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All Tools (124)
Browse every free online tool available on ToolHop, organised by category.
Banking
🏦
IBAN Validator / Generator
Validate IBANs with live checksum (MOD 97) and formatting. Generate checksum-valid sample IBANs by country, copy or format in groups of 4.
💱
SWIFT Code Lookup
Check, validate, and parse SWIFT/BIC codes. Instantly see bank code, country, location, and branch information. Ensure codes follow ISO 9362 format for international payments.
💳
Credit Card Validator
Validate credit card numbers instantly using the Luhn checksum. Detect card issuer (Visa, MasterCard, AMEX, Discover) and format in groups of 4 for readability.
🏦
Routing Number Checker
Validate US bank routing numbers (ABA numbers) instantly. Check digit length, verify checksum, and detect common errors.
🌍
IBAN Country Formats
Lookup IBAN formats by country. See required length, country code, and example IBANs. Useful for international banking and transfers.
Calculators
⚖️
BMI Calculator
Calculate your BMI using metric or imperial units. Instantly check if you are underweight, normal, overweight, or obese.
🎂
Age Calculator
Enter your date of birth to calculate your exact age in years, months, and days. Quick, simple, and accurate.
💸
Tip Calculator
Work out tips quickly and split bills between people. Enter amount, tip %, and people to see per-person cost.
💷
UK VAT Calculator
Calculate UK VAT at 20%. Add VAT to a net price or remove VAT from a gross price instantly.
🏦
Loan Calculator
Calculate loan repayments, monthly interest, and amortization schedules. Useful for mortgages and personal loans.
📈
Compound Interest
Calculate compound interest on savings or investments. Choose compounding frequency and growth duration.
➗
Percentage Calculator
Calculate percentages easily. Find X% of Y, percentage increase or decrease, and reverse percentage problems.
🔢
Prime Number Checker
Enter a number to check if it’s prime using a fast trial-division test.
📉
Percentage Difference
Calculate the absolute change and percent change from one value to another.
✖️
Factorial Calculator
Calculate the factorial of any integer n with large number support.
🔢
Prime Generator
Generate a list of the first N prime numbers instantly.
🔢
Number Base Calculator
Convert numbers between binary, octal, decimal, and hexadecimal instantly.
🎓
GPA Calculator
Calculate your GPA on a 4.0 scale with credits. Add courses and see GPA instantly.
🧍
Body Fat Calculator
Estimate body fat percentage using height, neck, waist (and hip). Quick, offline.
🏖️
Retirement Savings
Project retirement savings with monthly contributions and return rates over time.
🔥
Calories Burned
Estimate calories burned for common activities using your weight and duration.
Colors
🎨
Color Palette Extractor
Upload an image and extract dominant colors. Generate beautiful palettes for design, branding, or art.
🌈
Gradient Generator
Create linear CSS gradients and copy code instantly. Design custom gradients with multiple colors and directions.
🌈
RGB ⇄ HSL
Convert colors between RGB and HSL with a live color swatch.
🎚️
CSS Filter Generator
Design and preview CSS filters including blur, brightness, contrast, grayscale, sepia, saturate, and hue-rotate. Copy the CSS instantly.
🎨
Material Palette
Browse Google’s Material Design color palettes. View all shades, copy hex codes instantly, and preview text on background colors.
🌈
Flat UI Colors
Browse the Flat UI Colors palettes (v1 & v2). View all swatches and copy hex codes instantly for use in your designs and code.
ADVERT
Converters
🎨
HEX ⇄ RGB
Convert HEX to RGB and RGB to HEX with live preview. Useful for designers, developers, and anyone working with colors.
🔗
URL Encoder / Decoder
Safely encode or decode URLs to make them browser-friendly. Convert special characters and protect links from errors.
📦
Base64 Encode / Decode
Convert text to Base64 and decode Base64 back to text. Perfect for developers, security, and encoding binary data.
📏
Unit Converter
Convert between units of length, weight, temperature, and more. Simple online conversion calculator.
🕑
Time Zone Converter
Convert dates and times between different time zones instantly. Useful for meetings, travel, and global events.
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HTML Entities
Encode or decode HTML entities quickly. Convert symbols, characters, and text for safe web use.
↔️
CSV → JSON
Convert CSV files to JSON arrays with options. Upload a file or paste data and get instant conversion.
↔️
JSON → CSV
Convert JSON arrays into CSV format. Upload or paste JSON and download ready-to-use CSV instantly.
🔁
Base Converter
Convert numbers between bases 2-36. Supports binary, octal, decimal, and hexadecimal formats.
🏛️
Roman Numeral Converter
Convert numbers to Roman numerals and back instantly. Great for history, education, or formatting.
⚡
Morse Code Translator
Convert text to Morse and decode Morse back to text. Includes a simple audio beeper.
