Case Converter
Convert text to UPPERCASE, lowercase, Title Case, camelCase, snake_case and more.
213 free tools · no sign-up
Every online tool you need, buzzing in one hive.
Convert text, edit images, generate CSS, format code, pick colors and more. ToolzHive runs everything in your browser — fast, free and private.
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Text & SEO Tools
Write, analyze and optimize text for search.
Word & Character Counter
Count words, characters, sentences, paragraphs and estimate reading time.
Language Translator
Translate text between 130+ languages with automatic language detection, like Google Translate.
Text Diff Checker
Compare two texts line by line and highlight what was added or removed.
Find and Replace
Find and replace words or regex patterns across any block of text.
Line Sorter
Sort lines alphabetically, by length, reverse them or shuffle them randomly.
Duplicate Line Remover
Remove repeated lines from a list while keeping the original order.
Whitespace Remover
Strip extra spaces, tabs, line breaks and empty lines from text.
HTML Tools
Generate, clean and convert HTML.
HTML Entity Encoder / Decoder
Escape special characters to HTML entities and back.
HTML Table Generator
Build an HTML table in a spreadsheet-like grid and copy the code.
CSV to HTML Table
Convert CSV or spreadsheet data into a clean HTML table.
HTML List Generator
Turn lines of text into bulleted or numbered HTML lists, with nesting.
URLs to HTML Links
Convert plain URLs into clickable HTML links, lists or linked text.
Mailto Link Generator
Create mailto email links with subject, body, CC and BCC, and hide them from spam bots.
Popup Window Generator
Generate the HTML and JavaScript for a link that opens a popup window.
HTML Minifier
Minify HTML by removing comments and unnecessary whitespace.
Image Tools
Resize, convert, compress and edit images.
Image Resizer
Resize images to exact pixel dimensions or by percentage.
Image Converter
Convert images between PNG, JPG and WEBP formats.
Image Compressor
Reduce image file size while keeping visual quality.
Image Filters
Adjust brightness, contrast, saturation, blur and apply photo filters.
Image Rotator & Flipper
Rotate images by 90° steps and flip them horizontally or vertically.
Image Pixelator
Pixelate images to create retro art or censor details.
Image Color Picker
Pick any color from an image and get its HEX, RGB and HSL values.
Image to Base64
Encode images to Base64 data URIs for CSS and HTML.
PDF Tools
Merge, split, convert and organize PDFs.
PDF Merger
Combine several PDF files into one document, in any order.
PDF Editor
Add text, drawings, highlights, shapes, images and signatures to any PDF, or white-out content.
PDF Splitter
Extract pages or split a PDF by page ranges.
Chat with PDF
Ask questions about any PDF and get instant answers, summaries and key facts from your document with AI.
Image to PDF
Combine JPG, PNG or WEBP images into a single PDF document.
PDF Compressor
Reduce PDF file size by compressing pages, with a choice of quality levels.
PDF to Image
Export PDF pages as high-quality PNG or JPG images.
PDF Watermark
Stamp a text or image watermark on every page of a PDF with custom position and opacity.
CSS Tools
Visual generators for modern CSS.
CSS Gradient Generator
Create beautiful linear and radial gradients with live preview.
CSS Box Shadow Generator
Design box shadows visually and copy the CSS.
CSS Border Radius Generator
Shape corners individually and generate border-radius CSS.
CSS Glassmorphism Generator
Create frosted glass effects with backdrop blur.
CSS Text Shadow Generator
Craft text shadows and glow effects with live preview.
CSS Triangle Generator
Generate pure CSS triangles in any direction and size.
CSS Cubic Bezier Generator
Build custom easing curves and preview the animation.
CSS Clip Path Generator
Clip elements into circles, polygons, stars and arrows.
Coding Tools
Encoders, formatters and dev utilities.
JSON Formatter & Validator
Beautify, minify and validate JSON with helpful error messages.
UUID Generator
Generate random version 4 UUIDs in bulk.
JWT Decoder
Decode JSON Web Tokens and inspect header, payload and expiry.
Regex Tester
Test regular expressions with live match highlighting and groups.
CSS Minifier & Beautifier
Compress CSS for production or beautify it for readability.
