SSmartNtools

All tools33 tools

Free · No signup
Σ

Scientific Calculator

Trigonometric functions, logarithms and exponentials
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Bm

BMI Calculator

Body mass index with classification table
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Yr

Age Calculator

Calculate your exact age in years, months and days
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Pg

Pregnancy Calculator

Due date and gestational age calculator
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$

Financial Calculator

Installments, simple interest and financing
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%

Compound Interest

Simulate investment growth over time
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Tp

Tip Calculator

Calculate the tip and split the bill between people
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New
Fu

Fuel Cost Calculator

Calculate the fuel cost of a trip
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Popular
€

Currency Converter

Real-time updated exchange rates
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↔

Unit Converter

Length, weight, volume, area and much more
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°

Temperature Converter

Celsius, Fahrenheit and Kelvin
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Popular
Ro

Clothing Size Converter

Size chart for BR, US, EU and UK
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Popular
Sh

Shoe Size Converter

Size chart for BR, US, EU and UK
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Popular
Pw

Password Generator

Strong and secure passwords with customizable options
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QR

QR Code Generator

Create QR codes for links, text and contact info
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Id

UUID Generator

Bulk universal unique identifiers v4
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New
CV

Resume Builder

Build a resume with photo, import from LinkedIn and export to PDF
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↗

Image Resizer

Change dimensions without losing visual quality
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Cx

Image Compressor

Reduce file size while keeping visual quality
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New
Hc

HEIC to JPG Converter

Convert iPhone HEIC photos to JPG or PNG right in your browser
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Tx

Text Editor

Rich formatting with PDF, DOCX and HTML export
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Tc

Text Comparator

Compare 2 to 4 texts side by side and see the differences
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<>

Code Editor

Syntax highlight for HTML, CSS, JS, Python and more
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{}

JSON Formatter

Format, validate and minify JSON in one click
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New
Sc

SCORM Debugger

Test and debug SCORM 1.2 packages in your browser, nothing is uploaded
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Pa

Palette Generator

Create harmonious palettes using color theory
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Wc

World Clock

Simultaneous times across multiple time zones
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Dt

Date Difference

Calculate days, months and years between two dates
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ts

Timestamp Converter

Unix timestamp to readable date and vice versa
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St

Stopwatch / Timer

Stopwatch with laps and countdown timer
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Word Counter

Words, characters, paragraphs and reading time
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~/

Link Shortener

Create short links that expire in 7 days
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New
[]

Share Screen

Stream your screen in 1080p with chat, right in the browser
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Free online tools for everyday tasks

Smartntools brings together free calculators, converters, generators and utilities that run right in your browser. No installation, no sign-up — pick a tool and get instant results.

Free tools, no sign-up required

Smartntools is a collection of small, focused web tools designed to solve everyday tasks in seconds. Each tool works entirely in your browser, so your data stays on your device and there is nothing to download or configure.

From calculating your BMI or a loan installment to converting currencies, generating passwords and counting words, every tool is free, fast and available in five languages. New tools are added regularly.

Tool categories

Calculators

Calculators for health, finance and math — from BMI and loan installments to a full scientific calculator.

Converters

Converters for currencies, units and temperature, with up-to-date values and instant results.

Creators

Generators for passwords, QR codes and UUIDs, with customizable and secure options.

Image

Image tools to resize and compress pictures without losing visual quality, right in your browser.

Editors

Online editors for text, code and JSON, with formatting, validation and export options.

Colors

Color tools to pick colors, convert between formats and build harmonious palettes.

Date & Time

Date and time tools: world clock, date difference and timestamp conversion.

SEO & Marketing

SEO and marketing utilities such as word counter, slug generator and meta tag analyzer.

Streaming

Share your screen in high definition with built-in chat, over a direct browser-to-browser connection.

Frequently asked questions

Are all the tools free?

Yes. Every tool on Smartntools is completely free to use, with no sign-up and no usage limits.

Do I need to create an account?

No. You can use all tools right away without registering or providing any personal information.

Does my data stay private?

Most tools run entirely in your browser, so your input is processed on your device and not sent to or stored on a server.

Is Smartntools available in other languages?

Yes. The site and its tools are available in English, Portuguese, Spanish, French and German, each with its own URL.