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Verify SIREN and SIRET codes using the Luhn Algorithm.
Verify a 13-digit NZBN using the GS1 Checksum.
Generate color palettes.
Convert historic Varas Cuadradas into modern area metrics.
Calculate your retirement contributions based on your salary.
Test your typing speed.
Calculate your CPF contributions and final take-home pay.
Calculate your monthly net pay including NHIF and NSSF.
Convert numbers into words.
Check if you pass the Canadian mortgage stress test rules.
Adjust historical dates for calendar drift.
Generate QR codes online.
Calculate your net salary after German taxes.
Verify the structure of a Nigerian Bank Verification Number.
Convert text to binary and vice versa.
Format XML files online.
Pomodoro productivity timer.
CSV to JSON Converter turns CSV data (with a header row) into a clean JSON array of objects, automatically converting numbers and handling quoted fields. Copy the JSON or download it for use in APIs, apps, and config files. It is a fast, private developer tool that runs entirely in your browser with no uploads.
Get accurate daily prayer times (Fajr, Sunrise, Dhuhr, Asr, Maghrib, Isha) for cities across Afghanistan including Kabul, Herat, Mazar-i-Sharif, Kandahar, Jalalabad, Kunduz, Ghazni, and Bamiyan. Also shows Qibla direction and Hijri date.
Generate htpasswd files.
Convert your Salaire Brut to Salaire Net.
Translate historic British Imperial land sizes to modern metrics.
Estimate your Irish net take-home pay including USC.
Estimate the Impuesto sobre Transmisiones Patrimoniales.