Calculator Converter

Free tools that stay in your browser

Finance calculators, PDFs, images, text, and developer utilities. Nothing you type is uploaded.

  • 45 tools
  • 11 categories
  • No sign-up
  • Runs locally

Popular

SIP calculator

Estimate the future value of a monthly SIP from amount, return, and years.

EMI calculator

Work out the monthly EMI, total payment, and interest on a reducing-balance loan.

GST calculator

Add or remove GST and split it into CGST and SGST or IGST.

In-hand salary calculator

Estimate monthly take-home pay from CTC, PF, professional tax, and new-regime income tax.

Percentage calculator

Find a percent of a number, a share of a total, or a percent increase and decrease.

Merge PDF

Combine PDF files into one document, in the order you choose.

Compress image

Reduce an image’s file size with a quality setting and an optional max width.

QR code generator

Create a QR code for a link, plain text, or a UPI payment string.

Word counter

Count words, characters, sentences, and a rough reading time.

JSON formatter

Pretty-print or minify JSON and see the parse error if it is invalid.

India finance

SIP, EMI, GST, FD, salary, and tax estimates.

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SIP calculator

Estimate the future value of a monthly SIP from amount, return, and years.

EMI calculator

Work out the monthly EMI, total payment, and interest on a reducing-balance loan.

GST calculator

Add or remove GST and split it into CGST and SGST or IGST.

FD calculator

Estimate fixed-deposit maturity with quarterly or monthly compounding.

In-hand salary calculator

Estimate monthly take-home pay from CTC, PF, professional tax, and new-regime income tax.

Old vs new tax regime

Compare estimated income tax for FY 2026-27 under both regimes.

Calculators

Percentages, dates, BMI, interest, and margins.

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Percentage calculator

Find a percent of a number, a share of a total, or a percent increase and decrease.

Age calculator

Calculate age in years, months, and days from a date of birth.

BMI calculator

Calculate body mass index from height and weight, with WHO adult categories.

Discount calculator

See the sale price and the amount saved after a percent off.

Compound interest calculator

Project a lump sum with yearly, quarterly, or monthly compounding.

CAGR calculator

Find the compound annual growth rate between a start value and an end value.

Date difference calculator

Count the days, weeks, and weekdays between two dates.

Profit margin calculator

Turn cost and selling price into profit, margin, and markup.

PDF

Merge PDFs and turn images into one PDF.

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Merge PDF

Combine PDF files into one document, in the order you choose.

Images to PDF

Place JPG or PNG images onto A4 pages and download one PDF.

Image

Compress, resize, and convert images locally.

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Compress image

Reduce an image’s file size with a quality setting and an optional max width.

Resize image

Change an image’s width and height, with the aspect ratio locked if you want.

Convert image

Convert an image to JPG, PNG, or WEBP and download it.

Generators

QR codes, passwords, lorem text, and UUIDs.

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QR code generator

Create a QR code for a link, plain text, or a UPI payment string.

Password generator

Generate a random password with letters, numbers, and symbols.

Lorem ipsum generator

Generate placeholder paragraphs for a layout or draft.

UUID generator

Generate one or more random UUID version 4 identifiers.

Text

Counts, case, slugs, duplicates, and Base64.

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Word counter

Count words, characters, sentences, and a rough reading time.

Case converter

Switch text between upper, lower, title, sentence, camel, and kebab case.

Slug generator

Turn a title into a lowercase hyphenated URL slug.

Remove duplicate lines

Delete repeated lines while keeping the first copy of each one.

Base64 encode and decode

Encode text to Base64 or decode a Base64 string back to text.

Developer

JSON, URLs, JWTs, hashes, and regex.

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JSON formatter

Pretty-print or minify JSON and see the parse error if it is invalid.

URL encoder

Encode or decode a string for use in a query parameter.

JWT decoder

Read the header and payload of a JSON Web Token locally.

Hash generator

Compute SHA-256 or SHA-1 of text in the browser.

Regex tester

Try a JavaScript regular expression and list the matches.

Converters

Units, Unix time, colour, and number bases.

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Unit converter

Convert length, weight, temperature, and data size.

Unix timestamp converter

Convert Unix time in seconds to a local date, and back.

Colour converter

Convert a colour between HEX, RGB, and HSL, with a preview.

Number base converter

Convert integers between binary, octal, decimal, and hexadecimal.

Design

Contrast, gradients, and box shadows.

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Contrast checker

Check the WCAG contrast ratio of two colours.

CSS gradient generator

Build a two-colour linear gradient and copy the CSS.

Box shadow generator

Adjust a CSS box-shadow and copy the declaration.

SEO

Titles, UTM links, and robots.txt.

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Meta title and description length

Count characters in a title and meta description against common search limits.

UTM builder

Add utm_source, utm_medium, and utm_campaign to a URL.

Robots.txt generator

Draft a robots.txt that allows or blocks crawling of paths you list.

Business

Hourly rates and break-even units.

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Hourly rate calculator

Suggest a freelance hourly rate from income goal, expenses, and billable hours.

Break-even calculator

Find how many units you must sell to cover fixed costs.