DownThemAll!

Clean, adware free installers: https://board.jdownloader.org/showthread.php?t=54725

FDM accelerates downloads by splitting files into sections and then downloading them simultaneously.In addition, Free Download Manager allows you to adjust traffic usage, organize downloads, control file priorities for torrents, efficiently download large files and resume broken downloads.FDM can boost all your downloads up to 10 times, process media files of various popular formats, drag&drop URLs right from a web browser as well as simultaneously download multiple files!

Augmentable with front-ends such as Youtube-DLG , youtube-dl is a small command-line program to download videos from YouTube and a hundreds other sites. It requires the Python interpreter and is therefore platform-independent.

Internet Download Manager (IDM) is a tool to increase download speeds by up to 5 times, resume and schedule downloads. Comprehensive error recovery and resume capability will restart broken or interrupted downloads due to lost connections, network problems, computer shutdowns, or unexpected power outages. Simple graphic user interface makes IDM user friendly and easy to use.Internet Download Manager has a smart download logic accelerator that features intelligent dynamic file segmentation and safe multipart downloading technology to accelerate your downloads. »

A cross platform front-end GUI of the popular youtube-dl written in wxPython.

EagleGet is a free all-in-one download manager; it supports HTTP, HTTPS, FTP, MMS and RTSP protocol as well as popular online video websites. EagleGet can be integrated to Chrome, IE, Firefox, Opera, and uses multi-threaded technology to boost downloads. EagleGet has many advantages compared to other similar products. For example, EagleGet has ad-free video sniffer, and EagleGet is the first freeware download manager that supports automatic refresh expired download links. EagleGet has visually appealing interface, and it’s completely free without any virus, malware or spyware. »

FlashGot is the free add-on for Firefox and Thunderbird to capture embedded links for all types of files (not just flash movies). -Capture all links from a page-Capture all links from all tabs-Make a selection on a web page and capture all links in that selection.-Filter the links using a mask (e.g. to download only certain types of files)-Pass on the links to your favorite download manager

FreeRapid Downloader is a simple Java downloader that supports downloading from Rapidshare and other file-sharing services.Main Features: support for concurrent downloading from multiple services, downloading using proxy list, download history, smart clipboard monitoring, automatic checking for file's existence on server, automatic plugins updates, simple CAPTCHA recognition, works on MS Windows, Linux and MacOS, easy to use, looks amazingly, simply works!

pyLoad is a fast, lightweight and full featured download manager for many One-Click-Hoster, container formats like DLC, video sites or just plain http or ftp links. It aims for low hardware requirements and platform independence to be runnable on all kind of systems. (desktop pc, netbook, NAS, router)

Xtreme Download Manager is a powerful tool to increase download speed up-to 500%, resume broken/dead downloads, capture FLV videos from any site and schedule downloads.Xtreme Download Manager uses sophisticated dynamic segmentation algorithm,data compression and connection reuse to speed up the download process. Xtreme Download Manager supports HTTP, HTTPS and FTP protocols, firewalls, proxy servers, file redirects, cookies, authorization etc. Xtreme Download Manager integrates with any browser to handle downloads automatically using Advanced browser integration. Xtreme Download Manager is entirely written in Java, so it runs on any Operating System without even being installed. »

Internet Download Accelerator effectively solves three of the biggest problems when downloading files: speed, resuming broken downloads, and management of downloaded files.