IT Tools - Handy online tools for developers

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!).

ULID generatorGenerate random Universally Unique Lexicographically Sortable Identifier (ULID).

Encrypt / decrypt textEncrypt and decrypt text clear text using crypto algorithm like AES, TripleDES, Rabbit or RC4.

BIP39 passphrase generatorGenerate BIP39 passphrase from existing or random mnemonic, or get the mnemonic from the passphrase.

Hmac generatorComputes a hash-based message authentication code (HMAC) using a secret key and your favorite hashing function.

RSA key pair generatorGenerate new random RSA private and public key pem certificates.

Password strength analyserDiscover the strength of your password with this client side only password strength analyser and crack time estimation tool.

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.

Date-time converterConvert date and time into the various different formats

Integer base converterConvert number between different bases (decimal, hexadecimal, binary, octal, base64, ...)

Roman numeral converterConvert Roman numerals to numbers and convert numbers to Roman numerals.

Base64 string encoder/decoderSimply encode and decode string into a their base64 representation.

Base64 file converterConvert string, files or images into a it's base64 representation.

Color converterConvert color between the different formats (hex, rgb, hsl and css name)

Case converterChange the case of a string and chose between different formats

Text to NATO alphabetTransform text into NATO phonetic alphabet for oral transmission.

Text to ASCII binaryConvert text to its ASCII binary representation and vice versa.

YAML to JSON converterSimply convert YAML to JSON with this live online converter.

YAML to TOMLParse and convert YAML to TOML.

JSON to YAML converterSimply convert JSON to YAML with this live online converter.

JSON to TOMLParse and convert JSON to TOML.

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.

TOML to JSONParse and convert TOML to JSON.

TOML to YAMLParse and convert TOML to YAML.

Encode/decode url formatted stringsEncode to url-encoded format (also known as "percent-encoded") or decode from it.

Escape html entitiesEscape or unescape html entities (replace <,>, &, " and ' to their html version)

Url parserParse an url string to get all the different parts (protocol, origin, params, port, username-password, ...)

Device informationGet information about your current device (screen size, pixel-ratio, user agent, ...)

Basic auth generatorGenerate a base64 basic auth header from an username and a password.

Open graph meta generatorGenerate open-graph and socials html meta tags for your website.

OTP code generatorGenerate and validate time-based OTP (one time password) for multi-factor authentication.

Mime typesConvert mime types to extensions and vice-versa.

JWT parserParse and decode your JSON Web Token (jwt) and display its content.

Keycode infoFind the javascript keycode, code, location and modifiers of any pressed key.

Slugify stringMake a string url, filename and id safe.

HTML WYSIWYG editorOnline HTML editor with feature-rich WYSIWYG editor, get the source code of the content immediately.

User-agent parserDetect and parse Browser, Engine, OS, CPU, and Device type/model from an user-agent string.

HTTP status codesThe list of all HTTP status codes their name and their meaning.

JSON diffCompare two JSON objects and get the differences between them.

QR Code generatorGenerate and download QR-code for an url or just a text and customize the background and foreground colors.

WiFi QR Code generatorGenerate and download QR-codes for quick connections to WiFi networks.

SVG placeholder generatorGenerate svg images to use as placeholder in your applications.

Camera recorderTake a picture or record a video from your webcam or camera.

Git cheatsheetGit is a decentralized version management software. With this cheatsheet you will have a quick access to the most common git commands.

Random port generatorGenerate random port numbers outside of the range of "known" ports (0-1023).

Crontab generatorValidate and generate crontab and get the human readable description of the cron schedule.

JSON prettify and formatPrettify your JSON string to a human friendly readable format.

JSON minifyMinify and compress your JSON by removing unnecessary white spaces.

JSON to CSVConvert JSON to CSV with automatic header detection.

SQL prettify and formatFormat and prettify your SQL queries online (it supports various SQL dialects).

Chmod calculatorCompute your chmod permissions and commands with this online chmod calculator.

Docker run to Docker compose converterTurns docker run commands into docker-compose files!

XML formatterPrettify your XML string to a human friendly readable format.

IPv4 subnet calculatorParse your IPv4 CIDR blocks and get all the info you need about your sub network.

Ipv4 address converterConvert an ip address into decimal, binary, hexadecimal or event in ipv6

IPv4 range expanderGiven a start and an end IPv4 address this tool calculates a valid IPv4 network with its CIDR notation.

MAC address lookupFind the vendor and manufacturer of a device by its MAC address.

MAC address generatorEnter the quantity and prefix. MAC addresses will be generated in your chosen case (uppercase or lowercase)

IPv6 ULA generatorGenerate your own local, non-routable IP addresses on your network according to RFC4193.

Math evaluatorA calculator for evaluating mathematical expressions. You can use functions like sqrt, cos, sin, abs, etc.

ETA calculatorAn ETA (Estimated Time of Arrival) calculator to know the approximate end time of a task, for example the moment of ending of a download.

Percentage calculatorEasily calculate percentages from a value to another value, or from a percentage to a value.

ChronometerMonitor the duration of a thing. Basically a chronometer with simple chronometer features.

Temperature converterTemperature degrees conversions for Kelvin, Celsius, Fahrenheit, Rankine, Delisle, Newton, Réaumur and Rømer.

Benchmark builderEasily compare execution time of tasks with this very simple online benchmark builder.

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

Text statisticsGet information about a text, the amount of characters, the amount of words, it's size, ...

Emoji pickerCopy and paste emojis easily and get the unicode and code points value of each emoji.

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.

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.

Phone parser and formatterParse, validate and format phone numbers. Get information about the phone number, like the country code, type, etc.

IBAN validator and parserValidate and parse IBAN numbers. Check if IBAN is valid and get the country, BBAN, if it is a QR-IBAN and the IBAN friendly format.