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Estimate the number of gypsum panels needed for a room.
Convert hex to decimal.
Calculate mandatory Canadian payroll deductions.
The Days Calculator instantly counts how many days are between two dates, and shows the result in weeks, weekdays (business days), weekend days, and hours. Switch to the Add / Subtract mode to find the date a set number of days before or after any start date — perfect for deadlines, due dates, contracts, countdowns, and project planning. It is free, instant, and runs privately in your browser.
Generate placeholder text.
MD5 Generator creates an MD5 hash from any text string, useful for checksums, fingerprints, and verifying data integrity. Paste your text to get the hash instantly. Hashing runs in your browser so your input stays private.
Verify a 12-digit Aadhaar using the Verhoeff algorithm.
Calculate discounts and final prices.
Calculate aspect ratios.
Verify the verification digits of a Brazilian CPF.
Calculate your Body Mass Index.
Generate barcodes online.
Calculate the chargeable dimensional weight for airline cargo.
Verify HMRC format rules for UK NI Numbers.
Add or extract tax for 10% standard and 8% reduced rates.
Base64 Encoder converts text to Base64 and decodes Base64 back to plain text. Useful for embedding data, debugging APIs, and handling encoded strings. Encoding and decoding happen instantly in your browser with no data sent anywhere.
Dice Roller lets you roll one or many virtual dice with any number of sides — D4, D6, D8, D10, D12, D20, or D100 — and shows each result plus the total. It is perfect for board games, tabletop RPGs like D&D, classrooms, and any time you need dice but do not have them. Rolls are fair and instant, right in your browser.
Verify Spanish National ID (NIF) and Foreigner ID (NIE).
Minify JS code.
Calculate percentages easily.
Translate Western dates into the traditional Chinese agricultural calendar.
Calculate your property tax for England & Northern Ireland.
Calculate hot mix asphalt weight for paving driveways.
Calculate your mandatory monthly statutory deductions.