JSON to CSV Converter
Convert JSON arrays of objects into downloadable CSV.
CSV to JSON Converter
Turn CSV or TSV data into a JSON array of objects.
JSON to YAML Converter
Convert JSON into clean, readable YAML.
Encoders & Decoders
Base64, URL, hashes and Morse code.
Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 back to text (UTF-8 safe).
URL Encoder / Decoder
Percent-encode or decode URLs and query string values.
Bcrypt Hash Generator
Create bcrypt password hashes with a chosen cost, and check passwords against a hash.
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes.
CRC32 Checksum Generator
Calculate the CRC32 checksum of any text, as used by ZIP and PNG files.
RIPEMD-160 Hash Generator
Generate the RIPEMD-160 hash of any text, as used in Bitcoin addresses.
Whirlpool Hash Generator
Generate the 512-bit Whirlpool hash of any text.
Morse Code Translator
Translate text to Morse code and back, then play it as sound.
Color Tools
Convert, mix and generate palettes.
Color Converter
Convert colors between HEX, RGB, HSL and CMYK formats.
Color Shades Generator
Generate tints and shades of any color, from 50 to 950.
Color Palette Generator
Create harmonious palettes: complementary, triadic, analogous and random.
Contrast Checker
Check text and background contrast against WCAG AA and AAA.
Color Mixer
Blend two colors together and get every step in between.
HEX to RGBA Converter
Add transparency to any HEX color and get RGBA and 8-digit HEX.
Random Color Generator
Generate random colors, lock the ones you like and copy them.
Color Blindness Simulator
See images the way people with color vision deficiency see them.
Data Generators
Fake data, passwords and placeholder text.
Password Generator
Generate strong, random passwords with custom rules.
Random Number Generator
Pick random numbers in any range, with or without repeats.
Lorem Ipsum Generator
Generate placeholder paragraphs, sentences or words for your designs.
List Randomizer
Shuffle a list or pick random winners from it.
Random Name Generator
Generate random first names, last names or full names by gender and origin.
Fake Identity Generator
Generate fake names, addresses, phone numbers, emails and other test profile details by country.
Mock Data Generator
Generate realistic fake data as JSON, CSV, SQL or XML for testing and demos.
Real Content Generator
Generate readable English placeholder text on real topics instead of lorem ipsum.
Converters
Convert text, numbers and codes.
Serialize & Unserialize
Convert PHP serialized data to readable JSON, and JSON back to PHP serialize format.
Text to Binary Converter
Convert text to binary, hex, octal or decimal codes and back.
Roman Numeral Converter
Convert numbers to Roman numerals and back.
Number to Words
Spell out numbers in English words, including check-writing format.
QR Code Generator
Create QR codes for links, text, Wi-Fi and contacts with custom colors.
Number Base Converter
Convert numbers between binary, octal, decimal, hex and any base.
Barcode Generator
Generate CODE128, EAN-13, UPC and other barcodes as PNG or SVG.
Network Tools
IP, DNS, domains and subnets.
Domain Age Checker
Find when a domain was registered, how old it is, when it expires and who the registrar is.
What Is My IP Address
See your public IP address, browser, device and user agent details.
DNS Lookup
Look up A, AAAA, MX, NS, TXT, CNAME, SOA and CAA records for any domain.
IPv4 Subnet Calculator
Calculate network, broadcast, host range and mask for any IPv4 subnet, and split it.
IPv6 Subnet Calculator
Calculate IPv6 prefixes, address ranges and subnets, and expand or compress addresses.
Date & Time Tools
Dates, ages, timers and time zones.
Stopwatch
A precise online stopwatch with lap times.
Countdown Timer
Set a countdown with an audible alert when time is up.
Age Calculator
Calculate exact age in years, months, days and more.
Date Calculator (Add & Subtract)
Add or subtract days, weeks, months and years from a date, with an optional business-days mode.
Localized Date Formats
See how a date is written in 30+ countries and languages, plus ISO 8601, RFC 2822 and Unix formats.
Unix Timestamp Converter
Convert Unix timestamps to human dates and back.
Date Difference Calculator
Count days, weeks and business days between two dates.
