On the client side, all you need is a Web browser such as Firefox, Konqueror, Internet Explorer and many more.
IE6 has been been dropped starting in Tiki7. If you need to support IE6 users, stay with Tiki6 LTS.
Related: Operating System independence
aliasCross-browser | Cross browser | Cross-browser independance | Cross-browser independence | Chromium | Opera | Safari | Chrome | Firefox | Internet Explorer | IE6 | IE7 | IE8 | IE9 | Konqueror