Rendering

Render code snippets as images

Render source code with syntax highlighting to PNG, WebP, or JPEG. No API token required.

Rendering

Render code snippets as images

Render source code with syntax highlighting to PNG, WebP, or JPEG. No API token required.

POST/api/code-to-image

Request body

Property	Type	Required	Description
code	string	Yes	Source code to render
lang	string	No	Language for highlighting (e.g. js, ts). Default: js
theme	string	No	Shiki theme. Default: github-dark
format	png \| webp \| jpeg	No	Output format. Default: png (lossless)
width	number	No	Optional width
height	number	No	Optional height
quality	number	No	Optional quality
showLineNumbers	boolean	No	Show 1-based line numbers in a left gutter. Default: false
style	object	No	Optional style options

Responses

200

Image (data URL or binary depending on format)

400

Missing or invalid code

500

Failed to generate code image

Request

curl -X POST "https://bannx.com/api/code-to-image" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_TOKEN" \
  -d '{"code":"console.log(\"hello\")","lang":"string","theme":"string","format":"png","width":0}'

Response

// Binary image (image/png, image/svg+xml, or image/webp)
// Or data URL for inline format