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Find the right tool fast — search by name, what it does, or the format you're working with.

198 tools

Popular

JSON Formatter

Beautify, minify, and validate JSON with instant error hints.

Developer

Base64 Encode / Decode

Convert text and files to and from Base64 in one click.

Developer

UUID Generator

Generate v4 and v7 UUIDs in bulk, ready to copy.

Generators
Popular

Password Generator

Strong, configurable passwords that never leave your device.

Generators
New

QR Code Generator

Turn links, text, or Wi-Fi into a scannable QR code.

Generators

Word & Character Counter

Live counts for words, characters, sentences, and read time.

Text & Writing

Color Picker & Converter

Pick a color and convert across HEX, RGB, HSL, and OKLCH.

Design & Color

Hash Generator

Compute MD5, SHA-1/2/3, Keccak, RIPEMD-160, BLAKE2b & CRC32 for text or files.

Security & Privacy
New

Markdown Preview

Live side-by-side preview with Mermaid diagrams, math, code highlighting & PDF export.

Text & Writing
New

Case Converter

Convert text to UPPERCASE, lowercase, Title Case, camelCase, snake_case and more.

Text & Writing
New

Unit Converter

Convert length, weight, temperature, area, volume, speed, time and data sizes.

Converters & Units
New

Unix Timestamp Converter

Convert epoch time to a date and back, with live current time and ISO 8601.

Converters & Units
New

Diff Checker

Compare two texts and highlight every difference, side-by-side or inline.

Developer
New

Percentage Calculator

Work out percentages, increases, decreases and reverse percentages instantly.

Finance & Calculators
New

Slug Generator

Turn any title into a clean, SEO-friendly URL slug — bulk and accent-aware.

SEO & Marketing
New

Lorem Ipsum Generator

Generate placeholder text by paragraphs, sentences, words or list items.

Generators
New

URL Encoder / Decoder

Percent-encode or decode text and parse query strings, all in your browser.

Developer
New

Number Base Converter

Convert between binary, octal, decimal, hex and any base from 2 to 36.

Converters & Units
New

Color Contrast Checker

Check WCAG AA/AAA contrast ratios between text and background colors.

Design & Color
New

Image Corner Rounder

Round the corners of any image and download a transparent PNG — in your browser.

Image & Media
New

Email Signature Generator

Build a clean HTML email signature for Gmail, Outlook and Apple Mail.

Generators
New

JSON ⇄ CSV Converter

Convert a JSON array to CSV and CSV back to JSON, with proper quoting.

Data & Format
New

Sign PDF

Draw or type a signature, place it on your PDF, and download — all in your browser.

Productivity
New

Age Calculator

Find your exact age in years, months and days, plus a birthday countdown.

Health & Fitness
New

BMI Calculator

Calculate your Body Mass Index and healthy-weight range, metric or imperial.

Health & Fitness
New

JWT Decoder

Decode a JSON Web Token, inspect claims, and verify HS256 signatures locally.

Security & Privacy
New

Line Tools

Remove duplicate lines, sort, trim, reverse, shuffle and number text lines.

Text & Writing
New

Password Strength Checker

Test password strength with entropy, crack-time estimates and tips.

Security & Privacy
New

Stopwatch & Timer

Accurate online stopwatch with laps and a countdown timer with presets.

Productivity
New

Random Picker

Pick a random name, number, coin flip or dice roll — fair and instant.

Productivity
Popular

Image Compressor

Compress JPG, PNG and WebP images with a quality slider — in your browser.

Image & Media
New

Image Resizer

Resize images by pixels or percentage with an aspect-ratio lock.

Image & Media
New

Image Converter

Convert images between PNG, JPG and WebP with quality control.

Image & Media
New

CSS Gradient Generator

Build linear, radial and conic CSS gradients with a live preview.

Design & Color
New

Meta Tag Generator

Generate SEO, Open Graph and Twitter Card meta tags with a live preview.