🌡️
Temperature Converter
Convert between °C, °F and Kelvin instantly with synced fields.
🔊
Text to Speech
Convert text to spoken audio in your browser using available system voices.
🎤
Speech to Text
Dictate into your mic and get live transcripts (when supported by your browser).
💱
Currency Converter
Convert between currencies using live exchange rates (with graceful fallback).
💻
Binary ⇄ Text
Convert text to binary and binary back to text instantly.
📄
Text to PDF
Convert any text into a downloadable PDF instantly in your browser.
📊
HTML Table to CSV
Convert HTML table code into clean CSV instantly and download.
📊
CSV Viewer
Paste CSV data and view it in a formatted table instantly.
🔢
Number to Words
Convert any integer into English words quickly (supports negatives and large numbers).
🏛️
Roman Date Converter
Convert a date into Roman numerals instantly (day-month-year).
Dates & Time
⏱️
Timestamp Converter
Convert Unix timestamps to human-readable dates and back. Supports ISO 8601 and local time conversion.
📆
Date Difference
Calculate the difference between two dates in days, weeks, or months. Fast and accurate date difference tool.
⏳
Countdown Timer
Create a countdown to any date or time. Useful for events, launches, deadlines, or personal reminders.
➕➖
Date Math
Add or subtract years, months, days, hours, and minutes from a date. Quick online date calculator.
⏱️
Stopwatch
Start, pause, and reset a precise stopwatch for tasks, workouts, and speed-runs.
📆
Days Until
Enter a date and see how many days are left (or days since). Simple and fast.
Design
💡
Neumorphism Generator
Generate neumorphic soft UI effects with adjustable shadows, blur, border radius, and inset mode. Copy CSS code instantly.
🧊
Glassmorphism Generator
Generate glassmorphism CSS with background transparency, blur, border radius, and frosted glass effects. Copy CSS code instantly.
ADVERT
Developers
🔓
JWT Decoder
Decode JWT header and payload safely in your browser. Inspect claims and structure without sending tokens anywhere.
🕰️
Cron Parser
Parse cron expressions and preview next run times. Useful for devs managing scheduled tasks and crontab jobs.
🔏
HMAC Generator
Compute HMAC signatures with SHA-256, SHA-1, or MD5 using a secret key. Secure online hashing tool.
🧪
Regex Tester
Test and debug JavaScript regular expressions. Highlight matches and quickly verify regex patterns.
🧷
URL Parser
Parse a URL into protocol, host, path, query string, and hash. Quick online URL analyzer tool.
🗜️
JS Minifier
Minify and compress JavaScript code instantly. Reduce file size with Terser-style compression and improve load speed.
🧵
CSS Minifier
Minify CSS online by removing whitespace, comments, and redundancy. Optimize your stylesheets quickly.
🧱
HTML Minifier
Minify HTML code instantly. Remove comments, extra spaces, and reduce file size for faster websites.
✅
JSON Schema Validator
Validate JSON data against a schema. Catch errors instantly with fast, browser-based JSON schema validation.
🌍
IP Checker
See your current public IP address (IPv4/IPv6) instantly. Runs client-side using a public API.
🔒
Password Strength Checker
Quickly estimate password strength with visual feedback and tips.
📝
HTML Formatter
Format and pretty-print HTML. Uses Prettier if available, with a small fallback.
🧮
JSON Diff
Compare two JSON structures and see a list of differences by path.
🌐
IP Validator
Validate IPv4 and IPv6 addresses instantly online. Great for developers and network admins.
🧩
JSON Validator
Validate JSON strings instantly and catch syntax errors fast.
🌐
HTML Preview
Preview HTML code instantly in your browser. Great for testing and learning.
🌀
CSS → Tailwind
Paste CSS and get Tailwind utility classes for common properties (offline, heuristic).
📦
Box Shadow
Design CSS box-shadows visually and copy the exact CSS.
🟦
Border Radius
Tune each corner radius visually and copy the CSS value.
✂️
CSS Clip Path
Create clip-path shapes visually and copy the CSS for your elements.
🌀
CSS gradient → Tailwind
Convert CSS gradients into Tailwind utility classes. Supports linear, radial, and conic gradients with smart mapping to Tailwind syntax.
Generators
🔐
Password Generator
Generate strong, secure, random passwords instantly. Choose length, include numbers, symbols, uppercase and lowercase letters.
🧮
Hash Generator
Generate MD5, SHA-1, and SHA-256 hashes from text instantly. Secure one-way hashing tool for developers and IT pros.
🧷
UUID Generator
Generate v4 UUIDs instantly for free. Unique, random identifiers for software projects, databases, and development.
