From Holy SEO:
Holy SEO Sitemap Generator is a software that will help generate sitemaps by spidering website and collect all the internal links.
Holy SEO Sitemap Generator will export collected links to a nicely formatted html file.
Holy SEO Sitemap Generator is free for personal use, but comes without any warranty. Please, note that the program acts like spider, but will download all the pages of the target site. Do not use this tool to crawl 3rd party sites without their permission.
Holy SEO Sitemap Generator passed our internal tests and should be stable. However, bugs are part of any software development. We will be happy if you report any bug you find while using the application, to be used for future versions.