SEO & Marketing
New

Find & Replace Text

Replace text in bulk with plain text or regex, ignore-case and whole-word.

Text & Writing
New

Word Frequency Counter

Count word and phrase frequency with stop-word filtering and CSV export.

Text & Writing
New

CSS Box-Shadow Generator

Build multi-layer CSS box-shadows with presets and live preview. Copy the CSS, value, or React style instantly.

Design & Color
New

EMI / Loan Calculator

Calculate monthly loan EMI, total interest and total payment instantly.

Finance & Calculators
New

Image Cropper

Crop images to any size or a fixed aspect ratio and download — in your browser.

Image & Media
New

Favicon Generator

Create a full favicon set from an image or letters and download a ZIP.

Image & Media
New

HTML Entity Encoder / Decoder

Escape and unescape HTML entities, with optional numeric encoding.

Developer
New

XML Formatter

Beautify, minify and validate XML right in your browser.

Data & Format
New

SQL Formatter

Beautify and minify SQL queries with keyword casing and clause breaks.

Data & Format
New

UTM Builder

Build trackable campaign URLs with utm_source, medium, campaign and more.

SEO & Marketing
New

Color Palette Generator

Generate complementary, analogous, triadic and monochromatic palettes.

Design & Color
New

Encrypt / Decrypt Text

AES-256 encrypt and decrypt messages with a passphrase, fully in your browser.

Security & Privacy
New

Online Notepad

A distraction-free notepad that auto-saves in your browser, with word count.

Productivity
New

Date Difference Calculator

Find the days between two dates, or add and subtract days from a date.

Finance & Calculators
New

SERP Snippet Preview

Preview how your title and description look in Google, desktop and mobile.

SEO & Marketing
New

Fake Data Generator

Generate dummy records and export as JSON, CSV or SQL for testing.

Generators
New

JSON to TypeScript

Generate TypeScript interfaces from a JSON sample, with nested types.

Data & Format
New

Cron Expression Builder

Explain a cron schedule in plain English and preview its next run times.

Developer
New

GST Calculator

Add or reverse GST for Australia, NZ, Canada and Singapore with one-tap rate presets.

Finance & Calculators
New

Tip Calculator

Calculate the tip and split a bill between any number of people.

Finance & Calculators
New

Pomodoro Timer

Focus timer with work/break cycles, presets and a session counter.

Productivity
New

Roman Numeral Converter

Convert numbers to Roman numerals and back, with validation.

Converters & Units
New

Text Cleaner

Remove extra spaces, line breaks, HTML and smart quotes from text.

Text & Writing
New

Robots.txt Generator

Build a valid robots.txt with allow/disallow rules and a sitemap line.

SEO & Marketing
New

Discount Calculator

Find the sale price and savings from a percentage or flat discount.

Finance & Calculators
New

SIP Calculator

Project SIP and lumpsum investment returns with an invested-vs-gains split.

Finance & Calculators
New

CSV Viewer

View, sort and search CSV or TSV files as a clean table — in your browser.

Data & Format
New

Markdown Table Generator

Build Markdown tables in an editable grid or from CSV, with alignment.

Text & Writing
New

Text to Binary Converter

Convert text to 8-bit binary and decode binary back to text.

Converters & Units
New

Morse Code Translator

Translate text to Morse code and back, with audio playback.

Converters & Units
New

Compound Interest Calculator

Project savings growth with compounding and regular contributions.

Finance & Calculators
New

Aspect Ratio Calculator

Lock a ratio and solve the missing width or height for a new size.

Converters & Units
New

Text Reverser

Reverse characters, words or lines, or flip text upside down.

Text & Writing
New

Credit Card Validator

Check a card number with the Luhn algorithm and detect its brand.

Security & Privacy
New

HTML Minifier

Compress HTML by removing comments and collapsing whitespace.

Developer
New

CSS Minifier

Shrink CSS by stripping comments and unnecessary whitespace.

