⚡ Fast, secure, and 100% free

Professional Online Tools for Everyone

Developer tools, financial calculators, health trackers, and unit converters — all in one place.

JSON/XML formatters • EMI & SIP calculators • BMI tracker • Unit converters • No registration • 100% free

No Sign-up Required
100% Free Forever
Privacy Respected
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✨ Newly Added Tools

Check out our latest calculators and converters

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Base64 Encoder/Decoder

Encode and decode Base64 text and files online. Supports Unicode, URL-safe Base64, and file download. Free, private, and runs entirely in your browser.

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HTML Encoder/Decoder

Encode and decode HTML entities online. Safely escape HTML for display or attributes and decode back. Free, private, and runs entirely in your browser.

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URL Encoder/Decoder

Encode and decode URLs and query strings online. Supports encodeURIComponent, space as plus, and Unicode. Free, private, and runs entirely in your browser.

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MD5 Encrypt/Decrypt

Generate MD5 hashes and verify text or files against MD5 checksums online. Fast, private, in-browser MD5 hash generator and verifier for developers.

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Split Text

Split text by delimiter or newline. Remove empties, trim parts, and export lines.

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Join Text

Join lines with a custom delimiter. Trim lines and ignore blank lines.

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Trim Text

Remove leading and trailing whitespace from text. Trim individual lines.

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Remove Empty Lines

Remove blank lines from text. Keep or trim remaining lines.

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Remove All Whitespaces

Remove all spaces, tabs, and whitespace characters. Preserve newlines optionally.

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Space to Newline

Convert spaces and whitespace to newlines. Useful for reformatting text.

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Newlines to Spaces

Convert newlines to spaces. Join lines into a single line.

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Add Line Numbers

Add line numbers to each line. Customize numbering format and separator.

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Uppercase Converter

Convert text to uppercase instantly. Process entire text or line by line.

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Lowercase Converter

Convert text to lowercase instantly. Process entire text or line by line.

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Invert Case Converter

Swap uppercase and lowercase letters instantly. Process entire text or line by line.

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Title Case Converter

Convert text to title case - capitalize first letter of each word.

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Sentence Case Converter

Convert text to sentence case - capitalize only the first letter.

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Randomize Case Converter

Randomize text case - randomly convert letters to uppercase or lowercase.

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Loan Calculator

Calculate monthly payments, total interest, and amortization schedule for any loan amount.

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Mortgage Calculator

Calculate home loan payments with taxes, insurance, and PMI. Compare different mortgage scenarios.

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Retirement Calculator

Plan your retirement savings and estimate how much you need to retire comfortably.

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Why Choose Our Tools

All-in-One Toolkit

Developer tools (JSON/XML formatters), financial calculators (EMI, SIP), health trackers (BMI), and unit converters all in one place.

100% Private & Secure

All processing happens in your browser. No data sent to servers. Your files and calculations stay completely private and secure.

Always Free

No sign-up, no credit card, no limits. Professional-grade tools completely free forever. Unlimited calculations and conversions.

Online Free Tools is your comprehensive toolkit for everyday needs. From developer tools like JSON/XML formatters and comparison tools, to financial calculators for EMI and SIP planning, health trackers for BMI monitoring, and versatile unit converters — we've got you covered.

Built with privacy and performance in mind, all processing happens locally in your browser. No registration, no data collection, no hassle. Just professional tools that work instantly and respect your privacy.

How to Use Our Tools

Getting started with our online tools is simple and straightforward. Follow these easy steps to perform any calculation.

1

Select Your Tool

Browse our collection and choose the calculator or converter you need from the tools section.

2

Enter Your Values

Input your numbers or select options in the provided fields. All fields are clearly labeled for easy understanding.

3

Get Instant Results

Click calculate or convert, and get your results immediately. No waiting, no processing delays.

4

Use or Share Results

Use the results for your planning or decision-making. You can perform multiple calculations as needed.

Frequently Asked Questions

Find answers to common questions about our online tools and services.

Are these tools really free to use?

Yes, absolutely! All our calculators and converters are 100% free to use with no hidden charges, subscriptions, or premium features. You can perform unlimited calculations without any cost.

Do I need to register or create an account?

No registration is required. Simply visit any tool page and start calculating immediately. We believe in providing instant access to our services without any barriers.

How accurate are the calculations?

Our calculators use standard mathematical formulas and algorithms that are widely accepted and accurate. For financial calculations like EMI, we use the industry-standard formulas used by banks and financial institutions.

Can I use these tools on my mobile device?

Yes! All our tools are fully responsive and work perfectly on smartphones, tablets, and desktop computers. The interface automatically adapts to your screen size for the best user experience.

Do you store my calculation data?

No, we do not store any of your calculation inputs or results. All calculations are performed in your browser, ensuring complete privacy. Your data never leaves your device.

Will you add more tools in the future?

Yes! We continuously work on adding new calculators and converters based on user needs and feedback. Check back regularly to discover new tools that can help with your daily calculations.

Can I suggest a new tool or feature?

We welcome suggestions! If you have ideas for new tools or improvements to existing ones, please reach out through our contact page. We value user feedback and continuously improve our services.

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