118 free tools · no sign-up · nothing uploaded

Every tool you keep googling for.

Calculators, converters, PDF and image tools, text utilities and more - fast, free and private. Everything runs in your browser, so nothing you enter ever leaves your device.

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Calculators

20 tools

Percentage Calculator

Free percentage calculator. Find X% of a number, what percent one number is of another, and percentage increase or decrease - with the working shown.

BMI Calculator

Calculate your BMI from height and weight in metric or imperial units. See your category on the standard scale and what the number actually means.

Age Calculator

Work out an exact age from a date of birth: years, months, days, total days lived and a countdown to the next birthday.

Mortgage Calculator

Estimate monthly mortgage repayments from loan amount, interest rate and term. See total interest paid and a year-by-year balance breakdown.

Loan Calculator

Calculate monthly payments, total repayment and total interest for personal loans, car loans and more. Adjust amount, rate and term instantly.

Compound Interest

See how savings or investments grow with compound interest. Set a starting balance, monthly contributions, rate and time - view the growth year by year.

Tip Calculator

Work out the tip and total bill instantly, and split it between any number of people. Common tip percentages one tap away.

VAT Calculator

Add VAT to a net price or remove VAT from a gross price at 20%, 5% or any custom rate. Shows the VAT amount and the calculation used.

Discount Calculator

Find the final price after a discount and exactly how much you save. Handles percentage off, fixed amounts off and stacked discounts.

Salary Converter

Convert between hourly rate, weekly, monthly and annual salary based on your working hours. Enter any one figure and see all the others.

Date Calculator

Count the days, weeks and months between two dates, or add and subtract days from any date. Includes working-days-only mode.

Time Calculator

Add and subtract hours, minutes and seconds, or find the duration between two times. Ideal for timesheets, editing and cooking.

Fraction Calculator

Add, subtract, multiply and divide fractions with the answer shown fully simplified, as a mixed number and as a decimal - with steps.

Calorie Calculator

Estimate your daily calorie needs from age, height, weight and activity level using the Mifflin-St Jeor formula. Targets for maintaining, losing and gaining.

Fuel Cost Calculator

Work out how much a journey costs in fuel from distance, fuel economy and price per litre or gallon. Split the cost between passengers.

Scientific Calculator

Free online scientific calculator with trig, logarithms, powers, roots and parentheses. Full keyboard support and a running history of your calculations.

Time Card Calculator

Add up your weekly work hours from clock-in, clock-out and break times. Calculates regular and overtime hours plus gross pay from your hourly rate.

Body Fat Calculator

Estimate your body fat percentage from tape measurements using the US Navy method, with category ranges for men and women and metric or imperial units.

GPA Calculator

Calculate your GPA from letter grades and credit hours on the standard 4.0 scale, with optional weighting for Honors and AP classes.

Aspect Ratio Calculator

Calculate missing width or height while keeping aspect ratio. Common presets like 16:9, 4:3 and 1:1, plus ratio detection from any dimensions.

Converters

14 tools

Unit Converter

Convert between metric and imperial units for length, weight, temperature, speed, area, volume and data - all in one fast converter.

Length Converter

Convert lengths instantly: centimeters to inches, feet to meters, miles to kilometers and every other combination, with a handy reference table.

Weight Converter

Convert weight between kilograms, pounds, stone, ounces and grams. Includes the kg-to-lbs quick table and stone-and-pounds format.

Temperature Converter

Convert between Celsius, Fahrenheit and Kelvin instantly, with the formula shown and a reference table of common temperatures.

Speed Converter

Convert speed between miles per hour, kilometers per hour, meters per second and knots - with running and cycling pace equivalents.

Area Converter

Convert area between square meters, square feet, acres, hectares and square kilometers. Useful for property, land and DIY.

Volume Converter

Convert volume between liters, US and UK gallons, cups, pints, fluid ounces and milliliters. Includes cooking measurement quick reference.

Data Size Converter

Convert between bits, bytes, KB, MB, GB and TB in both decimal (1000) and binary (1024) standards - and see why they differ.

Currency Converter

Convert between 30+ major currencies using daily exchange rates from the European Central Bank. Fast, free and no sign-up.

