Web Go Board is a free Chrome add-on developed by KOCMOHABT that allows users to edit SGF files directly in their browser. With the use of HTML5, this tool provides a convenient way to work with SGF files without the need for additional software.

One of the standout features of Web Go Board is its ability to edit SGF files directly in the browser. This means that users can make changes to their files without the need to download or install any additional software. The tool also provides a simple and intuitive interface, making it easy for users to navigate and edit their SGF files.

Please note that in order to open local SGF files, users need to go to the chrome://extensions page and turn on the "Allow access to file URLs" flag. This ensures that users can work with their local files seamlessly.

Overall, Web Go Board is a useful tool for anyone who works with SGF files and prefers to do so directly in their browser. Its simple interface and convenient features make it a valuable addition to any SGF editing workflow.