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Collection 89

The Collection bundles single-purpose tools, each with its own page and shareable URL, grouped by theme so you find the right one-liner fast. Everything runs locally in your browser, free and without sign-up.

Encoding & Formats 11

Encode and convert characters, URLs and data with compact one-liners: Base64, URL or HTML, all running locally in your browser.

Text to ASCII Codes Convert text to decimal ASCII codes and back, directly in your browser for fast encoding, decoding and text processing. Hex to Text / Text to Hex Convert text to hexadecimal codes and back, directly in your browser for fast encoding, decoding and text processing. URL Parser Split a URL into protocol, host, path, query and anchor so that each individual component can be inspected and analyzed directly. GDPR-compliant. UTF-8 Byte Counter Count the number of UTF-8 bytes and characters in a text to determine the exact storage size and character length at a glance. GDPR-compliant. Base32 Encode Encode text to Base32 and back, giving you a flexible and reliable way to transform and safely transfer encoded data. Runs in your browser, GDPR-compliant. ROT13 Cipher Apply the ROT13 rotation cipher to your text to obscure it or make it readable again whenever you need it at any time. Runs in your browser, GDPR-compliant. Caesar Cipher Encrypt or decrypt text with the Caesar shift, letting you easily read or compose encrypted messages with a simple offset. Runs in your browser, GDPR-compliant. Text to NATO Alphabet Translate letters and digits into NATO phonetic alphabet words, giving you a clear and precise way to represent characters phonetically. GDPR-compliant. Generate Multiple UUIDs Generate a selectable number of UUID v4 values at once, letting you create multiple unique identifiers in parallel without duplicates. GDPR-compliant. Unicode Escape Converts text into Unicode escapes and displays emojis as code points, practical for checking character strings. Runs locally in your browser, GDPR-compliant. ROT47 Encrypts or decrypts text with ROT47 across all printable characters, offering a straightforward encoding algorithm. Runs in your browser, GDPR-compliant.

Text 22

Quick text helpers in your browser: count characters, reverse words or check formatting, comfortably and without sign-up.

Remove Accents Strip diacritical marks such as é or ü from text, giving you a clean ASCII-compatible version for further processing. Runs in your browser, GDPR-compliant. Remove Punctuation Remove all punctuation and special characters from text, leaving only the core words for a clean and focused analysis. Runs in your browser, GDPR-compliant. Sentence Case Convert text to sentence case so that only the first letter is capitalized and the rest remains consistently lowercase. Runs in your browser, GDPR-compliant. Title Case Capitalize the first letter of every word (Title Case), giving you properly formatted headings and titles that stand out clearly. GDPR-compliant. Number Lines Add sequential line numbers to each line of text, making it easy to reference specific lines without any confusion. Runs in your browser, GDPR-compliant. Word Frequency Count how often each word appears in a text, revealing the most frequent terms and giving you insight into the overall structure. GDPR-compliant. Reverse Text Reverse any text including all emojis reliably, a handy tool for creative writing projects, technical analyses, or data studies. GDPR-compliant. Count Characters Count characters, letters, digits, spaces, and special characters in a text to better understand and analyse your writing. Runs in your browser, GDPR-compliant. Text to URL Slug Convert any text into a URL-friendly slug with automatic resolution of umlauts and cleanup of special characters for clean links. GDPR-compliant. Palindrome Check Check whether a text reads identically forwards and backwards, an elegant exercise for logical thinking and word play. Runs in your browser, GDPR-compliant. Longest Word Find the longest word in any text and analyse your language patterns with precision to improve your command of language. Runs in your browser, GDPR-compliant. Alternating Case Switch your text into alternating upper and lower case in the sArCaStIc style for creative visual effects and striking typography. GDPR-compliant. Pig Latin Translate English words into Pig Latin and playfully discover one of the best-known language games around for fun. Runs locally in your browser, GDPR-compliant. Reverse Word Order Reverse the order of words in a sentence without changing any individual letters and discover new sentence structures. Runs in your browser, GDPR-compliant. Remove Extra Spaces Remove duplicate spaces and unnecessary line breaks to format your text cleanly and readably for professional presentation. GDPR-compliant. Acronym Generator Create an acronym from the initial letters of a phrase to produce shorter, easy-to-remember labels for projects or groups. Runs in your browser, GDPR-compliant. Vowel Counter Count vowels and consonants in a text and analyse the linguistic composition of your own writing and daily habits. Runs locally in your browser, GDPR-compliant. Maskify Text Masks the middle of a text so only the first and last characters stay visible, ideal for protecting sensitive data. Runs in your browser, GDPR-compliant. Remove Duplicate Words Removes words that repeat right after each other and cleans texts with accidental repetitions at a single glance. Runs locally in your browser, GDPR-compliant. Sort Letters Sorts the characters of a text alphabetically and merges upper and lower case into a clear, well-ordered list. Runs locally in your browser, GDPR-compliant. Remove Empty Lines Removes empty or whitespace-only lines and tidies up text structure, so it reads much more clearly right away. Runs locally in your browser, GDPR-compliant. Leetspeak Converts text into leetspeak by turning letters into numbers, a classic encoding style from early online culture. Runs locally in your browser, GDPR-compliant.

