Command line tool, like `xclip -in -t text/html` for Mac. For preparing content for Google Docs/Sheets.

pbcopy_html.swift

#!/usr/bin/env swift

// Based on https://github.com/chbrown/macos-pasteboard/issues/8#issuecomment-906537204

import Cocoa
import Foundation

let pasteboard: NSPasteboard = .general

let dataTypeName : String = "public.html"
let dataType = NSPasteboard.PasteboardType(rawValue: dataTypeName)
var text : String = ""
while let line = readLine() {
    text += line
    text += "\n"
}
let data = text.data(using: .utf8)!
pasteboard.clearContents()
pasteboard.setData(data,  forType: dataType)
exit(0)