Developer
New

Hourly to Salary Calculator

Convert pay between hourly, daily, weekly, monthly and annual rates.

Finance & Calculators
New

Mortgage Calculator

Estimate your monthly home loan payment with tax and insurance.

Finance & Calculators
New

Email Validator

Validate email syntax in bulk and catch common domain typos.

Web & Network
New

JSON Escape / Unescape

Escape raw text into a JSON-safe string and unescape it back.

Developer
New

Placeholder Image Generator

Create custom-sized dummy images with your own colors and label.

Image & Media
New

Color Blindness Simulator

Preview images as people with color vision deficiencies see them.

Image & Media
New

Number to Words

Spell any number in English words, with a currency mode for cheques.

Converters & Units
New

GPA Calculator

Compute a credit-weighted GPA from your course grades and credits.

Productivity
New

Text to Speech

Read text aloud with selectable voices, rate and pitch — in your browser.

Text & Writing
New

Time Duration Calculator

Find the time between two clock times and add up multiple durations.

Converters & Units
New

Profit Margin Calculator

Get profit, margin and markup, or price for a target margin.

Finance & Calculators
New

Image to Base64

Encode images to Base64 data URIs and decode them back to images.

Image & Media
New

BMR & Calorie Calculator

Find your BMR and daily calorie needs (TDEE) with weight-loss, maintenance and gain targets, macros and 3 formulas.

Health & Fitness
New

Unit Price Calculator

Compare products by price per unit and find the best value.

Finance & Calculators
New

HTTP Status Codes

Searchable reference of HTTP status codes with plain-English meanings.

Developer
New

Regex Cheatsheet

Searchable reference of regular expression tokens and flags.

Developer
New

Image to PDF

Combine multiple JPG or PNG images into a single PDF — in your browser.

Image & Media
New

Image Watermark

Add a text watermark to an image with position, size and opacity.

Image & Media
New

Break-Even Calculator

Find the units and revenue needed to cover fixed costs.

Finance & Calculators
New

Browser & Screen Info

See your screen size, viewport, device and browser details locally.

Web & Network
New

Cubic Bezier Generator

Design a CSS easing curve by dragging control points, with a live preview.

Design & Color
New

Border Radius Generator

Visually craft CSS rounded corners and organic blob shapes.

Design & Color
New

ASCII Table

Searchable character codes in decimal, hex, octal and binary.

Developer
New

Text to Handwriting

Render typed text as handwriting on ruled paper and download it.

Text & Writing
New

Savings Goal Calculator

Find how much to save each month to reach a goal by a target date.

Finance & Calculators
New

IBAN Validator

Validate an IBAN's country length and mod-97 checksum.

Finance & Calculators
New

Subnet Calculator

IPv4 CIDR calculator: network, broadcast, host range and masks.

Web & Network
New

CSS Flexbox Playground

Adjust flex properties with a live preview and copy the CSS.

Design & Color
New

PX to REM Converter

Convert between px, rem, em and pt against a root font size.

Developer
New

Spreadsheet Column Converter

Convert a spreadsheet column number to its letter (1 → A) and back.

Developer
New

Timesheet Calculator

Total weekly work hours from daily start/end times and breaks, plus pay.

Finance & Calculators
New

CSS Grid Playground

Adjust grid columns, gap and alignment with a live preview and CSS.

Design & Color
New

Glassmorphism Generator

Design a frosted-glass card and copy the CSS, with a live preview.

Design & Color
New

Rotate & Flip Image

Rotate in 90° steps and flip an image horizontally or vertically.

Image & Media
New

Passphrase Generator

Create memorable, word-based passphrases with a secure random generator.

Security & Privacy
New

Invoice Generator

Build a clean invoice with line items and tax, and save it as a PDF.

Finance & Calculators
New

Srcset Generator

Build responsive <img> markup with srcset and sizes from your widths.

Developer
New

CSS Text-Shadow Generator

Tune a CSS text shadow with a live preview and copy the code.