Math 24

Quick math one-liners for single tasks like primes, Fibonacci, Pi digits and similar mini-calculations, running right in your browser.

Pi Digits Show the first N digits after the decimal point of Pi, letting you retrieve as many places of the constant as you need directly in your browser. Fibonacci Sequence Show the first N numbers of the Fibonacci sequence, allowing you to explore and compare as many terms as you need directly in your browser. Prime Numbers Show the first N prime numbers in ascending order, allowing you to view as many primes as needed directly in your browser. Prime Check Check whether an integer is a prime number, letting you quickly determine if a number is divisible only by one and itself. Runs in your browser, GDPR-compliant. Prime Factor Calculator Compute the prime factors of any number step by step, optionally as powers. Understand arithmetic structure. Runs locally in your browser. GCD and LCM Compute the greatest common divisor (GCD) and least common multiple (LCM) of two numbers, simplifying fractions and ratios. GDPR-compliant. Factorial Compute the factorial n! of an integer up to 170, helping you solve combinatorial problems and probability calculations directly in your browser. Euler Number e Digits Show the first N digits after the decimal point of Euler's number e, letting you retrieve as many places of the constant as you need. GDPR-compliant. Simplify Fraction Reduce a fraction to its lowest common denominator and simplify mathematical expressions cleanly, clearly, and understandably. GDPR-compliant. Number Base Calculator (Any Base 2-36) Convert any decimal number into another numeral system, base 2 through 36, for programming, bit representation, and math practice. Runs in your browser. Percentage Change Calculate the percentage change between two values to spot trends and developments clearly and make informed assessments. Runs in your browser, GDPR-compliant. Number to Words Spell out a number from 0 to 999999 as a German word, handy for text processing, learning purposes, and educational exercises. GDPR-compliant. Exponent Calculator Calculate a power, meaning a base raised to an exponent, quickly and without manual effort, perfect for school, study, or work. GDPR-compliant. Modulo Calculator Find the remainder of a division, always returned as a positive value, practical for coding, math tasks, and everyday calculations. GDPR-compliant. Centimeters to Inches Convert centimeters to inches, a useful conversion for everyday measurements, international orders, and shipping needs. Runs in your browser, GDPR-compliant. Celsius to Kelvin Convert degrees Celsius directly to Kelvin, especially helpful for scientific calculations, lab work, and research tasks. Runs in your browser, GDPR-compliant. Prime Factorization Break any number down into its prime factors and understand the mathematical structure behind it, clearly and systematically. GDPR-compliant. Kilometers per Hour to MPH Convert kilometers per hour to miles per hour, practical for speed references in international comparisons and travel. Runs in your browser, GDPR-compliant. Percent of a Number Calculate what percentage one value is of another, ideal for financial analysis, everyday calculations, and planning purposes. GDPR-compliant. Feet to Meters Convert feet to meters, a reliable conversion for measurements from the imperial system, especially when buying furniture. Runs in your browser, GDPR-compliant. Inches to Centimeters Converts inches to centimeters and is very practical for measurements in sewing, building, or interior design projects. Runs in your browser, GDPR-compliant. Liters to Gallons Converts liters to US gallons and is handy for accurately measuring recipes or fuel amounts in your everyday life. Runs locally in your browser, GDPR-compliant. Fraction to Decimal Converts a fraction into a decimal number and helps with calculations in school or during daily work routines. Runs locally in your browser, GDPR-compliant. Square Root Calculates the square root of a number and is well suited for math exercises and geometry problems during studies. Runs locally in your browser, GDPR-compliant.

Random 9

Let randomness work for you: random numbers, picking from lists and small decision helpers, all free and without sign-up.

