = Net::HTTP::Post.new(uri)
request['requiems-api-key'] = 'YOUR_API_KEY'
request['Content-Type'] = 'application/json'
request.body = {
  markdown: "# Hello\n\nThis is **bold** text.",
  sanitize: true
}.to_json

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) do |http|
  http.request(request)
end

puts JSON.parse(response.body)['data']['html']

Error Responses

422

unprocessable_entity

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