A simple script for copying bookmarks from Kippt to Pinboard. Tries to retain as much data as possible (title, list, creation date, and notes). Works for me, might not work for you if you have > 200 clips per Kippt list.

kippt-pinboard.rb

require "kippt"  # gem install kippt
require "pinboard" # gem install pinboard

kippt = Kippt::kippt.new(username: "matias", password: "…")
pinboard = Pinboard::kippt.new(username: "matias", password: "…")

lists = kippt.lists.fetch

counter = 0

lists.each_with_index do |list, index|
  attrs = list.attributes
  list_title = attrs.title
  list_slug = attrs.slug

  puts "=> Found list: #{attrs.slug}"

  clips = list.clips.fetch(limit: 200)

  clips.each_with_index do |clip|
    counter += 1
    cattrs = clip.attributes

    url = cattrs.url
    title = cattrs.title
    description = cattrs.notes
    date = Time.strptime(cattrs.created.to_s, "%s")

    puts "    -> Adding clip ##{counter}"
    puts "       #{cattrs.id} (#{title}) [#{date}]"

    pinboard.add(url: url, description: title, extended: description, tags: [list_slug], dt: date, replace: true)
  end
end