OmniDiskSweeper shows you the files on your drive, largest to smallest, and lets you quickly Trash or open them.
For Macs running macOS 10.13 (High Sierra) and later, click the download button to get the latest version.
For Macs running macOS 10.12, download version 1.10.
For Mac OS X 10.8 to OS X 10.11, download version 1.9.
For Mac OS X 10.6 and 10.7, download version 1.8.
For Mac OS X 10.4 and 10.5, download version 1.7.2.
OmniWeb is no longer actively maintained, but when it was under active development it was a powerful, award-winning, feature-rich alternative to mainstream web browsers.
For Mac OS X 10.4.8 (Tiger) to Mac OS X 10.11 (El Capitan), click the download button on the right for OmniWeb 5.
For macOS 10.12 (Sierra) and later, try the OmniWeb 6 test builds.