OpenNestXML to ICS Converter
Convert XML to iCal Calendar directly in your browser. Your files never leave your device — no uploads, no account, no tracking.
Choose files
or drag & drop here
100% local — your file never leaves this device.
How to convert XML to ICS
Choose your XML file
Select a XML from your device — click or drag & drop.
Pick ICS as the output
We auto-detect your file and show ICS as a recommended target.
Convert & download
Everything runs locally in your browser, then you download the result instantly.
Why use OpenNest to convert XML to ICS?
100% local
Your XML file is converted entirely in your browser — nothing is uploaded.
Free & no account
No signup, no limits. Convert as many files as you need, on any device.
Private by design
No servers, no tracking, no logs. Close the tab and every trace is gone.
Supported input & output
| Input — XML | .xml · application/xml |
|---|---|
| Output — iCal Calendar | .ics · text/calendar |
FAQ — XML to ICS
Is XML to ICS conversion free?
Yes — completely free, no account, no signup, and no file limits.
Do I need to upload my XML file?
No. The conversion runs entirely in your browser; your file never leaves your device.
How do I convert XML to ICS?
Select your XML file, choose ICS as the target, and click Convert. The result downloads instantly.
Is the output quality preserved?
Conversion is done locally with high-quality output, preserved to the extent the target format allows.