You can run SAP transactions directly from a standard Web browser in the SAP GUI for HTML, and get direct access to transactions in the SAP system with most of the functionality available in the SAP GUI for Windows.The prerequisite for this is ITS should be enabled.
GUI for HTML: It is a web technology by SAP, which will render SAP GUI in html, this will automatically convert SAP screens to html
Below is the Browser URL format to call transaction
<host>:<port>/sap/bc/gui/sap/its/webgui/?~transaction=<TCODE>&sap-client=<CLIENT>&sap-language=EN
Example :
http://sapnuts.com:8000/sap/bc/gui/sap/its/webgui/?~transaction=MM03&sap-client=800&sap-language=EN