Featured tools
A hand-picked starting point: the calculators and utilities most useful for everyday jobs.
- Money and tax
EMI Calculator
Work out the monthly EMI for a home, car or personal loan, with total interest and a year-by-year repayment schedule.
₹10,00,000 · 8.5% · 20 years→EMI ₹8,678 - Design and images
QR Code Generator
Turn any link or text into a QR code and download it as a PNG, with no sign-up and no tracking.
https://mrhimanshu.com→QR code (PNG) - Security and encoding
Password Generator
Strong, random passwords from your browser's cryptographic random source. Nothing leaves your device.
length 16→•••••••••••••••• - Developer tools
JSON Formatter
Validate, pretty-print and minify JSON, with a clear error message when something is wrong.
{"a":1,"b":[2,3]}→formatted with indentation - Writing and text
Word Counter
Count words, characters, sentences and paragraphs, and estimate reading time as you type.
Hello brave new world→4 words · 21 characters - Design and images
Image Compressor
Shrink JPG, PNG and WebP images in your browser. Choose the quality and size, then download the result.
photo.jpg 2.4 MB→photo.webp 310 KB
Money and tax
Loans, savings, GST and income tax: the numbers people check before they decide.
EMI Calculator
Work out the monthly EMI for a home, car or personal loan, with total interest and a year-by-year repayment schedule.
₹10,00,000 · 8.5% · 20 years→EMI ₹8,678GST Calculator
Add GST to a price or take it out of a GST-inclusive price, with the CGST, SGST or IGST split.
₹1,000 + 18% GST→₹1,180 (CGST ₹90 + SGST ₹90)Income Tax Calculator (India)
Estimate and compare your income tax under the new and old regimes for FY 2026-27 (same rules as FY 2025-26), with rebate, surcharge and cess.
₹15,00,000 salary→New ₹97,500 · Old ₹2,10,600SIP Calculator
Estimate what a monthly SIP could grow to, with an optional yearly step-up and a year-by-year table.
₹10,000/month · 12% · 10 years→≈ ₹23,23,391FD & RD Calculator
Maturity value and interest for a fixed deposit or a recurring deposit, with FD payout options.
₹1,00,000 FD · 7% · 12 months→₹1,07,186Compound Interest Calculator
See how a lump sum grows with yearly, quarterly, monthly or daily compounding, compared with simple interest.
₹1,00,000 · 10% · 5 years→₹1,61,051 (yearly)Discount & Profit Margin Calculator
Work out the price after one or two discounts, or your profit, margin and markup, and the price you need for a target margin.
₹2,499 − 20% − 10%→₹1,799.28 (28% off)
Everyday maths
Percentages, dates, units and numbers in words, for the small jobs that come up all the time.
Age & Date Difference Calculator
Find your exact age in years, months and days, the days to your next birthday, or the days and working days between any two dates.
15 Aug 2000 → 16 Oct 2026→26 years, 2 months, 1 dayPercentage Calculator
Work out a percentage of a number, what percent one number is of another, percentage change, and add or remove a percentage.
15% of 200→30Unit Converter
Convert length, weight, temperature and volume between metric and imperial units instantly.
10 km→6.2137 miNumber to Words Converter
Write any number in words in the Indian (lakh, crore) or international (million, billion) system, including rupees and paise for cheques.
12,34,567.50→Twelve lakh thirty-four thousand five hundred sixty-seven rupees and fifty paise only
Health
A quick, private check you can run without signing up.
Writing and text
Count, convert, compare and clean text.
Word Counter
Count words, characters, sentences and paragraphs, and estimate reading time as you type.
Hello brave new world→4 words · 21 charactersCase Converter
Convert text to UPPER, lower, Title, Sentence, camelCase, snake_case, kebab-case and more in one click.
hello world again→helloWorldAgainLorem Ipsum Generator
Generate placeholder paragraphs, sentences or words for designs and mock-ups.
2 paragraphs→Lorem ipsum dolor sit amet…Text Diff Checker
Compare two pieces of text and see exactly what was added or removed, by line or by word.
cat → cut→- cat + cutMarkdown Viewer
Free Markdown live preview and viewer. Write or paste Markdown and see headings, tables, task lists and code render instantly.
# Hello→<h1>Hello</h1>Invisible Character Cleaner
Find and remove hidden Unicode characters, such as zero-width spaces and odd spacing, that sneak into copied text.
helloworld→helloworld
Design and images
Make QR codes, shrink images and pick colours.
QR Code Generator
Turn any link or text into a QR code and download it as a PNG, with no sign-up and no tracking.
https://mrhimanshu.com→QR code (PNG)Image Compressor
Shrink JPG, PNG and WebP images in your browser. Choose the quality and size, then download the result.
photo.jpg 2.4 MB→photo.webp 310 KBImage Color Picker
Open an image, click any pixel to read its HEX and RGB value, and get the dominant palette.
photo.jpg→#202420 #d5ef78 #f5d9df
Developer tools
Format, test and convert the data developers deal with every day.
JSON Formatter
Validate, pretty-print and minify JSON, with a clear error message when something is wrong.
{"a":1,"b":[2,3]}→formatted with indentationRegex Tester
Test JavaScript regular expressions against sample text with live match highlighting and capture groups.
/\d+/g on a1b22→matches: 1, 22UUID Generator
Generate random version 4 UUIDs in bulk, ready to copy.
uuid v4→3b241101-e2bb-4255-8caf-4136c566a962Unix Timestamp Converter
Convert Unix timestamps to readable dates and dates back to timestamps, in your time zone and UTC.
1700000000→2023-11-14T22:13:20ZURL Encoder & Decoder
Percent-encode text for safe use in URLs, or decode an encoded URL back to readable text.
a b&c=d→a%20b%26c%3DdHTML Viewer
Edit HTML and preview it live in an isolated sandbox that cannot touch the page around it.
<b>bold</b>→bold (rendered in a sandbox)
Security and encoding
Strong passwords, hashes and encodings, generated on your device.