Roman Numerals

Convert numbers to Roman numerals and Roman numerals back to numbers, with a breakdown of how each numeral is built.

Number to Words

Convert any number into written English words - great for cheques, legal documents and invoices. Supports decimals and currency format.

Binary Converter

Convert numbers between binary, decimal, hexadecimal and octal, plus text to binary and back. Every base updates live as you type.

Time Zone Converter

Convert a time between any two time zones and compare multiple cities at once. Handles daylight saving automatically.

Military Time

Convert military (24-hour) time to regular 12-hour AM/PM time and back instantly, with the full 24-hour reference chart and how to say each time aloud.

Text Tools

12 tools

Fancy Text Generator

Turn plain text into bold, italic, script, gothic, bubble and other fancy Unicode styles you can paste into Instagram, TikTok, X and Discord bios.

Morse Code Translator

Translate text to International Morse code and Morse back to text, then play it as audio at your chosen speed. Includes the full Morse alphabet chart.

Word Counter

Count words, characters, sentences and paragraphs as you type, with estimated reading and speaking time and keyword density.

Character Counter

Count characters with and without spaces as you type, with live limits for X/Twitter, Instagram, SMS and meta descriptions.

Case Converter

Convert text to uppercase, lowercase, title case, sentence case, camelCase, snake_case and kebab-case in one click.

Lorem Ipsum Generator

Generate lorem ipsum placeholder text by paragraphs, sentences or words. Copy clean output for mockups, designs and layouts.

Text Diff Checker

Compare two blocks of text and see every insertion and deletion highlighted, by word or by line. All comparison happens in your browser.

Remove Line Breaks

Strip unwanted line breaks from pasted text - keep paragraphs or join everything into one line. Perfect for text copied from PDFs and emails.

Remove Duplicates

Paste a list and remove duplicate lines in one click, with options for case sensitivity, trimming and keeping first or last occurrence.

Alphabetizer

Sort any list alphabetically A-Z or Z-A, by length, numerically or randomly. Handles commas or line breaks and ignores articles if you want.

Reverse Text

Reverse text character by character, reverse word order, or flip lines. Also makes upside-down text you can paste anywhere.

Find & Replace

Find and replace text in any document instantly, with match case, whole word and full regular expression support. Nothing is uploaded.

Developer Tools

35 tools

JSON Formatter

Format, validate and minify JSON with syntax highlighting and clear error messages showing exactly where invalid JSON breaks.

Base64 Encode/Decode

Encode text or files to Base64 and decode Base64 back, with full Unicode support and URL-safe mode. Runs entirely in your browser.

URL Encode/Decode

Encode text for safe use in URLs or decode percent-encoded strings, with component and full-URL modes and a reference of common encodings.

HTML Encode/Decode

Convert special characters to HTML entities and decode entities back to text. Essential for displaying code and user input in web pages.

JWT Decoder

Paste a JWT to see its decoded header and payload with human-readable timestamps. Decoding happens locally - your token never leaves the page.

UUID Generator

Generate cryptographically random UUID v4 identifiers, one at a time or in bulk, with uppercase, hyphenless and quoted formats.

Hash Generator

Generate MD5, SHA-1, SHA-256 and SHA-512 hashes from text or files, computed locally in your browser using the Web Crypto API.

Regex Tester

Test regular expressions against sample text with live match highlighting, capture groups, flags and a quick-reference cheat sheet.

Unix Timestamp

Convert Unix timestamps to human-readable dates and dates back to epoch seconds or milliseconds, in your time zone and UTC, with a live clock.

CSS Minifier

Minify CSS to shrink file size or beautify minified CSS to make it readable again - with size savings shown. Works entirely offline.

Markdown to HTML

Write or paste Markdown and get clean HTML with a live rendered preview. Supports tables, code blocks and GitHub-flavored syntax.

JSON to CSV

Convert JSON arrays to CSV instantly in your browser, with nested objects flattened to dot-notation columns and proper RFC 4180 quoting. Download or copy.

CSV to JSON

Convert CSV data to JSON in your browser. Handles quoted fields and embedded commas correctly, detects numbers and booleans, and downloads clean JSON.

