Free Online Tools for Everyday Tasks
Calculate, convert, format and solve everyday tasks instantly with fast, simple and free online tools.
Calculators
Percentages, ages, discounts, BMI and tips.
5 tools02Converters
Length, weight, temperature, area, speed and data.
6 tools03Text Tools
Count, clean and change the case of text.
5 tools04Developer Tools
JSON, Base64 and UUIDs in the browser.
3 tools05Finance Tools
Salary, compound interest and margins.
3 tools06Date & Time
Unix timestamps and date conversions.
1 tool07Web Tools
URL encoding and colour conversion.
2 toolsAll 25 tools in one placeBrowse everythingPopular tools
Percentage Calculator
Find X% of Y, what percent one number is of another, and percentage change.
Open toolAge Calculator
Exact age in years, months and days between two dates.
Open toolDiscount Calculator
Sale price and savings from an original price and a discount.
Open toolBMI Calculator
Body mass index from height and weight, metric or imperial.
Open toolTip Calculator
Tip, total and per-person split for a restaurant bill.
Open toolProfit Margin Calculator
Profit, margin and markup from cost and revenue.
Open toolSalary Calculator
Convert pay between annual, monthly, weekly and hourly.
Open toolCompound Interest Calculator
Growth of savings with compounding and regular contributions.
Open toolLength Converter
Metres, feet, inches, miles and more, converted at once.
Open toolWeight Converter
mg, g, kg, ounces, pounds, stone and tons.
Open toolTemperature Converter
Celsius, Fahrenheit and Kelvin.
Open toolArea Converter
Square metres, square feet, acres, hectares and more.
Open toolSpeed Converter
km/h, mph, m/s, knots and ft/s.
Open toolData Storage Converter
Bits and bytes through petabytes, decimal and binary.
Open toolWord Counter
Words, characters, sentences, paragraphs and reading time.
Open toolCharacter Counter
Characters with and without spaces, with optional limits.
Open toolCase Converter
UPPERCASE, lowercase, Title Case, Sentence case and more.
Open toolDuplicate Line Remover
Remove repeated lines while keeping the original order.
Open toolText Cleaner
Strip extra spaces, blank lines and stray whitespace.
Open toolJSON Formatter
Format, minify and validate JSON with error locations.
Open toolBase64 Encoder/Decoder
Encode text to Base64 or decode it back, UTF-8 safe.
Open toolUUID Generator
Generate one or many random version 4 UUIDs.
Open toolUnix Timestamp Converter
Convert Unix timestamps to dates and dates to timestamps.
Open toolURL Encoder/Decoder
Percent-encode or decode URLs and query strings.
Open toolColor Converter
Convert colours between HEX, RGB and HSL.
Open toolWhy use ClickWebTools?
Fast
Pages load small scripts for one tool at a time. Results update as you type, with no page reloads.
Free
Every tool is free to use. The site is supported by advertising, kept away from the tools themselves.
Easy to use
Clear labels, sensible defaults and plain-language error messages. Each page explains the formula it uses.
Mobile friendly
Layouts reflow down to 320px wide, with touch-sized controls and the right keyboard for each field.
Privacy focused
Calculators, converters, text and developer tools run in your browser. What you type is not sent to our server.
No registration
No account, no email, no sign-in wall. Open a tool and use it.
Featured tools
JSON Formatter
Paste broken JSON and see the exact line and column where parsing stops. Format, minify and download in one place.
Open JSON FormatterWord Counter
Words, characters, sentences, paragraphs and reading time, counted locally as you type.
Open Word CounterPercentage change vs percentage points
Why a rate moving from 4% to 5% is a 25% increase, and when to say “one point”.
Read articleMargin and markup are not the same number
Two ways to describe profit on a sale, with worked examples for pricing.
Read articleFive common JSON errors and how to read them
Trailing commas, single quotes and other mistakes, with the messages browsers show.
Read articleWhat is ClickWebTools?
ClickWebTools is a collection of free online tools for quick, everyday tasks: working out a percentage, converting a measurement, counting the words in an essay or tidying a block of JSON.
It is built for students, office workers, developers and anyone who needs a reliable answer without installing software or creating an account. Each tool page explains the formula it uses, with worked examples, so you can check a result yourself.
Frequently asked questions
Are the tools free?
Yes. Every tool is free and needs no account. The site is funded by advertising.
Is my data sent to your server?
Calculators, converters, text and developer tools run in your browser, so the values and text you enter are not sent to our server. We use analytics to count page views and tool usage, without the content you enter.
How accurate are the results?
Calculations use full precision and are rounded only for display. Unit conversions use exact international definitions. Health and finance tools give estimates, not professional advice.
Can I suggest a new tool?
Yes. Send a suggestion through the contact page; requests help decide what gets built next.
Your numbers and text stay on your device.
Calculators, converters, text and developer tools all run in your browser. Nothing you type is uploaded.
Browse all tools