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Instantly check if a CPF or CNPJ is mathematically valid.

Convert Japanese real estate sizes to Sq Meters.

Calculate mandatory Canadian payroll deductions.

Decode demographics and verify the Luhn checksum.

Generate QR codes online.

Online stopwatch.

Generate barcodes online.

Instantly convert between Gregorian and Phutthasakkarat (BE) years.

Preview markdown online.

Verify the mathematical checksum of a KSA Iqama.

File Converter changes images between JPG, PNG, and WebP and turns images or text files into PDF, all in your browser. It is a fast, private way to switch formats without installing software or uploading your files anywhere.

Convert Katha, Chatak, and Decimals (Shotok) to standard units.

Convert modern international dates to the official calendar of Nepal.

Calculate lumber volume for purchasing and woodworking.

Calculate discounts and final prices.

Calculate how many boxes fit on a standard EPAL pallet (120x80cm).

Verify a 13-digit NZBN using the GS1 Checksum.

Instantly calculate the size of Greek land and property plots.

Estimate your take-home pay based on standard tax bands.

Add or extract tax for 10% standard and 8% reduced rates.

Word Frequency Counter analyzes any text and shows how many times each word is used, ranked from most to least frequent, along with totals for words, unique words, and characters. It is perfect for writers checking for overused words, students studying keyword density, and SEOs optimizing content. Everything runs instantly in your browser, so your text stays private and nothing is uploaded.

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.

Convert Unix timestamps.

Convert HEX to RGB.