What are some alternatives?

When comparing XML-Sitemaps.com and Octoparse, you can also consider the following products

DYNO Mapper - Create Sitemaps with the DYNO Mapper Visual Sitemap Generator.

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.

GlooMaps - Create your visual sitemap on the go - easy peasy

Apify - Apify is a web scraping and automation platform that can turn any website into an API.

WonderWebWare Sitemap Generator - Sitemap Generator is freeware program that will help you to automatically generate site maps for google, bing and yahoo in their respective file formats.

Content Grabber - Content Grabber is an automated web scraping tool.