Count words, format JSON, make QR codes, resize images, calculate a mortgage and 377+ more — free utilities that run instantly in your browser.
Jump straight to what you need — pick a category or search above.
Count, clean, transform and analyze text.
Word Counter · Case Converter · Lorem Ipsum Generator · Text Diff Checker
Meta tags, counters and on-page SEO helpers.
Meta Tag Generator · Meta Title and Description Length Checker · UTM Campaign URL Builder · Open Graph Generator
Formatters, encoders and generators for devs.
JSON Formatter · Regex Tester · Base64 Encode / Decode · URL Encode / Decode
Convert units, data, colors and formats.
JSON to YAML Converter · JSON to XML Converter · XML to JSON Converter · Base32 Encode and Decode
Everyday percentage, health and date calculators.
Percentage Calculator · Tip Calculator · Discount Calculator · BMI Calculator
Loans, taxes, savings, investing & business math.
Income Tax Calculator · Paycheck Calculator · Hourly to Salary Calculator · Overtime Pay Calculator
Geometry, algebra, statistics & number tools.
Circle Calculator · Triangle Calculator · Rectangle Calculator · Square Calculator
BMI, calories, heart rate & body metrics.
TDEE Calculator · One Rep Max Calculator · Max Heart Rate Calculator · Target Heart Rate Calculator
Palettes, gradients, contrast & color converters.
Color Scheme Generator · Gradient Generator · HEX to RGB Converter · RGB to HEX Converter
Counters, generators & tools for every platform.
Instagram Caption Counter · TikTok Caption Counter · LinkedIn Character Counter · Facebook Character Counter
Timers, clocks, countdowns and date math.
Time Zone Converter · Countdown Timer · Pomodoro Timer · Online Stopwatch
Resize, compress, crop and convert images.
Image Compressor · Image Resizer · Image Format Converter · Image Cropper
Random data, names, colors, passwords & more.
Password Generator · QR Code Generator · UUID Generator · Random Number Generator
Fancy text, memes and playful generators.
Morse Code Translator · Pig Latin Translator · ASCII Text Art Generator · Fancy Text Generator
Count, clean, transform and analyze text.
Count words, characters, sentences & reading time.
UPPERCASE, lowercase, Title Case, camelCase & more.
Generate placeholder paragraphs, sentences or words.
Compare two texts and highlight the differences.
Turn any title into a clean URL slug.
Strip line breaks and extra whitespace from text.
Find and replace text with optional regex.
Count how often each word appears in your text.
Count characters, words, sentences & paragraphs instantly
Count sentences, words, and paragraphs instantly
Count lines, words & characters instantly — no signup needed
Flip text by characters, words, or line order — instantly
Strip repeated lines instantly — case-insensitive, trimmed, ordered your way
Sort any list of lines A–Z or Z–A in one click
Prefix every line with a number — instant, flexible, copy-ready
Capitalize every word instantly — title case, sentence case, and more
Instant title case — small words stay lowercase, every time
Clean up messy text — strip extra spaces, tabs, and blank lines instantly
Repeat any text N times with a custom separator — instantly
Instantly generate random English words — copy, format, repeat.
Instantly check if any text is a palindrome — spaces and punctuation ignored.
Encode or decode any text with ROT13 instantly
Encode and decode text with any Caesar shift in one click
Spell it out clearly — convert any text to NATO phonetic words
Count syllables in any word or passage — instantly
Turn any phrase into a clean acronym instantly
Meta tags, counters and on-page SEO helpers.
Generate perfect meta, Open Graph & Twitter tags in seconds
Check your SEO title & meta description length before you publish
Build perfect UTM tracking URLs in seconds
Generate perfect og: meta tags for social sharing in seconds
Build a perfect robots.txt file in seconds — no coding needed
Turn keywords into ready-to-post hashtags in seconds
Instant keyword & phrase frequency analysis for smarter SEO writing
Count your tweet characters live — URLs handled correctly
Count every character in your YouTube description — and see exactly what shows before the fold.