Design & Color
New

Image Filters

Adjust brightness, contrast, saturation, blur and more, then download.

Image & Media
New

To-Do List

A simple task checklist that auto-saves in your browser.

Productivity
New

Color Mixer

Blend two colors at any ratio and copy the result or any step.

Design & Color
New

PNG to ICO

Convert an image into a multi-resolution .ico favicon in your browser.

Image & Media
New

Fancy Text Generator

Turn plain text into stylish Unicode fonts for Instagram, TikTok and bios — copy with one click.

Text & Writing
New

Typing Speed Test

Test your typing speed in WPM with live accuracy, then share your score.

Productivity
New

Spin the Wheel

A random name picker wheel — add entries, spin, and crown a winner with confetti.

Productivity
New

Merge PDF

Combine multiple PDF files into one, reorder pages, and pick page ranges — all in your browser.

Productivity
New

Regex Tester

Test regular expressions with live match highlighting, capture groups and replace preview.

Developer
New

Time Zone Converter

Compare the time across cities and plan meetings that work for everyone.

Converters & Units
New

Split PDF

Split a PDF into separate files or extract exact pages — all in your browser.

Productivity
New

Signature Maker

Draw or type your signature and download it as a transparent PNG.

Generators
New

Image Color Picker

Pick any color from an image and extract its dominant palette as HEX, RGB and HSL.

Design & Color
New

Barcode Generator

Create Code 128, EAN-13 and UPC-A barcodes and download them as SVG or PNG.

Generators
New

Countdown to Date

A live countdown to any date — days, hours, minutes and seconds, with a shareable link.

Productivity
New

EXIF Viewer & Remover

See a photo's hidden metadata — camera, date, GPS — and strip it for privacy.

Image & Media
New

Pregnancy Due Date Calculator

Find your baby's due date from your last period, conception, IVF transfer or ultrasound — with trimester dates and milestones.

Health & Fitness
New

PDF to JPG

Convert PDF pages to JPG, PNG or WebP images at the quality you choose — all in your browser.

Image & Media
New

Meme Generator

Make memes with classic top/bottom text or draggable text boxes — no watermark, no sign-up.

Image & Media
New

CPS Test — Click Speed Test

Measure your clicks per second in 1–100 second modes — left click, right click or spacebar.

Productivity
New

Word Unscrambler

Unscramble letters into every valid word — with wildcards, filters and Scrabble points.

Text & Writing
New

Fraction Calculator

Add, subtract, multiply and divide fractions and mixed numbers — with every step shown.

Finance & Calculators
New

Retirement Calculator

Project your 401k or IRA balance at retirement with contributions, employer match and inflation adjustment.

Finance & Calculators
New

Tax Bracket Calculator

See your 2024 US federal income tax bracket, effective rate and marginal rate — for any filing status.

Finance & Calculators
New

Paycheck Calculator

Convert gross pay to net take-home pay after federal/state tax, Social Security and Medicare.

Finance & Calculators
New

Debt Payoff Calculator

Compare snowball vs avalanche payoff strategies and see exactly when you'll be debt-free.

Finance & Calculators
New

Net Worth Calculator

Add your assets and liabilities to calculate your total net worth and see the breakdown.

Finance & Calculators
New

Car Loan Calculator

Calculate your monthly auto payment, total interest and true cost of any car loan.

Finance & Calculators
New

Currency Converter

Convert between 30+ world currencies with recent reference rates — fully in your browser.

Converters & Units
New

Macro Calculator

Find your daily protein, carb and fat targets from your TDEE, goal and diet style.

Health & Fitness
New

Ideal Weight Calculator

See your ideal weight by four clinical formulas (Devine, Robinson, Miller, Hamwi) — metric or imperial.

Health & Fitness
New

Body Fat Calculator

Estimate your body fat percentage using the US Navy tape-measure method — no skinfold calipers needed.

