**git instaweb -d webrick**:
```bash
% git instaweb -d webrick
[2010-02-18 17:27:01] INFO WEBrick 1.3.1
[2010-02-18 17:27:01] INFO ruby 1.8.7 (2008-08-11) [i686-darwin10.0.0]
No known browser available.
http://127.0.0.1:1234
```
Now open http://127.0.0.1:1234 in your browser.
You can also add this this to ./gitconfig:
```bash
[instaweb]
httpd=webrick
```