Formatters, encoders and generators for devs.
Format, beautify & validate JSON instantly.
Test regular expressions with live match highlighting.
Encode text to Base64 or decode it back instantly.
Percent-encode or decode URLs and query strings.
Generate SHA-1, SHA-256, SHA-384 & SHA-512 hashes.
Convert Unix timestamps to dates and back.
Write Markdown and see the rendered output live.
Convert CSV data into a JSON array.
Convert a JSON array into CSV.
Convert colors between HEX, RGB and HSL.
Decode a JWT header and payload.
Convert numbers between binary, octal, decimal and hex.
Encode or decode HTML entities.
Convert text to binary and binary to text.
Instantly pretty-print, validate, and minify any XML
Instant SQL beautifier — clean indentation, uppercase keywords
Instantly indent and format messy HTML into clean, readable code
Shrink HTML instantly — strip comments, collapse whitespace
Instantly format messy CSS with clean indentation and spacing
Shrink your CSS instantly — strip comments, whitespace, and bloat.
Shrink your JavaScript instantly — strip comments, collapse whitespace.
Turn any JSON object into clean TypeScript interfaces instantly
Build cron schedules visually and get plain-English explanations instantly
Convert HTML to clean Markdown in your browser — instantly, free
Convert Markdown to clean HTML instantly — with live preview
Every HTTP status code explained — search, filter, copy
Instantly look up any file extension's MIME type
Every ASCII character 0–127 with dec, hex, octal, binary and description — instantly searchable.
Instantly decode any user-agent string into browser, OS and device
Instantly decode any IPv4 subnet — mask, hosts, broadcast, and more.
Parse any URL into editable parameters and rebuild it instantly
Build the perfect .gitignore in seconds — pick your stacks, copy, done.
Build and export clean Markdown tables in seconds
Instant AND, OR, XOR, NOT & shift results in dec, hex, and binary
Escape and unescape strings for JSON, JavaScript, and Unicode instantly
Build beautiful CSS gradients visually — copy the code instantly.
Design layered CSS box shadows visually — copy the code instantly.
Visual sliders for every corner — copy your CSS instantly
Design smooth animations with a live cubic-bezier curve editor
Check WCAG contrast ratios instantly — AA & AAA for any two colors
Every regex token, class, and pattern — searchable and testable.
Generate MD5 hashes instantly — live, in your browser
Instant CRC32 checksum from any text — hex output, no upload
Generate secure HMAC signatures instantly in your browser
Check how strong your password really is — entropy, crack time, and fixes.
Validate any card number with Luhn check and brand detection
Convert units, data, colors and formats.
Instantly convert JSON to clean, readable YAML — no libraries needed
Turn any JSON object or array into clean, readable XML instantly
Convert XML to clean, readable JSON instantly
Encode and decode text with RFC 4648 Base32 instantly
Convert hex to readable text and text to hex instantly
Convert any length instantly — mm, cm, m, km, inches, feet, yards & miles
Instantly convert any weight between mg, g, kg, oz, lb, stone, and tons
Instantly convert Celsius, Fahrenheit, and Kelvin — all at once
Instantly convert between ml, litres, cups, tbsp, tsp, pints, quarts and gallons
Convert any area unit instantly — m², ft², acres, hectares & more
Instantly convert mph, km/h, m/s, and knots — with real-world context
Instantly convert between bits, bytes, KB, MB, GB, TB, and PB
Convert Pa, kPa, bar, psi, atm, and mmHg instantly
Instantly convert joules, calories, kilowatt-hours and more
Convert between milliseconds, seconds, minutes, hours, days, and more instantly
Convert tsp, tbsp, cups, ml, fl oz & grams instantly
Convert degrees, radians, gradians, turns and more instantly
Convert numbers to Roman numerals — and back — instantly.
Spell out any number in plain English instantly
Convert px to rem (and back) instantly — with bulk convert and a reference table.
