Primary tool

JSON Epoch Converter.

Paste JSON or a raw timestamp. Our json epoch time converter detects fields, infers precision, and shows readable dates in your chosen timezone.

Private All parsing and conversion happens in your browser. Nothing is sent to our servers.

Detects seconds, milliseconds, microseconds, and nanoseconds in JSON fields.

JSON Epoch Time Converter Online

Use this json epoch converter when debugging REST responses, webhooks, or log exports. It recognizes common timestamp keys and works as a full json timestamp converter online—no install, no upload. Pair it with our unix timestamp converter for single values.

Frequently Asked Questions

How does mixed precision detection work?

We analyze digit length and plausible date ranges to classify each value as seconds, milliseconds, microseconds, or nanoseconds—so one JSON file can safely mix formats.

Which JSON keys are treated as timestamps?

Common names like createdAt, timestamp, updated_at, and keys ending in _at or Time. Root-level numeric values are also converted.

Can I use this as a json timestamp converter online without signing up?

Yes. No account is required. All json epoch time conversion happens in your browser at no cost.