https://connect.mozilla.org/t5/discussions/how-to-convert-multiple-json-files-into-excel-or-csv-without/m-p/125604#M49557 <P>I have been dealing with hundreds of JSON files recently, and converting them manually is becoming extremely difficult and time-consuming. I tried a few free online converters and some script-based methods, but they either failed with bulk files or changed the original formatting of the JSON data.</P><P>The biggest issue I’m facing is maintaining the nested structure and proper alignment of key-value pairs after conversion. Some tools also become very slow when handling large JSON files, and online platforms raise security concerns while uploading important data.</P><P data-unlink="true">While searching for a reliable solution, I found <FONT color="#000000">a standalone utility <STRONG>SysTools <A title="JSON Converter&nbsp;" href="https://www.systoolsgroup.com/json/converter/" target="_self">JSON Converter&nbsp;</A> Tool</STRONG></FONT><STRONG>.</STRONG> It claims to support batch conversion of JSON files into Excel, CSV, PDF, and other formats without disturbing the data structure. This advanced software is compatible with both Windows &amp; macOS.</P><P>I wanted to know if anyone here has used this software for bulk JSON conversion. Does it actually preserve the formatting and work efficiently with large JSON files? Also, is using a dedicated JSON converter more reliable than free tools for regular professional use?</P> Mon, 18 May 2026 12:11:07 GMT mathew0406 2026-05-18T12:11:07Z https://connect.mozilla.org/t5/discussions/how-to-convert-multiple-json-files-into-excel-or-csv-without/m-p/125604#M49557 <P>I have been dealing with hundreds of JSON files recently, and converting them manually is becoming extremely difficult and time-consuming. I tried a few free online converters and some script-based methods, but they either failed with bulk files or changed the original formatting of the JSON data.</P><P>The biggest issue I’m facing is maintaining the nested structure and proper alignment of key-value pairs after conversion. Some tools also become very slow when handling large JSON files, and online platforms raise security concerns while uploading important data.</P><P data-unlink="true">While searching for a reliable solution, I found <FONT color="#000000">a standalone utility <STRONG>SysTools <A title="JSON Converter&nbsp;" href="https://www.systoolsgroup.com/json/converter/" target="_self">JSON Converter&nbsp;</A> Tool</STRONG></FONT><STRONG>.</STRONG> It claims to support batch conversion of JSON files into Excel, CSV, PDF, and other formats without disturbing the data structure. This advanced software is compatible with both Windows &amp; macOS.</P><P>I wanted to know if anyone here has used this software for bulk JSON conversion. Does it actually preserve the formatting and work efficiently with large JSON files? Also, is using a dedicated JSON converter more reliable than free tools for regular professional use?</P> Mon, 18 May 2026 12:11:07 GMT https://connect.mozilla.org/t5/discussions/how-to-convert-multiple-json-files-into-excel-or-csv-without/m-p/125604#M49557 mathew0406 2026-05-18T12:11:07Z