The toolbox for every task.

Free, fast online tools for finance, dev and text.

HandTools brings free online tools for finance, development, text, and networking into one clean toolkit. Use calculators, converters, validators, generators, editors, and network diagnostics without installing software.

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Password Generator

Create secure random passwords.

Currency Converter

Convert amounts between 150+ currencies with live rates.

BMI Calculator

Body mass index based on height and weight.

Unit Converter

Convert between length, weight, and temperature.

QR Code Generator

Create a QR code from text.

Tax Calculator

Quickly estimate your income tax and net take-home pay.

Finance/Calculations

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Compound Interest Calculator

Calculate the growth of your investment over time.

Currency Converter

Convert amounts between 150+ currencies with live rates.

Tax Calculator

Quickly estimate your income tax and net take-home pay.

Developer Tools

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CPF/CNPJ Generator

Generate valid CPF or CNPJ numbers for testing purposes.

JSON Formatter

Clean, prettify, and validate your JSON strings with options.

SHA-256 Hasher

Compute the SHA-256 hash of any input instantly.

Text & Content Tools

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Word Counter

Count words, characters, and sentences in real time.

Case Converter

Convert text between uppercase, lowercase, CamelCase, and more.

Lorem Ipsum

Generate placeholder text for design and layout.

Network

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IP Validator

Validate IPv4 addresses.

CIDR Calculator

Calculate network, broadcast, mask and hosts from a CIDR.

Cable Budget Calculator

Estimate how many 305 m cable drums you need based on average run length and point count.

PDF Tools

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Merge PDFs

Combine multiple files into one PDF.

Split PDF

Separate pages or page ranges from a PDF.

PDF to JPG

Export each PDF page as a JPG image.