SQL Formatter

Format messy SQL into readable, consistently indented queries. Supports PostgreSQL, MySQL, SQLite, T-SQL and BigQuery dialects, plus a minify mode.

Cron Generator

Build cron expressions with dropdowns, or paste one to see it explained in plain English with its next five run times. No more guessing the field order.

PX to REM

Convert px to rem and rem to px instantly against any root font size, with a reference table of common values for CSS and Tailwind work.

XML Formatter

Format messy XML with proper indentation, validate it with clear error messages, or minify it for production - all locally in your browser.

XML to JSON

Convert XML documents to clean JSON in your browser, with attribute handling options and pretty-printed output you can copy or download.

JSON to YAML

Convert JSON to clean, readable YAML instantly in your browser. Ideal for Kubernetes manifests, CI configs and OpenAPI specs.

YAML to JSON

Convert YAML to JSON and validate it at the same time - clear error messages with line numbers when the YAML is malformed. Runs in your browser.

JavaScript Minifier

Minify JavaScript with real compression and mangling (powered by Terser) or beautify minified code back to readable form. Shows exact size savings.

HTML Formatter

Tidy up messy HTML with consistent indentation or minify it for production, with size savings shown. Everything runs locally in your browser.

HTML to Markdown

Convert HTML to clean Markdown - headings, lists, links, tables and code blocks all preserved. Paste rich text or raw HTML and copy the result.

Markdown Table Generator

Build Markdown tables in a visual editor - add rows and columns, set alignment, paste from a spreadsheet - and copy perfectly formatted Markdown.

What Is My IP

See your public IP address instantly, with IPv4 and IPv6 shown separately and a plain-English explanation of what your IP reveals about you.

What Is My User Agent

See your browser user agent string instantly, with the browser, version, engine and operating system parsed out and explained.

DNS Lookup

Look up DNS records for any domain: A, AAAA, MX, TXT, CNAME, NS and more, resolved over encrypted DNS with response times shown.

Subnet Calculator

Calculate network address, broadcast, host range and usable hosts from any IPv4 address and CIDR prefix or netmask - with the binary breakdown shown.

Bcrypt Generator

Generate bcrypt password hashes with your chosen cost factor and verify passwords against existing hashes - computed locally, nothing sent anywhere.

JWT Generator

Create signed JWTs for testing: edit the payload, set expiry, sign with your secret using HS256 via the Web Crypto API - entirely in your browser.

Chmod Calculator

Convert Linux file permissions between checkboxes, octal (755) and symbolic (rwxr-xr-x) notation instantly, with common permission presets explained.

URL Parser

Paste a URL and see every part broken out: protocol, host, port, path, query parameters in a table, and fragment - with one-click decoding.

Curl Converter

Paste a curl command and get working code: JavaScript fetch, Python requests or Node axios - headers, body, method and auth all carried over.

Meta Tag Generator

Generate every meta tag your page needs: title, description, canonical, Open Graph and Twitter cards - with live SERP and social share previews.

Slug Generator

Turn any title into a clean, lowercase, hyphenated URL slug. Handles accents, symbols and stop words, with custom separator options.

Generators

9 tools

Password Generator

Generate strong random passwords with custom length and character sets, or memorable passphrases. Created locally - nothing is ever sent anywhere.

QR Code Generator

Create QR codes for links, Wi-Fi, text, email and phone numbers. Download as PNG or SVG in any size - free, private and watermark-free.

Random Number

Generate random numbers in any range, one or many at a time, with or without duplicates. Uses cryptographic randomness for fair results.

Coin Flip

Flip a virtual coin and get a truly random heads or tails, with a running tally and multi-flip mode for quick decisions.

Dice Roller

Roll virtual dice: d4, d6, d8, d10, d12, d20 and d100, single or multiple, with totals and roll history. Ideal for board games and D&D.

Invoice Generator

Create a professional PDF invoice in minutes: your details, line items, tax and totals calculated automatically. Free, no account, nothing uploaded.

Barcode Generator

Generate scannable barcodes in CODE128, EAN-13, UPC-A, CODE39 and ITF formats with automatic check digits. Download as PNG or SVG - free, no watermark.

