JDownloader is a

download manager A download manager is a software tool that manages the downloading of files from the Internet, which may be built: into a Web browser, or as a, usually more sophisticated program Program, programme, programmer, or programming may refer to: Bu ...

, written in

Java Java (; id, Jawa, ; jv, ꦗꦮ; su, ) is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea to the north. With a population of 151.6 million people, Java is the world's List ...

, which allows automatic download of groups of files from

one-click hosting A file-hosting service, cloud-storage service, online file-storage provider, or cyberlocker is an internet hosting service specifically designed to host user files. It allows users to upload files that could be accessed over the internet afte ...

sites. JDownloader supports the use of premium accounts. Some parts of the code are

open-source Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use the source code, design documents, or content of the product. The open-source model is a decentralized sof ...

. In December 2009 the program's website was in the top 1000 visited websites of Spain. German online magazine

Chip.de ''Chip'' is a computer and communications magazine published by CHIP Holding (formerly Vogel Burda Holding GmbH) in several countries of Europe and Asia. The German edition of ''CHIP'' was launched in September 1978 and is one of Germany's oldest ...

designated it "newcomer of the year" in 2009, after it

ranked A ranking is a relationship between a set of items such that, for any two items, the first is either "ranked higher than", "ranked lower than" or "ranked equal to" the second. In mathematics, this is known as a weak order or total preorder of ...

among the top 50 most downloaded applications, with over half a million downloads in a year. In 2011, JDownloader was superseded by its successor, JDownloader 2. While support for the original JDownloader still exists on forums, the official site only lists JDownloader 2. Mid-2012 there were complaints that JDownloader's installer added

adware Adware, often called advertising-supported software by its developers, is software that generates revenue for its developer by automatically generating online advertisements in the user interface of the software or on a screen presented to the ...

without the user's consent. The JDownloader installation contains adware according to several sources, including the developer's own forums. There were further complaints mid-2014. In response a link to the non-adware version was made available but only in
forum post
In June 2013, JDownloader's ability to download copyrighted and protected

RTMPE Real-Time Messaging Protocol (RTMP) is a communication protocol for streaming audio, video, and data over the Internet. Originally developed as a proprietary protocol by Macromedia for streaming between Flash Player and the Flash Communication Se ...

streams was considered illegal by a German court. This feature was never provided in an official build, but was supported by a few nightly builds.

License

Contrary to the license, some source files are not publicly available. The developers stated that the license may change—the program will remain open source, but will get a license which allows closed-source parts.

Features

Specified features: * Versions run under (

Microsoft Windows Windows is a group of several proprietary graphical operating system families developed and marketed by Microsoft. Each family caters to a certain sector of the computing industry. For example, Windows NT for consumers, Windows Server for serv ...

Linux Linux ( or ) is a family of open-source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically packaged as a Linux distribution, which ...

, Mac, etc.), and

1.5 or higher * Can download several files simultaneously, over several connections * Can automatically solve some

CAPTCHA A CAPTCHA ( , a contrived acronym for "Completely Automated Public Turing test to tell Computers and Humans Apart") is a type of challenge–response test used in computing to determine whether the user is human. The term was coined in 2003 ...

s with its own OCR module (JAntiCaptcha) * Automatic extractor (including password list search) for RAR archives * Decrypt RSDF, CCF and DLC Container files * About 300 decrypt plugins for many services. For example, sj.org, UCMS, WordPress, and RLSLog. * Supports "hoster plugins" for downloading from e.g. a specific one-click hoster (1230 ) * Can automatically acquire a new IP address to save waiting time with hosts which limit downloads to one address (1400 routers supported) * Integrated package manager for additional modules (e.g., Web interface, Shutdown) * Theme support * Multilingual The user-specified download links are split into packages to enable individual pausing and continuing of downloads. The program can be configured to unpack split RAR archives automatically after all parts have been downloaded. JDownloader supports "waiting time" and

recognition on many file hosting sites, enabling batch downloads without user input. Premium users of one-click-host sites can use multiple connections per downloaded file, which increases download speed in most cases. It also supports

Metalink Metalink is an extensible metadata file format that describes one or more computer files available for download. It specifies files appropriate for the user's language and operating system; facilitates file verification and recovery from data ...

, a format for listing multiple mirrors. Software updates and minor patches are released frequently; by default JDownloader updates itself upon initialization. JDownloader uses a

continuous deployment Continuous deployment (CD) is a software engineering approach in which software functionalities are delivered frequently and through automated deployments. Continuous deployment contrasts with continuous delivery (also abbreviated CD), a similar ...

system where modifications to the program code (e.g. adapting a plugin to changes in a download site's HTTP API) can be released within minutes.Thomas Rechenmacher
The JDownloader Continuous Deployment Immune System
Diploma thesis, Friedrich-Alexander-Universität Erlangen-Nürnberg: 2014. For the beta version, frequently occurring errors in plugins are detected via automated error reports (leaving out some privacy-sensitive data including the user's IP address and the name of the downloaded file).

References

External links

* {{Download managers 2008 software Download managers Free application software Free software programmed in Java (programming language)

License

Features

See also

References

Further reading

External links