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30+ essential web tools,
right in your browser
Format JSON, convert colours, count words, generate passwords and more. Every tool runs locally on your device — nothing you paste is ever uploaded.
Text & Writing
Count, clean, convert and rewrite text.
Word Counter
Count words, characters, sentences, paragraphs and reading time as you type. Free, instant and completely private.
Case Converter
Convert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case and kebab-case instantly.
Lorem Ipsum Generator
Generate lorem ipsum placeholder text by paragraphs, sentences or words. Copy dummy text for mockups in one click.
Text Cleaner
Strip extra spaces, blank lines, line breaks, tabs and smart quotes from pasted text. Clean up copy from PDFs and emails.
Find & Replace
Find and replace text in bulk with optional regex, case sensitivity and whole-word matching. See the match count live.
Markdown to HTML
Convert Markdown to clean HTML with a live preview. Supports tables, code blocks, task lists and GitHub flavoured syntax.
Developer
Encode, format, minify and generate.
JSON Formatter
Format, validate and minify JSON with precise error messages showing the line and column of any syntax problem.
Base64 Encoder
Encode text to Base64 or decode Base64 back to text. Full Unicode support and URL-safe Base64 variants included.
URL Encoder
Percent-encode or decode URLs and query parameters. Choose component or full-URI encoding and inspect query strings.
HTML Minifier
Minify HTML by removing comments, collapsing whitespace and trimming attributes. See the exact bytes saved.
CSS Minifier
Minify CSS by stripping comments and whitespace and shortening values. Shows original size, minified size and savings.
UUID Generator
Generate cryptographically random version 4 UUIDs in bulk. Choose uppercase, hyphenless or braced formats and copy instantly.
Password Generator
Generate strong random passwords using the Web Crypto API. Control length and character sets and see a live strength estimate.
QR Code Generator
Create QR codes for links, text, Wi-Fi and email. Adjust size, colours and error correction, then download PNG or SVG.
Image to Base64
Convert PNG, JPG, SVG, WebP and GIF images to Base64 data URIs. Drag and drop, then copy as CSS, HTML or raw string.
Color & Design
Palettes, gradients, conversions and ratios.
CSS Gradient Generator
Build linear and radial CSS gradients visually with multiple colour stops, live preview and copy-ready CSS output.
Color Converter
Convert colours between HEX, RGB, HSL, HSV, CMYK and OKLCH with a live picker and copy-ready values in every format.
Color Palette Generator
Generate harmonious colour palettes using complementary, analogous, triadic and monochromatic rules. Lock colours and export.
Aspect Ratio Calculator
Calculate proportional width and height for any aspect ratio. Includes 16:9, 4:3, 1:1, 21:9 and custom ratio presets.
Calculators
Money, health and everyday percentages.
SIP Calculator
Calculate SIP returns with a step-up option, inflation-adjusted value and a year-by-year breakdown. Free, instant and private.
Percentage Calculator
Calculate percentages, percentage increase and decrease, and what percent one number is of another. Four calculators in one.
Compound Interest Calculator
Project investment growth with compound interest and regular contributions. See a year-by-year breakdown of principal and interest.
Salary Converter
Convert pay between hourly, daily, weekly, monthly and annual figures based on your real working hours and holiday.
Sales Tax Calculator
Add sales tax, VAT or GST to a price, or work backwards to find the pre-tax amount from a total. Shows the tax portion.
BMI Calculator
Calculate Body Mass Index in metric or imperial units, see your WHO category on a visual scale and your healthy weight range.
Time & Productivity
Timestamps, timers and date math.
Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and back. Supports seconds and milliseconds, UTC, local time and ISO 8601.
Days Between Dates
Calculate the exact number of days, weeks, months and years between two dates, with an option to count business days only.
Timezone Converter
Convert a time across multiple time zones at once. Handles daylight saving automatically and shows the UTC offset for each.
Stopwatch
A precise online stopwatch with lap times, keyboard shortcuts and millisecond accuracy. No download or sign-up needed.
Pomodoro Timer
A Pomodoro timer with customisable focus and break lengths, automatic long breaks, session tracking and an audio alert.
Random Number Generator
Generate random numbers in any range using the Web Crypto API. Generate in bulk, with or without duplicates.
Trending guides
In-depth reads that go beyond the calculator.
- Trending6 min read
SIP Calculator guide
A Systematic Investment Plan is a standing instruction to put a fixed amount into a mutual fund on the same date each month. That is the whole idea. It is not a product you buy, not an asset class, and not a scheme with a guaranteed rate — it is a schedule. The returns come from whatever the underlying fund holds.
- 3 min read
BMI Calculator guide
Body Mass Index is weight in kilograms divided by height in metres squared. That is the whole calculation. It was devised in the 1830s by the Belgian statistician Adolphe Quetelet, who was explicitly describing populations rather than assessing individuals — a distinction that matters enormously and gets lost constantly.
- 3 min read
Percentage Calculator guide
Almost every percentage problem is one of four shapes. Knowing which one you are looking at is most of the work, because each has a different formula and mixing them up is where the wrong answers come from.