Convert shoe sizes between US, UK, and EU in one click
Everyday percentage, health and date calculators.
Instant percentage calculations — three modes, zero fuss
Split the bill fairly — tip and per-person totals in seconds.
See your final price and exact savings in seconds
Instantly check your BMI in metric or imperial units
Find your exact age in years, months, days — and total days lived.
Find the exact gap between any two dates in seconds
Add or subtract days, weeks, months, or years from any date instantly
See your monthly payment and total interest in seconds
Know your monthly payment before you sign anything.
See exactly how your money grows — with any rate, timeframe, and monthly contribution.
Instantly find interest earned and total repayment
Instantly convert hourly pay to annual salary — and every period in between
Calculate tax on any price — or strip it back out instantly
Calculate your weighted GPA instantly — add courses, grades, and credits.
Find the exact score you need on your final exam.
Know your return — instantly calculate ROI %
Instantly find profit, margin %, and markup % from cost and revenue
Turn your cost into a winning price — instantly.
Know your pace — hit your race goal every time
Know your BMR and exactly how much to eat for your goal
Turn your daily calories into exact protein, carb, and fat targets.
Estimate your body fat % with the accurate US Navy method
Know your due date, week by week
Add, subtract, multiply, or divide fractions — simplified instantly
Solve A:B = C:D instantly — and reduce any ratio to its simplest form
Instantly find the mean, median, mode, range, sum, and count of any numbers.
Instant population & sample standard deviation, variance, and mean
Instantly check if any number is prime — and see its factors
Find the GCD and LCM of any set of numbers instantly
Loans, taxes, savings, investing & business math.
Estimate your 2024 US federal income tax in seconds
Know your real take-home before payday
Convert any hourly wage to weekly, monthly, and annual salary instantly
Calculate your overtime pay instantly — regular, double time, or any multiplier
See exactly how your 401(k) grows — with employer match included
See exactly how much your nest egg will grow by retirement
Know exactly how much to save each month to hit your goal.
See exactly how daily compounding grows your money, day by day.
Convert any nominal rate to APY in seconds — see your true yield
Find the true cost of any loan in seconds
See exactly how much your CD will be worth at maturity
See every payment — principal, interest & balance — for your entire loan.
Know your monthly payment before you sign anything.
See your monthly payment and total interest before you borrow
See exactly when you'll be debt-free — and how much interest you'll pay
Know your down payment and loan amount instantly
Crush your debts fastest — smallest balance first
See exactly how long and how much it costs to escape credit card debt
See your monthly savings and break-even in seconds
Find your max home price using the lender-standard 28/36 rule
Find your break-even point — renting vs buying made clear
Know exactly where you stand — assets minus liabilities in seconds.
See how inflation erodes your money over time
Know instantly if your investment creates or destroys value
Calculate IRR from any series of cash flows — instantly.
See exactly how much your money will grow over time
Find today's worth of any future sum — instantly
Instantly find future value, present value, or required payment for any annuity
Generate year-by-year asset depreciation schedules instantly
Create professional invoices in seconds — print or save as PDF.
Know exactly what to charge — down to the hour.
Instantly find your gross, operating, and net profit margins
Find exactly how many units you need to sell to cover all costs.
Calculate CPM, ad cost, or impressions in seconds
Calculate cost per click — or solve for cost or clicks instantly
Instantly measure return on ad spend for any campaign
Calculate what each customer is truly worth to your business
Calculate your commission instantly — flat rate or tiered, with split support.
Split any bill fairly — with tip, in seconds
See how extra payments eliminate your mortgage years early
Find out exactly what PMI costs you — and when it ends.
Calculate your annual property tax in seconds
Estimate your mortgage closing costs before you close
Turn your annual salary into an exact hourly rate instantly
See your new salary instantly — by percent or dollar raise
Add or remove VAT instantly at any rate
Add or remove GST from any amount in seconds
Instantly find which product gives you more for your money
See exactly what percent of your income you're saving
Know exactly how much to save before life throws a curveball.