Health & Fitness
New

Ovulation Calculator

Find your fertile window, ovulation date and next period from your cycle length and last period.

Health & Fitness
New

Sleep Calculator

Find the best bedtime or wake-up time based on 90-minute sleep cycles to wake up refreshed.

Health & Fitness
New

Water Intake Calculator

Calculate your daily water needs from your weight, activity level and climate.

Health & Fitness
New

Calories Burned Calculator

Estimate calories burned for 60+ exercises using MET values and your weight and duration.

Health & Fitness
New

Reaction Time Test

Measure your reaction speed in milliseconds — click when the screen turns green.

Productivity
New

Love Calculator

A fun compatibility score based on two names — share the result with your match.

Generators
New

Random Team Generator

Paste a list of names and split them into balanced random teams in one click.

Productivity
New

Tournament Bracket Generator

Create single-elimination tournament brackets for 4–64 players or teams.

Productivity
New

Bingo Card Generator

Generate printable 5×5 bingo cards with your own words — unlimited cards, free.

Generators
New

Coin Flip

Flip a virtual coin — heads or tails — with animation and a streak counter.

Generators
New

Dice Roller

Roll any number of dice (d4–d100) with totals, history log and custom dice notation.

Generators
New

Scientific Calculator

Full scientific calculator with trig, log, factorial, powers and memory functions.

Converters & Units
New

Quadratic Equation Solver

Solve ax² + bx + c = 0 and get real or complex roots with the discriminant and working shown.

Converters & Units
New

Statistics Calculator

Calculate mean, median, mode, standard deviation, variance and more from a data set.

Data & Format
New

Grade Calculator

Compute your weighted final grade from assignments, exams and their weights.

Productivity
New

Triangle Calculator

Solve any triangle — find missing sides, angles and area from any 3 known values.

Converters & Units
New

Matrix Calculator

Add, subtract, multiply matrices and compute determinant, inverse and transpose for 2×2–4×4 matrices.

Data & Format
New

Pixel Art Maker

Draw pixel art on a customizable grid, pick colors, and export as PNG — in your browser.

Design & Color
New

Business Name Generator

Generate creative business name ideas from keywords with industry-specific suggestions.

Generators
New

Random Name Generator

Generate random first and last names by nationality and gender — bulk export included.

Generators
New

Citation Generator

Format references in APA, MLA and Chicago styles — book, journal, website and more.

Text & Writing
New

Flashcard Maker

Create and study digital flashcards — flip, shuffle, and track your score. Saves locally.

Productivity
New

Habit Tracker

Track daily habits with a 30-day grid, streaks and completion stats — saves in your browser.

Productivity
New

Image to Text (OCR)

Extract text from any image, screenshot or photo — free online OCR that runs entirely in your browser, no upload required.

Image & Media
New

Running Pace Calculator

Calculate your running pace, finish time and splits for any distance — 5K, 10K, half or full marathon.

Health & Fitness
New

Zodiac Sign Calculator

Find your zodiac sign by birthday — element, ruling planet, compatible signs and personality traits.

Generators
New

Monthly Budget Planner

Plan your monthly income, expenses and savings rate with a visual 50/30/20 breakdown. Auto-saves in your browser.

Finance & Calculators
New

Anagram Solver

Find all words from any set of letters instantly — wildcard support, Scrabble scores and word-length filter.

Text & Writing
New

Shoe Size Converter

Convert shoe sizes between US men & women, UK, EU and CM — with a complete international size chart.

Converters & Units
New

HTML to Markdown

Convert HTML to clean Markdown — pastes, imports files, and handles lists, tables and code.

Developer
New

JSON Schema Validator

Validate JSON against a JSON Schema (draft-07 / draft-2020-12) with clear error messages.

Developer
New

Reading Speed Test

Test your words-per-minute reading speed with comprehension check and percentile rank.

Productivity
New

Color Token Generator

Generate a full design-token scale (50–950 shades) from a single base color — CSS, Tailwind or JSON.

