I've found Notepad++ very good with opening huge files. I'm not sure how it compares to Sublime Text, but Notepad++ is already open source: https://github.com/n

I've found Notepad++ very good with opening huge files. I'm not sure how it compares to Sublime Text, but Notepad++ is already open source: https://github.com/notepad-plus-plus/notepad-plus-plus https://github.com/notepad-plus-plus/notepad-plus-plus