Hello HN,<p>I’m Robbert, the creator of editCSVonline.com.<p>editCSVonline is a free & lightweight Vanilla Javascript web app for editing CSV files online in a spreadsheet-like matter.<p>It uses two Javascript libraries: the first is PapaParse for parsing CSV files, the second is DataGridXL, the fast and reliable Excel-like data grid. (I am the author of DataGridXL: I was very happy to see the lib reach the front page on Hacker News some three months ago.)<p>I have created editCSVonline for a number of reasons:<p>- It's nice for anyone to not have to resort to Google Sheets or Microsoft Excel to edit a simple CSV file.<p>- I use simple tools like this (tools that aid developers) all the time: tools like JSON linters, favicon generators or SVG icon finders. This is my free help-a-fellow-dev web app.<p>- It promotes my product DataGridXL.<p>In many cases I have found that editing CSV files using editCSVonline/DataGridXL gives better performance than Google Sheets, which I am quite proud of. Take a look at the DataGridXL performance demo (<a href="https://www.datagridxl.com/demos/one-million-cells" rel="nofollow">https://www.datagridxl.com/demos/one-million-cells</a>) to see the difference with other data grids out there.<p>Please let me know if you have any suggestions or comments!