Utilo - Free Online Tools
Utilo

Utilo – Online Tools in One Place

Generate passwords, create QR codes, convert base64, calculate dates, work with percentages, generate UUIDs, transform text, and much more. All free, directly in your browser.

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All tools (31 tools)

🔑

Password Generator

Generate strong and random passwords.

Development
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📅

Date Difference

Calculate the difference in days between two dates.

Dates & Time
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📊

Percentage Calculator

Calculate discounts and percentages.

Math
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📍

CEP Lookup

Look up address from Brazilian postal code (CEP).

Address
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🎂

Age Calculator

Calculate your exact age from birth date.

Dates & Time
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✏️

Text Transformer

Convert text to uppercase, lowercase, remove accents, or create slugs.

Text
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📄

Lorem Ipsum Generator

Generate Lorem Ipsum placeholder text.

Text
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🪪

CPF Generator

Generate valid Brazilian CPF numbers for testing.

Documents
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✅

CPF/CNPJ Validator

Validate Brazilian CPF and CNPJ numbers.

Documents
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⚖️

BMI Calculator

Calculate your Body Mass Index.

Health
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➗

Rule of Three

Solve proportion problems using the rule of three.

Math
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💱

Currency Converter

Convert values between different currencies.

Finance
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🔐

Base64 Converter

Encode and decode text in Base64.

Development
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⏱️

Time Calculator

Calculate additions and subtractions of hours and minutes.

Dates & Time
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📱

QR Code Generator

Generate QR codes for URLs, text, and more.

Utilities
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🧩

JSON Formatter

Format and validate JSON code.

Development
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🔁

XML ↔ JSON Converter

Convert between XML and JSON.

Development
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🔐

JWT Decoder

Decode JWT tokens.

Development
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🔒

Hash Generator

Generate MD5, SHA1, SHA256 hashes and more.

Development
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🔁

JSON ↔ CSV Converter

Convert between JSON and CSV.

Development
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💳

Test Card Generator

Generate credit card numbers for testing.

Development
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🔎

Regex Tester

Test regular expressions.

Development
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🆔

UUID Generator

Generate random UUID v4.

Development
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🧼

Code Minifier

Minify CSS, JavaScript, and HTML.

Development
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🎨

Color Converter

Convert between HEX, RGB, HSL, and more.

Development
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🔍

Text Diff

Compare differences between two texts.

Text
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📝

Markdown → HTML

Convert Markdown to HTML.

Development
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📈

Compound Interest

Calculate compound interest.

Finance
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🖼️

Image Compressor

Compress images online.

Utilities
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🔗

UTM Link Generator

Generate URLs with UTM parameters.

Marketing
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🔐

Password Strength Checker

Check your password strength.

Security
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About Utilo

Utilo is a collection of free online tools in English, designed for developers, students, professionals, and general users. You can generate test documents, calculate BMI, work with schedules, percentages, currencies, QR Codes, and much more, without installing anything.

Our goal is to centralize various utilities that are normally scattered across different sites. This way, you save time and keep your tasks simple and fast.