Find out exactly how many years until you can retire early
Instantly know your crypto profit, loss, and ROI after fees
See exactly how much your shares pay you every year
Find your true cost basis across every buy — instantly.
Know your real gain — profit, loss, and return % after fees
See your real savings when multiple discounts stack
Geometry, algebra, statistics & number tools.
Instant circle properties from radius, diameter, circumference, or area
Instant area, perimeter, and angles for any triangle
Area, perimeter & diagonal — instantly, in any unit
Instantly find area, perimeter, and diagonal from any side length
Find a trapezoid's area instantly from two parallel sides and height
Find the area (and perimeter) of any parallelogram instantly
Instant area and perimeter for any ellipse — just enter your axes
Instant volume and surface area for any sphere radius
Instantly find volume, surface area, and diagonal of any cube
Instant cylinder volume and surface area — any unit, any size.
Instant cone volume and surface area from radius and height
Instant pyramid volume from any base shape and height
Instantly find volume, surface area, and diagonal of any box
Solve any right triangle side instantly — just enter two values
Instantly find the distance between any two points on a coordinate plane
Find the exact midpoint between any two coordinate points instantly
Slope, angle, and line equation from any two points — instantly.
Area and perimeter of any regular polygon — instantly
Find the hypotenuse — or any missing side — of a right triangle instantly.
Solve any right triangle from two known sides or angles
Solve any quadratic equation instantly — roots, discriminant, vertex, and more
Solve ax + b = c for x instantly, with step-by-step working
Solve 2x2 and 3x3 linear systems instantly with step-by-step working
Raise any base to any power — negatives and decimals included
Compute log₁₀, ln, log₂, or any custom base instantly
Square, cube, and nth roots — instant and exact
Instantly find how far your measurement is from the true value
Solve any proportion a/b = c/d — find the missing term instantly
Convert, normalize, and calculate with scientific notation instantly
Round numbers to decimal places, nearest 10/100, or significant figures
Count sig figs instantly — and round any number to N significant figures
Find the absolute value of any number or expression instantly
Compute n! instantly — exact big-number results with step-by-step breakdown
Calculate nPr and nCr instantly — with step-by-step formulas
Calculate C(n, k) instantly — exact results for any n and k
Compute a mod n — negatives handled correctly, every convention shown
Find every divisor of any number — and know if it's prime
Break any integer into its prime building blocks instantly
Generate any Fibonacci sequence or find the exact Nth term instantly
Instantly find population & sample variance for any data set
Instantly find how far any value sits from the mean
Find any percentile value or rank a score in your dataset instantly
Instantly calculate event probabilities — AND, OR, and complement rules
Exact probabilities for any dice combination — no guessing, just math.
Calculate confidence intervals for a mean instantly — no stats software needed
Find the Pearson r between any two variables instantly
Calculate the weighted mean from any list of values and weights
Find the exact number of survey responses you need
Instant sin, cos, tan, sec, csc & cot — degrees or radians
Instantly find arcsin, arccos, and arctan in degrees and radians
Solve any triangle side or angle with the law of cosines
Solve any triangle instantly with the Law of Sines
Simplify any ratio to lowest terms — instantly.
Convert any fraction to its decimal and percentage instantly
Convert any decimal to a simplified fraction instantly
Add, subtract, multiply, and divide mixed numbers instantly
See every step of long division — quotient and remainder explained
Instantly find the % increase or decrease between any two numbers
Calculate any final value from initial amount, growth rate, and time periods
Find any y value between two known points instantly
Find any term and sum of arithmetic or geometric sequences instantly
Find the greatest common factor instantly — with full step-by-step working
Calculate arithmetic, geometric & harmonic mean instantly
BMI, calories, heart rate & body metrics.
Know exactly how many calories your body burns every day
Estimate your max lift in seconds — with a full rep table
Find your max heart rate and 5 training zones instantly
Find your ideal training zones using the Karvonen method
Find your exact daily water goal based on weight and lifestyle
Find your ideal body weight using four trusted clinical formulas.
