Age Calculator
Calculate age in years, months and days from a date of birth.
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100% Free • No Signup • Fast & Easy
Smart Tools for Everyday Tasks
Edit, convert, generate, and solve — all in one place.
Free online tools to make your work simple, fast, and productive.
✓ Works in your browser✓ No software to install✓ Mobile friendly
CalculatorsSolve everyday calculations instantly.10+ ToolsDesign ToolsPick, inspect and work with design values.7+ ToolsDeveloper ToolsEncode, decode, format and generate.16+ ToolsGeneratorsCreate useful random data and outputs.20+ ToolsImage ToolsResize, compress, convert and edit images.10+ ToolsOther ToolsUseful browser-based utilities for everyday tasks.13+ ToolsPDF ToolsConvert, merge, split and edit PDFs.12+ ToolsSecurityProtect, generate and work with secure data.9+ ToolsText ToolsTransform, format and analyze text.12+ Tools
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Fast & ReliableGet results in seconds
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100% FreeNo signup required
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User FriendlySimple and clean interface
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All-in-One109+ useful tools
POPULAR TOOLS
View all tools →Start with a useful tool
Focused utilities for common image, text, developer and everyday tasks.
Base64 File Encoder
Use this developer utility directly in your browser.
Open tool →Base64 Tool
Encode or decode data instantly in your browser.
Open tool →Base64url Tool
Process URLs quickly with this free browser-based utility.
Open tool →Basic Auth Generator
Generate useful output instantly with this free browser tool.
Open tool →Bmi Calculator
Calculate everyday values instantly in your browser.
Open tool →Case Converter
Convert text between uppercase, lowercase, sentence and title case.
Open tool →Code Beautifier
Use this developer utility directly in your browser.
Open tool →FROM THE BLOG
View all articles →Latest articles
Practical guides, tips and ideas for everyday digital work.
When To Use Jpg Png Or Webp Images
Useful tips and straightforward guidance from SmartToolz.
Read article →Qr Code Guide What To Encode And How To Use It
Useful tips and straightforward guidance from SmartToolz.
Read article →Qr Code Best Practices For Links Menus And Sharing
Useful tips and straightforward guidance from SmartToolz.
Read article →WHY SMARTTOOLZ
Useful tools without the clutter.
Each utility is designed around one clear task, with straightforward controls and practical guidance.
Simple by design
Important controls stay visible so you can move from input to result without learning a complicated dashboard.
Made for everyday work
Use quick utilities while studying, creating content, building websites or preparing digital files.
Easy to discover
Consistent categories and page layouts make related tools easier to find when the next task comes up.
LEARN BEFORE YOU USE
Free online tools for real-world digital tasks
People often need a small utility at exactly the moment a larger application feels unnecessary. A student may need a word count, a developer may need a JSON formatter, a designer may need a color value, or a website owner may need to reduce an image before uploading it. SmartToolz keeps these practical tasks together while giving each tool its own focused workflow and helpful explanation.
Work & study
Count, clean and transform text, calculate values and prepare common files quickly.
Web & development
Format structured data, encode URLs, generate useful strings and simplify repetitive tasks.
Images & documents
Compress, resize and convert images and handle common PDF workflows in the browser.
FAQ
Frequently asked questions
Are SmartToolz tools free?
The public SmartToolz collection is designed as free online utilities. Individual tools may have their own browser or technical limits.
Do I need to install software?
Most tools are designed to work directly in a modern browser, so everyday jobs can be handled without a separate desktop application.
Can I use SmartToolz on a phone?
Yes. The layouts are responsive so the site can be used across desktop and mobile screens.