Internet Download Accelerator, often called IDA, is a shareware download manager for Microsoft Windows, created by a Ukrainian software company, WestByte Software. The program's common name in the CIS region is Download Master (freeware).
IDA integrates with Yandex.Browser, Internet Explorer, Firefox, Opera, Google Chrome, Apple Safari and all web browsers that are built based on these, such as Maxthon. Once these browsers started a download, IDA takes over. It can also take over the download of streaming video from websites like Youtube. Alternatively, it can accept a list of URLs from the clipboard or through drag and drop.
IDA can adjust the maximum speed of download, either manually or automatically. IDA can also browse FTP servers or preview the contents of ZIP or RAR files before downloading them.