Find your resting calorie burn — Mifflin & Harris-Benedict
Find your lean mass instantly — no guesswork, no equipment.
Know your WHR health risk in seconds — no signup needed
Know your central fat risk in seconds — just waist and height.
Calculate your body surface area using Du Bois & Mosteller formulas
Find out exactly how many calories your workout burns
Find your daily protein target in seconds — no guesswork.
Know your aerobic fitness — no lab required
Estimate your blood alcohol level instantly — and know when you're safe
Wake up refreshed — find your perfect sleep and wake times.
See exactly how much smoking is costing you — per week, month, year, and lifetime.
Know your week, trimester, and due date instantly
Find your fertile window and ovulation day in seconds
Find your likely conception date from your last period or due date
Turn your step count into real distance — miles or km, tuned to your height.
Find out exactly how many calories your steps burn
See exactly how much body weight you've lost — instantly.
Find your true muscle-to-height ratio — beyond BMI
Calculate your US Army body fat % with the official AR 600-9 tape method
Instantly see how far your weight is from the healthy range
Predict any race finish time from a known result
Palettes, gradients, contrast & color converters.
Generate beautiful color schemes from any base color in seconds
Design beautiful CSS gradients with a live visual editor
Instantly convert HEX colors to RGB (and back) with a live preview.
Convert RGB colors to HEX and back in one click
Convert HEX colors to HSL (and back) instantly
Convert RGB colors to CMYK and back — instantly
Convert HSL to RGB (and back) instantly with live sliders
Blend any two colors at your chosen ratio — instantly.
Generate beautiful tints and shades from any base color
See your colours through colour-blind eyes — instantly
Check WCAG AA & AAA contrast in seconds — with live preview
Instant random colors in HEX, RGB & HSL — with palette modes
Instantly find the opposite color on the color wheel
Generate beautiful analogous color palettes from any base hue
Generate balanced triadic color palettes from any base color
Generate a beautiful tint-to-shade palette from a single hue
Generate beautiful tints and shades from any color instantly
Every CSS named color — search, preview, and copy in one click
Pick any color and instantly copy HEX, RGB, or HSL values
Adjust any color's lightness in one click — get HEX, RGB & HSL instantly
Instantly find the nearest CSS named color for any hex code
Build stunning text shadows with live preview and instant CSS copy
Tweak CSS filters live and copy the perfect image effect instantly
Generate frosted-glass CSS in seconds — blur, opacity, border, done.
Generate Soft-UI CSS shadows in seconds — preview, tweak, copy.
Convert RGBA colors to 8-digit HEX (with alpha) and back
Convert HSV (HSB) to RGB and HEX — and back — with live sliders
Timers, clocks, countdowns and date math.
Convert any date and time across every major time zone instantly
Count down to any date — live days, hours, minutes & seconds
Stay focused with 25/5 Pomodoro cycles — fully in your browser
Track every millisecond — start, stop, lap, and reset with precision.
Free online alarm clock — set, ring, dismiss, right in your browser.
Live current time across 28 cities — at a glance
Find the ISO week number and full date range for any date
Count working days between dates — weekends excluded automatically.
Find the exact gap between any two times — even overnight shifts.
Resize, compress, crop and convert images.
Compress images instantly — smaller files, same browser
Resize any image instantly — no upload, no account needed.
Convert images between PNG, JPEG, and WEBP instantly — no upload needed
Crop any image in seconds — no upload, no account needed
Rotate and flip any image instantly — no upload, no account
Resize any image into ready-to-use favicons in seconds
Click any pixel in your image to instantly get its HEX & RGB color
Extract a beautiful color palette from any image instantly
Scale any image or video to the exact size you need
Protect your images with custom text watermarks in seconds
Convert any image to Base64 instantly — no upload, no server
Paste Base64, see your image instantly — no upload needed
Generate placeholder images instantly — custom size, colors, and label.
