(And it comes with a collection of over 700 games) Scartol: The Stones website also features a nifty screensaver for OSX which replays SGF files.see with a description and some screenshots Latest update includes a Quicklook view generator showing board positions in preview, coverflow, and large icon view. Also adds the most important properties to the More Info section of the OSX file Get Info window. Currently has an SGF file Spotlight metadata importer that allows the user to quickly search for one or more SGF properties such as Event, Result, Winner, Handicap, etc. SGF-Tools A free, open-source project of SGF file utilities for OSX.SenteGoban can also be used to browse/edit SGF File games, not just to play against gnugo or on the Go Servers.(Out of date - as of 2020 the software no longer works).
As of the freeware version is unavailable, but version 3.2.1 is still available as a demo for version 4.x There is also an open source version (with substantially fewer features) available.
As of version 0.10, it runs natively on Mac, as well as Windows and Linux. It looks beautifull and works very much like a native application.