Wheel Spinner

Add names or options to a colorful wheel and spin it for a fair random winner. Great for giveaways, classrooms and deciding where to eat.

Random Picker

Paste a list of names or items and pick one (or several) completely at random. Great for giveaways, raffles and classroom picks.

Color & Design

6 tools

Color Picker

Pick any color and get its HEX, RGB, HSL and CSS values instantly, with shades, tints and complementary colors to build a palette.

HEX to RGB

Convert HEX color codes to RGB values and back, with live preview, HSL output and copy-ready CSS. Supports shorthand and alpha values.

Contrast Checker

Check the contrast ratio between text and background colors against WCAG AA and AAA standards, with live preview and fix suggestions.

Gradient Generator

Build beautiful linear and radial CSS gradients visually, with angle control, multiple color stops and copy-ready CSS code.

Box Shadow Generator

Design CSS box shadows visually: offset, blur, spread, color and opacity with live preview, layered shadows and copy-ready CSS.

Shade Generator

Generate a full scale of shades and tints from any base color - a ready-made 50-900 palette with copyable HEX values for design systems.

Image Tools

6 tools

Image Resizer

Resize images to exact pixels or percentages right in your browser. Keep aspect ratio, choose quality and download instantly - no upload.

Image Compressor

Compress images to a fraction of their size with a quality slider and live before/after preview. Everything happens locally - nothing is uploaded.

Image Converter

Convert images between PNG, JPG and WebP formats instantly and privately in your browser, with quality control and batch support.

Image to Base64

Convert any image to a Base64 data URI with ready-to-paste HTML img tag and CSS snippets. Converted locally, never uploaded.

SVG to PNG

Convert SVG files or pasted SVG code to PNG at any resolution - 1x to 4x or exact pixel dimensions. Rendered locally, never uploaded.

Favicon Generator

Turn any image into a complete favicon set - 16px to 512px PNGs plus Apple touch icon - with the HTML tags to paste into your site.

PDF Tools

11 tools

Merge PDF

Combine multiple PDFs into one file in seconds. Reorder with drag and drop. 100% private - files are merged in your browser, never uploaded.

Split PDF

Split a PDF into separate files or extract specific pages and ranges. Processing happens locally in your browser - files never leave your device.

JPG to PDF

Convert JPG, PNG and WebP images into a single PDF with page size and orientation options. Converted locally - no upload, no watermark.

PDF to JPG

Convert every page of a PDF into high-quality JPG or PNG images, rendered locally in your browser. Choose resolution and download all pages.

Rotate PDF

Rotate all pages or individual pages of a PDF by 90, 180 or 270 degrees and save the fixed file. Rotation happens locally in your browser.

Delete PDF Pages

Remove unwanted pages from a PDF with a visual page picker and download the cleaned file. Fully private - edited in your browser.

PDF to Word

Convert a PDF to an editable Word document in your browser. Extracts your text and paragraphs into a real .docx file - free, no upload, no watermark.

PDF to Text

Pull every line of text out of a PDF and copy or download it as a .txt file. Extraction happens locally in your browser - nothing is uploaded.

Word to PDF

Turn a Word document (.docx) into a PDF without uploading it anywhere. Renders your document locally and saves it as PDF via your browser.

Compress PDF

Shrink a PDF by re-rendering its pages at the quality you choose, right in your browser. See the size saving before you download - no upload, no limits.

Sign PDF

Draw or type a signature and place it anywhere on your PDF, then download the signed file. Signing happens locally - your document never leaves your device.

Time & Productivity

5 tools

Stopwatch

Simple, accurate online stopwatch with lap times, keyboard shortcuts and millisecond precision. Keeps running even in a background tab.

Countdown Timer

Set a countdown timer for any duration with a clear full-screen display and audible alarm. Quick presets for common times.

Pomodoro Timer

Free Pomodoro timer with work and break sessions, auto-cycling, session counter and notification sound. Stay focused with the 25/5 technique.

Online Notepad

A distraction-free online notepad that autosaves to your browser as you type. No account, no cloud - your notes stay on your device.

Screen Resolution

Instantly see your screen resolution, browser viewport size, pixel density and color depth - updates live as you resize.