Random data, names, colors, passwords & more.
Create strong, random passwords in one click.
Turn any text or URL into a downloadable QR code.
Generate random version 4 UUIDs.
Generate random numbers in a custom range.
Generate random strings with custom character sets.
Instant random name generation — pick a count, choose a gender, copy and go.
Instant fictional addresses for testing and development
Instant unique usernames — pick a style, copy, done.
Turn any keyword into dozens of brandable business name ideas instantly.
Roll any NdM combination with crypto-random fairness
Flip a fair virtual coin — single flips or bulk runs with live tallies
Paste a list, pick a random winner — powered by crypto randomness.
Shuffle any list instantly with cryptographic randomness
Generate beautiful, harmonious 5-color palettes instantly
Generate secure random PINs instantly — any length, any quantity
Meat-themed placeholder text for hungry developers
Artisanal placeholder text, locally sourced from the internet.
Sweet placeholder text made of frosting, sprinkles, and sugar.
Turn any keyword into dozens of catchy slogans instantly.
Fancy text, memes and playful generators.
Translate text to Morse code and back — instantly, free.
Instantly translate English to Pig Latin — free & fun
Turn any word into giant block-letter ASCII art instantly
Turn plain text into 20+ Unicode font styles instantly
Turn plain text into beautiful cursive Unicode — paste anywhere
Turn plain text into eye-catching bubble characters instantly
Turn plain text into elegant Unicode small caps instantly
Turn any text into bold, crossed-out statements instantly
Flip any text upside down instantly — copy and share the fun
Turn normal text into cursed glitch art with one click
tUrN aNy TeXt InTo mOcKiNg SpOnGeBoB cAsE iNsTaNtLy
Turn plain text into wide aesthetic Unicode characters instantly
Format text for Discord in one click — bold, italic, spoilers & more
Put a 👏 between 👏 every 👏 word — instantly.
Turn plain text into expressive emoji-filled messages instantly
Every ToolBark tool runs entirely in your browser with JavaScript. Your text, files and data are never uploaded, logged or stored — so it's fast, works offline, and stays yours.
Social Media22
Counters, generators & tools for every platform.
Instagram Caption Counter
Count caption characters and hashtags before you post
TikTok Caption Counter
Count TikTok caption characters before you post
LinkedIn Character Counter
Write LinkedIn-perfect content — never get cut off again
Facebook Character Counter
Stay within every Facebook limit — posts, ads, and more.
YouTube Title Counter
Count characters instantly and nail your 100-char YouTube title limit.
Twitter Thread Counter
Split any long text into perfectly sized tweet threads instantly
Engagement Rate Calculator
Instantly calculate your social media engagement rate by followers or reach
Instagram Earnings Calculator
Find out exactly what your Instagram audience is worth to brands
YouTube Money Calculator
Estimate your YouTube ad earnings from views and CPM — instantly.
TikTok Money Calculator
Estimate your TikTok income from views, brand deals, and live gifts
Ad CPM & CPC Calculator
Instantly compute CPM, CPC, CTR and impressions from your ad spend
Ad ROAS Calculator
Know your true ad profitability — ROAS, break-even, and margin in seconds
Hashtag Counter
Count hashtags, spot duplicates, and check every platform's limits instantly.
Instagram Bio Generator
Create aesthetic Instagram bios in seconds — no blank-page stress.
Social Media Bio Generator
Craft a punchy social media bio in seconds — no writer's block.
Caption Generator
Turn any topic into scroll-stopping social captions instantly
Hashtag Generator for Posts
Turn any keywords into ready-to-post hashtags in seconds
Username Ideas Generator
Instantly generate creative username ideas from any name or word
Instagram Line Break Generator
Keep your Instagram caption spacing — no more collapsed paragraphs
Follower Growth Calculator
See exactly when you'll hit your next follower milestone
Link in Bio Builder
Build your link in bio page in seconds — no account needed
Discord Timestamp Generator
Generate Discord timestamp codes that show in every user's local time