Just tried converting a CSV with ~1k rows and it worked instantly. Nice that everything runs in the browser and require no login. Add excel to chart, excel to csv, excel to json. And try to add more chart options. It will be great if you add this features.
Helpful tool. It will be more better if you add bar chart and scatterplot also. It will he users a lot for getting different charts. And also add graph sharing feature so users can send graph link anywhere without downloading. By the way great and helpful tool.