What are some alternatives?
When comparing Octoparse and XmlSitemapGenerator.org, you can also consider the following products
import.io - Import. io helps its users find the internet data they need, organize and store it, and transform it into a format that provides them with the context they need.
DYNO Mapper - Create Sitemaps with the DYNO Mapper Visual Sitemap Generator.
Apify - Apify is a web scraping and automation platform that can turn any website into an API.
XML-Sitemaps.com - Free Online Google Sitemap Generator.
Content Grabber - Content Grabber is an automated web scraping tool.
MySitemapGenerator - Online XML Generator for SEO and eCommerce. Creates XML Sitemaps, Shopping Feeds, RSS.