Convert Roman numerals to numbers and convert numbers to Roman numerals.
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Base64 file converterConvert a string, file, or image into its base64 representation.
Base64 string encoder/decoderSimply encode and decode strings into their base64 representation.
Basic auth generatorGenerate a base64 basic auth header from a username and password.
Email normalizerNormalize email addresses to a standard format for easier comparison. Useful for deduplication and data cleaning.
ASCII Art Text GeneratorCreate ASCII art text with many fonts and styles.
Text to UnicodeParse and convert text to unicode and vice-versa
Outlook Safelink decoderDecode Outlook SafeLink links
XML to JSONConvert XML to JSON
JSON to XMLConvert JSON to XML
Regex TesterTest your regular expressions with sample text.
Regex cheatsheetJavascript Regex/Regular Expression cheatsheet
Markdown to HTMLConvert Markdown to Html and allow to print (as PDF)
PDF signature checkerVerify the signatures of a PDF file. A signed PDF file contains one or more signatures that may be used to determine whether the contents of the file have been altered since the file was signed.
Numeronym generatorA numeronym is a word where a number is used to form an abbreviation. For example, "i18n" is a numeronym of "internationalization" where 18 stands for the number of letters between the first i and the last n in the word.
MAC address generatorEnter the quantity and prefix. MAC addresses will be generated in your chosen case (uppercase or lowercase)
Text to ASCII binaryConvert text to its ASCII binary representation and vice-versa.
ULID generatorGenerate random Universally Unique Lexicographically Sortable Identifier (ULID).
IBAN validator and parserValidate and parse IBAN numbers. Check if an IBAN is valid and get the country, BBAN, if it is a QR-IBAN and the IBAN friendly format.
String obfuscatorObfuscate a string (like a secret, an IBAN, or a token) to make it shareable and identifiable without revealing its content.
Text diffCompare two texts and see the differences between them.
Emoji pickerCopy and paste emojis easily and get the unicode and code points value of each emoji.
Password strength analyserDiscover the strength of your password with this client-side-only password strength analyser and crack time estimation tool.
YAML to TOMLParse and convert YAML to TOML.
JSON to TOMLParse and convert JSON to TOML.
TOML to YAMLParse and convert TOML to YAML.
TOML to JSONParse and convert TOML to JSON.
JSON to CSVConvert JSON to CSV with automatic header detection.
Camera recorderTake a picture or record a video from your webcam or camera.
List converterThis tool can process column-based data and apply various changes (transpose, add prefix and suffix, reverse list, sort list, lowercase values, truncate values) to each row.
Phone parser and formatterParse, validate and format phone numbers. Get information about the phone number, like the country code, type, etc.
JSON diffCompare two JSON objects and get the differences between them.
IPv4 range expanderGiven a start and an end IPv4 address, this tool calculates a valid IPv4 subnet along with its CIDR notation.
HTTP status codesThe list of all HTTP status codes, their name, and their meaning.
YAML to JSON converterSimply convert YAML to JSON with this online live converter.
JSON to YAML converterSimply convert JSON to YAML with this online live converter.
IPv6 ULA generatorGenerate your own local, non-routable IP addresses for your network according to RFC4193.
IPv4 address converterConvert an IP address into decimal, binary, hexadecimal, or even an IPv6 representation of it.
Benchmark builderEasily compare execution time of tasks with this very simple online benchmark builder.
User-agent parserDetect and parse Browser, Engine, OS, CPU, and Device type/model from an user-agent string.
IPv4 subnet calculatorParse your IPv4 CIDR blocks and get all the info you need about your subnet.
Docker run to Docker compose converterTransforms "docker run" commands into docker-compose files!
HTML WYSIWYG editorOnline, feature-rich WYSIWYG HTML editor which generates the source code of the content immediately.
RSA key pair generatorGenerate a new random RSA private and public pem certificate key pair.
Text to NATO alphabetTransform text into the NATO phonetic alphabet for oral transmission.
Slugify stringMake a string url, filename and id safe.
Keycode infoFind the javascript keycode, code, location and modifiers of any pressed key.
