Free Online Converters

Converters are the tools you reach for when two systems don't agree — different time zones, different unit systems, different date formats, different currencies, different file structures. UtilsGo gathers the ones people need most into a single set that loads instantly and works without an account.

For dates and time, the Date Converter swaps formats (ISO, US, UK, custom), the Timestamp Converter moves between Unix epoch and human dates with millisecond precision, and the Timezone Converter shows a single moment in every timezone at once — useful for scheduling meetings across continents. The Nepali Calendar and English Calendar converters move between the Bikram Sambat and Gregorian systems, including weekdays, tithis and holidays.

For units, the Unit Converter handles length, weight, area, volume, temperature, speed, energy and digital storage with high-precision math. The Currency Converter uses live exchange rates for major and emerging-market currencies.

For data, the CSV to JSON converter parses a CSV (including quoted fields, escaped commas and custom delimiters) into well-formed JSON you can copy straight into your code. The Number to Words tool spells numbers as cheque-ready English — useful for invoices, contracts and legal documents.