Time Zone Converter
Convert a time between time zones around the world.
Unit Converters
Length, weight, temperature and more.
Length Converter
Convert meters, feet, inches, centimeters, kilometers, miles and more.
Weight Converter
Convert kilograms, pounds, grams, ounces, stones and tons.
Temperature Converter
Convert Celsius, Fahrenheit, Kelvin and Rankine instantly.
Area Converter
Convert square meters, square feet, acres, hectares, marla and kanal.
Volume Converter
Convert liters, gallons, milliliters, cups, fluid ounces and cubic meters.
Speed Converter
Convert km/h, mph, meters per second, knots and feet per second.
Time Converter
Convert seconds, minutes, hours, days, weeks, months and years.
Data Storage Converter
Convert bytes, KB, MB, GB, TB and binary units like MiB and GiB.
Basic Math Calculators
Arithmetic, percentages and roots.
Addition Calculator
Add two or more numbers of any size exactly, including decimals and negatives.
Subtraction Calculator
Subtract one number from another exactly, with no rounding errors.
Multiplication Calculator
Multiply numbers of any size exactly, including decimals.
Division Calculator
Divide numbers and see the exact decimal, repeating digits, fraction and remainder.
Percentage Calculator
Solve every common percentage question instantly.
Square Calculator
Find the square (and cube) of any number, exactly.
Square Root Calculator
Find the square root of any number to high precision, with simplified radical form.
Health & Body Calculators
BMI, calories, body fat and heart rate.
BMR Calculator
Calculate your basal metabolic rate with Mifflin–St Jeor, Harris–Benedict or Katch–McArdle.
Daily Calorie Calculator
Find how many calories you need per day to maintain, lose or gain weight.
Ideal Body Weight Calculator
Estimate your ideal weight with the Robinson, Miller, Devine and Hamwi formulas.
Body Fat Calculator
Estimate your body fat percentage with the U.S. Navy tape measure method.
Lean Body Mass Calculator
Calculate your lean body mass with the Boer, James and Hume formulas.
Waist-to-Hip Ratio Calculator
Calculate your waist-to-hip ratio and see your health risk level.
BMI Calculator
Calculate Body Mass Index in metric or imperial units.
Waist-to-Height Ratio Calculator
Check whether your waist is less than half your height, a simple health marker.
Everyday Financial Calculators
Loans, interest, salary and savings.
Mortgage Calculator
Calculate your monthly mortgage payment with taxes, insurance, PMI and an amortization schedule.
Auto Loan Calculator
Estimate car loan payments with down payment, trade-in, sales tax and fees.
Personal Loan Calculator
Calculate personal loan payments, total interest and the true APR with fees.
Interest Calculator
Calculate simple or compound interest with optional monthly contributions.
APR Calculator
Find the true annual percentage rate of a loan including upfront fees.
Mortgage APR Calculator
Calculate a mortgage APR including discount points and lender fees.
Credit Card Payoff Calculator
See how long it takes to pay off a credit card and how much interest you will pay.
Tip Calculator
Work out the tip and split the bill between friends.
Miscellaneous Tools
Generators, timers and calculators.
Resume Builder
Create a professional resume or CV with live preview and templates, then save it as PDF or HTML.
Lightning fast
Tools run instantly in your browser. No waiting on uploads or servers.
Private by design
Your text and files stay on your device. Nothing is stored or tracked.
Free forever
No accounts, no paywalls, no limits. Just open a tool and get to work.
Social Media Tools
Level up your posts and previews.
YouTube Thumbnail Grabber
Get every thumbnail size of any YouTube video.
Fancy Text Generator
Create stylish Unicode fonts for bios, captions and usernames.
Social Post Character Counter
Check your post against X, Instagram, LinkedIn and other limits.
Open Graph Meta Generator
Generate Open Graph and Twitter Card tags with a live preview.
Thread Splitter
Split long text into a numbered thread that fits post limits.
Instagram Caption Formatter
Keep line breaks and spacing in Instagram captions and bios.
UTM Link Builder
Add UTM campaign parameters to links for analytics tracking.
YouTube Embed Code Generator
Create responsive YouTube embed code with start time and options.