SiteSucker is described as 'MacOS application that automatically downloads websites from the Internet. It does this by asynchronously copying the site's webpages, images, PDFs, style sheets, and other files to your local hard drive, duplicating the site's directory structure' and is a website downloader in the file sharing category. There are more than 25 alternatives to SiteSucker for a variety of platforms, including Mac, Windows, Linux, Web-based and Android apps. The best SiteSucker alternative is Wget, which is both free and Open Source. Other great apps like SiteSucker are HTTrack, ArchiveBox, SiteOne Crawler and WebCopy.
GNU Wget is a free software package for retrieving files using HTTP(S) and FTP, the most widely-used Internet protocols. It is a non-interactive command line tool, so it may easily be called from scripts, cron jobs, terminals without X-Windows support, etc.
Most users think Wget is a great SiteSucker alternative.
Wget is the most popular Windows, Mac & Linux alternative to SiteSucker.
Wget is the most popular Open Source & free alternative to SiteSucker.
Open-source software allowing users to download complete websites, maintaining directories and link structures for offline browsing. Offers updates, resume options, and major OS support.
Most users think HTTrack is a great SiteSucker alternative.
HTTrack is the most popular Android alternative to SiteSucker.
Self-hosted archiving platform storing web content as HTML, PDFs, screenshots, media, and WARC files; imports links from bookmarks, RSS, or files; supports browser history, complex sites, JSON indexing, Git repo archiving, regular scheduling, and offline browsing.
ArchiveBox is the most popular Self-Hosted alternative to SiteSucker.
A free in-depth website analyzer providing audits of security, performance, SEO, accessibility and other technical aspects. Available as a desktop application for Windows/macOS/Linux and as a CLI tool for advanced users and CI/CD processes. It also includes an offline web page exporter.
Cyotek WebCopy is a free tool for copying full or partial websites locally onto your harddisk for offline viewing.
ScrapBook is a Firefox extension, which helps you to save Web pages and manage the collection. Key features are lightness, speed, accuracy and multi-language support. Major features are:
Download web and FTP sites for offline use on Windows, with support for bulk and scheduled tasks, selective downloading, Chromium engine, password protection, social site capture, and migration of projects or settings to new systems or external media.
Offline Explorer is the most popular commercial alternative to SiteSucker.
Every day, countless of websites go offline for good. High server costs, government censorship, venture capitalism are some of the threats, many of your favorite websites are facing.
grab-site is a crawler for archiving websites to WARC files. It includes a dashboard for monitoring multiple crawls, and supports changing URL ignore patterns during the crawl.
The most powerful online cloud based download tool for websites, it copy and download all links from a website and can crawl link structure.
Website Copier is the most popular Web-based alternative to SiteSucker.
Wpull is a wget-compatible web downloader and crawler with WARC and Python/Lua scripting support
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It's fairly easy to set up and use. I recommend WAIL instead, though, that uses HTTrack, but has a better GUI