Design & Color
New

What Is My IP Address

Find your public IP address, country, city and ISP — no data is stored or shared.

Web & Network
New

Number Sequence Generator

Generate arithmetic and geometric sequences, Fibonacci, primes and custom formulas.

Converters & Units
New

Random Number Generator

Generate one or thousands of random numbers in any range — no duplicates option, crypto-secure, instant copy.

Generators
New

Celsius to Fahrenheit

Convert Celsius, Fahrenheit and Kelvin — three-way live conversion as you type. Key reference table included.

Converters & Units
New

Personal Loan Calculator

Calculate monthly loan payments, total interest, and a full amortization schedule — any amount, rate, or term.

Finance & Calculators
New

Cooking Measurement Converter

Convert cups, tablespoons, teaspoons, ml and grams — ingredient-aware for accurate baking conversions.

Converters & Units
New

Days Until

Live countdown to Christmas, your birthday, any date — days, hours, minutes ticking in real time. Shareable URL.

Productivity
New

ASCII Art Generator

Convert text to ASCII art banners with 7 font styles. One-click copy, Markdown export, works offline.

Text & Writing
New

TDEE Calculator

Total Daily Energy Expenditure calculator — maintenance calories, cut & bulk targets. Mifflin-St Jeor + Harris-Benedict. 100% private.

Health & Fitness
New

Split Bill Calculator

Split any restaurant bill with tip between people — even or custom proportional splits. No sign-up, works on mobile.

Finance & Calculators
New

Electricity Bill Calculator

Estimate your monthly electricity cost by appliance. Enter your local rate and usage hours — instant cost breakdown with visual chart.

Finance & Calculators
New

Fuel Cost Calculator

Road trip fuel cost calculator — enter distance, MPG & gas price. Supports MPG, L/100km, km/L. CO₂ estimate included.

Finance & Calculators
New

Car Lease Calculator

Monthly car lease payment calculator — depreciation fee, finance fee, total cost & effective APR. Transparent formula-based breakdown.

Finance & Calculators
New

Dog Age Calculator

Convert dog years to human years by breed size using the 2020 DNA methylation study. Life stage, remaining lifespan, and age chart.

Health & Fitness
New

Protein Calculator

Daily protein intake calculator based on ISSN guidelines — adjust for muscle gain, fat loss, or maintenance. Includes meal distribution guide.

Health & Fitness
New

Speed Distance Time Calculator

Solve for speed, distance, or time — enter any two values and the third is calculated. Supports km/h, mph, m/s and mixed units.

Converters & Units
New

YAML Formatter

Validate, beautify, and convert YAML online. Real-time syntax highlighting, error detection with line numbers, and one-click JSON export.

Developer
New

Investment Calculator

ROI, CAGR, and inflation-adjusted return calculator. Lump sum + monthly contributions, year-by-year growth table and chart. 100% private.

Finance & Calculators
New

Amortization Calculator

Full loan amortization schedule — monthly payment, principal vs interest per payment, total interest paid. Mortgage, auto, personal loans.

Finance & Calculators
New

Character Counter

Count characters, words, sentences & lines in real time. Platform limit bars for Twitter/X, LinkedIn, SMS & Instagram. No upload.

Text & Writing
New

Simple Interest Calculator

Simple interest calculator: SI = P × R × T / 100. Shows total amount, effective rate & step-by-step formula. Supports years, months, days.

Finance & Calculators
New

Area Calculator

Area calculator for 10 shapes: circle, rectangle, triangle (3 methods), trapezoid, ellipse, rhombus & more. Formula shown instantly.

Converters & Units
New

Text Repeater

Repeat any text N times with custom separator (newline, comma, space, pipe, or custom). Copy or download output. No limits, no signup.

Text & Writing
New

GCF & LCM Calculator

Find GCF (greatest common factor) and LCM (least common multiple) for up to 10 numbers. Euclidean algorithm steps & prime factorization shown.

Converters & Units