Fast and simple
Open a tool, enter what you need, and get a clear result.
Fast, focused tools for everyday work
Free online tools for everyday tasks
ToolMetro is a growing collection of free online calculators, converters, text tools and developer utilities. No sign-up, no clutter—just fast, useful tools that work.
Popular Tools
Start with the tools people reach for most often.
BMI Calculator
Calculate your Body Mass Index using metric or imperial units and see your BMI category, healthy weight range, BMI Prime, and Ponderal Index.
Password Generator
Generate secure random passwords with configurable length and character groups.
Word Counter
Count words, characters, sentences, paragraphs, and estimated reading time as you write or paste text.
JSON Formatter
Format, minify, and validate JSON so structured data is easier to read and copy.
Base64 Encoder / Decoder
Encode plain text to Base64 or decode Base64 strings back to readable text.
URL Encoder / Decoder
Encode text into URL-safe percent encoding or decode URL-encoded values back to readable text.
Browse by Category
Find related tools faster by choosing the kind of task you need to finish.
Calculators
Focused calculators for percentages, quantities, comparisons, and everyday number questions.
Text Tools
Utilities for counting, cleaning, transforming, and preparing written content.
Developer Tools
Practical helpers for formatting data, checking code inputs, and speeding up common development tasks.
Encoding Tools
Utilities for encoding, decoding, and preparing text values for URLs, data fields, and technical workflows.
Health & Fitness
Simple calculators for health, fitness, body measurements, and general wellness reference values.
Why ToolMetro?
No account required
Use ToolMetro without sign-ups, profiles, or extra steps.
Works entirely in your browser
Tools are built for quick client-side tasks wherever possible.
New tools added regularly
The collection keeps growing with practical everyday utilities.