JSON minifyMinify and compress your JSON by removing unnecessary whitespace.
BcryptHash and compare text string using bcrypt. Bcrypt is a password-hashing function based on the Blowfish cipher.
BIP39 passphrase generatorGenerate a BIP39 passphrase from an existing or random mnemonic, or get the mnemonic from the passphrase.
Case converterTransform the case of a string and choose between different formats
Chmod calculatorCompute your chmod permissions and commands with this online chmod calculator.
ChronometerMonitor the duration of a thing. Basically a chronometer with simple chronometer features.
Color converterConvert color between the different formats (hex, rgb, hsl and css name)
Crontab generatorValidate and generate crontab and get the human-readable description of the cron schedule.
Date-time converterConvert date and time into the various different formats
Device informationGet information about your current device (screen size, pixel-ratio, user agent, ...)
Encrypt / decrypt textEncrypt clear text and decrypt ciphertext using crypto algorithms like AES, TripleDES, Rabbit or RC4.
ETA calculatorAn ETA (Estimated Time of Arrival) calculator to determine the approximate end time of a task, for example, the end time and duration of a file download.
Percentage calculatorEasily calculate percentages from a value to another value, or from a percentage to a value.
Git cheatsheetGit is a decentralized version management software. With this cheatsheet, you will have quick access to the most common git commands.
Hash textHash a text string using the function you need : MD5, SHA1, SHA256, SHA224, SHA512, SHA384, SHA3 or RIPEMD160
Hmac generatorComputes a hash-based message authentication code (HMAC) using a secret key and your favorite hashing function.
Escape HTML entitiesEscape or unescape HTML entities (replace characters like <,>, &, " and \' with their HTML version)
Integer base converterConvert a number between different bases (decimal, hexadecimal, binary, octal, base64, ...)
JSON prettify and formatPrettify your JSON string into a friendly, human-readable format.
JWT parserParse and decode your JSON Web Token (jwt) and display its content.
Lorem ipsum generatorLorem ipsum is a placeholder text commonly used to demonstrate the visual form of a document or a typeface without relying on meaningful content
Math evaluatorA calculator for evaluating mathematical expressions. You can use functions like sqrt, cos, sin, abs, etc.
Open graph meta generatorGenerate open-graph and socials HTML meta tags for your website.
MIME typesConvert MIME types to file extensions and vice-versa.
OTP code generatorGenerate and validate time-based OTP (one time password) for multi-factor authentication.
QR Code generatorGenerate and download a QR code for a URL (or just plain text), and customize the background and foreground colors.
WiFi QR Code generatorGenerate and download QR codes for quick connections to WiFi networks.
Random port generatorGenerate random port numbers outside of the range of "known" ports (0-1023).
Roman numeral converterConvert Roman numerals to numbers and convert numbers to Roman numerals.
SQL prettify and formatFormat and prettify your SQL queries online (it supports various SQL dialects).
SVG placeholder generatorGenerate svg images to use as a placeholder in your applications.
Temperature converterDegrees temperature conversions for Kelvin, Celsius, Fahrenheit, Rankine, Delisle, Newton, Réaumur, and Rømer.
Text statisticsGet information about a text, the number of characters, the number of words, its size in bytes, ...
Générateur de tokenGénère une chaîne aléatoire avec les caractères que vous voulez, lettres majuscules ou minuscules, chiffres et/ou symboles.
Encode/decode URL-formatted stringsEncode text to URL-encoded format (also known as "percent-encoded"), or decode from it.
URL parserParse a URL into its separate constituent parts (protocol, origin, params, port, username-password, ...)
UUIDs generatorA Universally Unique Identifier (UUID) is a 128-bit number used to identify information in computer systems. The number of possible UUIDs is 16^32, which is 2^128 or about 3.4x10^38 (which is a lot!).
MAC address lookupFind the vendor and manufacturer of a device by its MAC address.
XML formatterPrettify your XML string into a friendly, human-readable format.
YAML prettify and formatPrettify your YAML string into a friendly, human-readable format.