🔒 Browser-local: your HTML, dates, client details, imported JSON and logo remain in this browser tab. No website is fetched and no report is uploaded or stored.
Format and validate Schema.org values
Select Date & Time, Duration or Currency. No exchange rates or guessed timezones.
Date and time
Generate or inspect a duration
Supports days, hours, minutes and seconds. Months and years have calendar-dependent lengths and are not converted.
Generate a Schema.org Offer price
Formats structured-data fields only. Does not convert currencies or verify real-world prices.
Ready. No data uploaded.
Output
Formatting is not factual verification
Use real dates, durations and prices from the actual page. Explicit timezone offsets avoid guessing the visitor’s local timezone. ISO 8601 calendar months and years are not converted into fixed seconds. Currency codes are checked locally; exchange rates are never fetched.
Step-by-step tutorial: Read the Date / Duration / Currency Helper guide and FAQs →
