Everyday clarity, across borders
A little clarity
for every day.
Convert a file. Work out a result. Find information for your place. Practical tools, with their methods and sources in view.
Independent. Open to everyone. No account needed.
Use your data. Get something done.
Files, dates and everyday calculations
Convert a file, check a checksum or work out a result. International file tools process your input in your browser.
ICS to CSV converter
Expand recurring calendar events into a date-bounded CSV, with timezone and conversion-loss details.
Open tool Files and dataJSONL to CSV converter
Convert newline-delimited JSON with heterogeneous columns, invalid-line reporting and typed cell values.
Open tool Developer toolsSHA-256 file checksum
Calculate a SHA-256 checksum locally in chunks and compare it with an expected digest.
Open tool Files and dataJSON flatten and unflatten
Flatten JSON into reversible JSON Pointer paths while preserving arrays, empty containers and data types.
Open toolPlaces and local time
Plan across countries and time zones
Choose among 250 country and territory catalog entries. Find source-listed cities, towns and villages, or use your own coordinates and time zone.
World time and elapsed-time planner
Compare an interval across named time zones, resolve repeated clock times and export one UTC calendar event using pinned IANA rules.
Open tool Prayer timesWorldwide calculated prayer calendar
Find a source-listed city, town or village, review coordinates and method, and export a calculated monthly timetable.
Open toolUseful in a particular place
Country tools with their sources in view
Published tools for 70 countries and territories. Each page identifies the location or institution it covers.
和暦・西暦変換
Convert exact dates between Gregorian and Showa, Heisei or Reiwa, with transition-date validation and batch CSV.
Open tool Work and moneyPhilippines SSS contribution calculator
Calculate the business employee and employer shares, EC and MPF using the official January 2025 schedule.
Open tool Fuel and travelTanzania fuel prices by town
Search 190 Tanzania Mainland localities in the latest validated EWURA retail cap-price notice and calculate a fuel budget.
Open tool Fuel and travelPico y placa en Bogotá
Consulta la restricción general por fecha, hora y último dígito de placa para vehículos particulares en octubre de 2026.
Open tool MeasurementsTareas a metros cuadrados
Convierte tareas dominicanas, metros cuadrados y hectáreas en ambos sentidos, con conversión por lotes.
Open tool Fuel and travelPakistan petrol prices and fuel calculator
View dated PSO petrol and diesel publications, compare changes and calculate litres, budget or trip cost.
Open toolA time and a place
Find your prayer times
Make dates make sense
Small tools. Useful answers.
Hijri date converter
Move between Gregorian and calculated Umm al-Qura dates, in either direction.
Open converter →Ethiopian calendar
Explore the 13-month calendar and convert dates to and from Gregorian.
Explore the calendar →Prayer-time calculator
Choose coordinates, a time zone and a calculation method for another location.
Calculate times →Know what you are looking at
Useful information
starts with a clear source.
Malaysian timetables use dated JAKIM records when available. Saudi and Egyptian times are calculations with their method and location shown. When data is unavailable, we say so.
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