Convert JSON to ICS
Free, fast JSON → ICS. No watermarks, no sign-up.
How to convert JSON to ICS
1. Upload JSON
Drop your JSON file into the converter above.
2. Confirm ICS
Output is already set to ICS. Adjust only if you need to.
3. Download
Convert and download your ICS file instantly.
Format Details
JSON
JSON (JavaScript Object Notation) is a lightweight, human-readable data interchange format derived from JavaScript object literal syntax. It natively supports objects, arrays, strings, numbers, booleans, and null, allowing it to represent arbitrarily nested data structures. JSON has become the universal standard for REST API responses, configuration files, and data interchange on the web, with native parsing support in virtually every programming language.
dataICS
ICS (iCalendar) is the standard calendar exchange format used by Google Calendar, Apple Calendar, Outlook, and most scheduling apps. It stores events with titles, times, locations, and descriptions as plain text. ICS files are easy to share and convert to JSON or CSV for spreadsheets and apps.
otherConverting JSON to ICS: what actually changes
JSON to ICS is one of the conversions this site performs, but the two formats are not interchangeable containers. Here is what the file keeps, what it loses, and how to get a result you can use.
What .JSON and .ICS each hold
.JSON is a data format built for analysing, importing or exchanging records, storing rows, columns and value types. .ICS is a other format built for opening the file in the software that produced it, storing the internal structure of the file. Converting between them is a decision about which of those two jobs the result needs to do.
What changes when categories differ
The records in the .JSON file are re-encoded as a other for opening the file in the software that produced it. Values and structure carry over, but anything that is purely a data concept — column types, delimiters, nesting — has to be expressed in the new format's terms.
When this conversion is the right one
Reach for .ICS when you need a file for opening the file in the software that produced it, starting from analysing, importing or exchanging records. If that is not what you are after, check what else .JSON converts to before committing to this target.
Tips for a clean JSON to ICS conversion
Start from the original file
Convert the .JSON you started with, not an earlier .ICS output. Every extra round trip costs quality and can accumulate formatting drift.
Check the real type, not the extension
Application/json becomes text/calendar. If a file was renamed rather than converted, it will fail to open — rename it back to its true extension before uploading and the conversion will recognise it.
Confirm the structure first
Open the .JSON briefly and check delimiters, headers and encoding. A misplaced separator or a stray quote is the usual reason the output looks wrong even though the conversion succeeded.
Limits worth knowing
Uploads are capped per file (30 MB, or 100 MB for video) and processed temporarily — nothing is kept as a permanent copy. For huge data files, split or compress the source first.
Frequently Asked Questions
How do I convert JSON to ICS?
Upload your JSON file on Convertek, select ICS as the output format, then click Convert. Your ICS file will be ready to download instantly.
Is the JSON to ICS converter free?
Yes. Converting JSON to ICS on Convertek is completely free with no watermarks. Fair upload limits apply (typically 30 MB per file).
Is my file kept after conversion?
No. Files are processed temporarily and not stored permanently. Converted downloads are available only in your browser session.
What is the difference between JSON and ICS?
JSON and ICS are different file formats with distinct use cases. Converting between them lets you use your file in software or workflows that require the ICS format.