Random Picker Randomly pick one entry from your list, giving you a fair and unbiased way to make a decision without manual selection. Runs in your browser, GDPR-compliant. Random String Generate a random string with selectable length and character set, giving you a fast and reliable way to create passwords or tokens. GDPR-compliant. Random Hex Generate a random hexadecimal number with selectable length, giving you a quick and flexible way to create color values or identifiers. GDPR-compliant. Random MAC Address Generate a random MAC address in the format xx:xx:xx:xx:xx:xx right in your browser, so you can test or verify network adapters. Random IPv4 Address Generate a random IPv4 address to test networking tools or validate configurations, without touching your own network. Runs in your browser, GDPR-compliant. Shuffle List Randomly shuffle the entries of your list so you can produce a fair selection or a completely random and unbiased order. Runs in your browser, GDPR-compliant. Lottery Numbers Generate draws of 6 sorted numbers from 1 to 49 to simulate lottery results or raffles in a realistic way. Local and random. GDPR-compliant. Split into Teams Distribute the entries of your list evenly across teams so you can form random groups for games or other shared tasks. Runs in your browser, GDPR-compliant. Random Date Pick a random date inside a range you define, so you can generate realistic test data or historical scenarios for your projects. GDPR-compliant.

Hash & Checksums 2

Create, compare and verify hashes and checksums with compact one-liners, done securely and locally without any server contact.

Compare Checksums Compare a file against its checksum or put several checksums side by side, so you can quickly and reliably tell whether they match. GDPR-compliant. XOR Checksum Compute an XOR checksum for your data, a simple way to verify the integrity of files or data transfers. Runs locally in your browser, GDPR-compliant.

CSV & Data 5

For CSV and table data: check separators, count lines and solve format questions, right in your browser and without upload.

CSV Statistics Analyze your CSV data and auto-detect delimiters, rows and columns, so you can quickly grasp both its structure and content. GDPR-compliant. CSV to TSV Convert CSV data into tab-separated TSV, handy for apps, spreadsheets or databases that don't handle comma-separated values well. GDPR-compliant. Extract CSV Column Split your CSV rows into separate columns, or pick out exactly the values you want to reuse in your analysis. Runs locally in your browser, GDPR-compliant. Quote CSV Fields Quote your CSV values so that even special characters are handled safely, preparing them reliably for export or further processing. GDPR-compliant. Remove CSV Duplicates Remove duplicate rows from your CSV file to save time on manual cleanups and keep your datasets clean and consistent. Runs in your browser, GDPR-compliant.

UUID / GUID 2

Generate and validate UUIDs and GUIDs with compact one-liners, handy for developers and API testing, right in your browser.

Random GUID Generate a random UUID v4 directly in your browser, locally and without sign-up, ready to use in your project right away. UUID Validator Check whether a string is a valid UUID and show its version and variant, directly in your browser without any detours.

Time & Date 8

Get timestamps, weekdays and date details right at hand with fast one-liners, directly in your browser and without sign-up.

Find Weekday Find out which weekday any given date falls on, so you can slot appointments and plans into the right weekly context. Runs in your browser, GDPR-compliant. Leap Year Check Check whether a year is a leap year, keeping your date math, calendars and deadlines accurate and correct. Runs locally in your browser, GDPR-compliant. Day of Year Calculate the day of the year for any date, so you can track progress and keep a clear overview of the year. Runs locally in your browser, GDPR-compliant. ISO Week Number Find the ISO calendar week of a date, making it easier to navigate the yearly calendar and plan around deadlines. Runs locally in your browser, GDPR-compliant. Days Until Date Count how many days remain until a specific date, so you can prepare in good time for important occasions and deadlines. Runs in your browser, GDPR-compliant. Age Calculator Calculate the exact age between two dates, to precisely determine age differences or the span between two life events. Runs in your browser, GDPR-compliant. Seconds to H:MM:SS Convert seconds into hours, minutes and seconds, so time values become clearer and more readable for reports and workflows. GDPR-compliant. Days in Month Find out how many days a given month has, leap-year rule included, so you know exactly how much time you have. Runs locally in your browser, GDPR-compliant.

Units 6

Convert everyday units with ease: kilometers to miles, celsius to fahrenheit, kilograms to pounds, all in your browser.

Kilometers to Miles Convert kilometres to miles so you can compare distances in the other unit, whether for training, travel or planning. Runs in your browser, GDPR-compliant. Miles to Kilometers Convert miles to kilometres so you can compare distances in the other unit, whether for sport, travel or planning. Runs locally in your browser, GDPR-compliant. Celsius to Fahrenheit Convert degrees Celsius to Fahrenheit so you can display temperatures in the other scale, whether traveling or cooking. Runs in your browser, GDPR-compliant. Fahrenheit to Celsius Convert degrees Fahrenheit to Celsius so you can display temperatures in the other scale, whether traveling or cooking. Runs in your browser, GDPR-compliant. Kilograms to Pounds Convert your weight from kilograms to pounds (lbs) quickly and accurately, practical for travel luggage or daily comparisons. GDPR-compliant. Human-Readable File Size Convert any byte count into a human-readable format such as B, KB, MB, GB, or TB so you can easily understand file sizes. Runs in your browser, GDPR-compliant.