🔲
QR Code Generator
Create QR codes from text or URLs instantly. Download as an image and use for websites, business cards, and marketing.
🎲
Random Number
Generate random numbers between any two values instantly. Great for games, raffles, and quick number picking.
📄
Lorem Ipsum Generator
Generate placeholder Lorem Ipsum text for designs, documents, and layouts. Choose number of paragraphs or sentences.
🏷️
Barcode Generator
Generate Code128 barcodes instantly from text. Download barcode images for labels, packaging, or products.
🧬
NanoID Generator
Generate secure NanoIDs with customizable length and alphabet. Great for developers needing short unique IDs.
🎲
Dice Roller
Roll any number of dice with any number of sides. Shows individual rolls and totals.
Images
🗜️
Image Compressor
Compress images in your browser to reduce file size without losing quality. Supports JPG, PNG, and WebP.
🖼️
PNG ⇄ JPG
Convert PNG to JPG or JPG to PNG instantly in your browser. Preserve quality and download in seconds.
🖼️
Image Resizer
Resize images client-side. Keep aspect ratio, adjust quality, and choose format (JPG, PNG, WebP).
🧭
EXIF Viewer
Upload an image and view EXIF metadata including camera model, lens, exposure, and GPS location.
🗜️🖼️
Image to WebP
Convert images (JPG, PNG) to WebP format online. Reduce file size while keeping high quality for the web.
⚫⚪
Image Grayscale
Convert images to grayscale instantly in your browser. Preview and download black & white versions.
🖼️
Image to Text (OCR)
Upload an image and extract text instantly using OCR technology.
ADVERT
Text
📝
Word Counter
Instantly count words, characters, sentences, paragraphs, and reading time. Perfect for essays, SEO, writers, and social posts.
🔡
Case Converter
Convert text between UPPERCASE, lowercase, Title Case, Sentence case, kebab-case, and snake_case instantly online.
🧩
JSON Formatter
Format, beautify, or minify JSON instantly. Detect errors in your JSON data with live validation and syntax highlighting.
🗒️
Markdown → HTML
Convert Markdown to clean HTML instantly. Live preview, copy HTML, and check formatting. Perfect for blogs and documentation.
➖➕
Text Diff
Compare two pieces of text and highlight differences. Great for developers, editors, and document comparison.
🔤
Slug Generator
Turn text into clean, SEO-friendly slugs for URLs. Supports kebab-case, lowercase, and safe URL formatting.
↕️
Sort Lines
Sort lines alphabetically A-Z or Z-A, remove duplicates, and trim whitespace. Simple online line sorting tool.
🧹
Remove Duplicate Lines
Strip duplicate lines from text and clean whitespace. Quick online tool to tidy lists and datasets.
📊
Word Frequency
Paste text and see the most common words with frequency counts. Great for SEO, linguistics, and analysis.
🔄
Text Reverser
Reverse text by characters, words, or lines. Handy for puzzles and quick transformations.
🚫🙂
Emoji Remover
Remove emojis and variation selectors from text with one click. Clean text for processing or publishing.
🔁
Palindrome Checker
Check if a word or phrase reads the same backwards. Ignores spaces and punctuation.
📓
Markdown Editor
Live Markdown editor with preview. Uses `marked` when available with a small fallback.
🔢
Character Counter
Count characters, words, lines and bytes instantly. Handy for SEO and social posts.
🔀
Case Shuffler
Randomize the casing of characters in your text for fun and variation.
😀
Emoji Picker
Search through emojis and copy them with one click.
📑
Text Statistics
Analyze text for words, sentences, paragraphs, and average word length instantly.
🌀
Word Scrambler
Scramble text by shuffling words or characters for fun and creative writing.
🔠
Case Alternator
Alternate the casing of text by characters or words. Create mocking SpongeBob style text easily.
☁️
Word Cloud Generator
Generate word clouds from text instantly with colorful visualizations.
📋
Markdown Table Generator
Quickly generate Markdown tables with customizable rows and columns.
🧹
Text Cleaner
Clean text instantly by removing extra spaces, special characters, and non-ASCII symbols.
✂️
Text Splitter
Split text into parts by any delimiter (spaces, commas, custom characters).
🔤
Slug Checker
Convert text into clean, SEO-friendly slugs for URLs. Removes invalid characters.
🌍
Language Detector
Instantly detect the language of any text in your browser. Fast, private, and offline.
🔁
Anagram Generator
Find anagrams for any word. Paste or load a dictionary and discover valid matches.
🕵️
Text Obfuscator
Obfuscate text using randomized substitutions for quick sharing without revealing details.
📰
Title Capitalizer
Convert headlines to smart title case with small-word exemptions. Copy result instantly.
🧩
Word Unscrambler
Unscramble letters to find words. Load your own dictionary for accurate results.
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