Free online utility tools that run in your browser

JSON Formatter

Format, beautify, and validate JSON data

XML Formatter

Format, validate, and beautify XML data

UUID4 Generator

Generate random UUIDs

UUID3 Generator

Generate name-based UUIDs using MD5 hashing

UUID1 Generator

Generate time-based UUIDs with MAC address

UUID5 Generator

Generate name-based UUIDs using SHA-1 hashing

UUID6 Generator

Generate time-ordered UUIDs (reordered v1)

UUID7 Generator

Generate time-ordered UUIDs with random data

SSN Generator

Generate US Social Security Numbers for testing

CPF Generator

Generate Brazilian CPF numbers for testing

CNPJ Generator

Generate Brazilian CNPJ numbers for testing

Passport Generator

Generate US passport numbers for testing

EIN Generator

Generate US Employer Identification Numbers

ITIN Generator

Generate US Individual Taxpayer ID Numbers

SIN Generator

Generate Canadian Social Insurance Numbers for testing

NIF Generator

Generate Portuguese Tax Identification Numbers for testing

IMEI Generator

Generate valid IMEI numbers for testing

Credit Card Generator

Generate valid credit card numbers for testing

PKCE Generator

Generate OAuth 2.0 PKCE code_verifier and code_challenge pairs for secure authorization flows

TOTP Generator

Generate live TOTP / 2FA codes from any Base32 secret or otpauth URI

Password Generator

Generate secure, random passwords

MD5 Generator

Generate MD5 hashes for text and files with verification support

SHA-256 Generator

Generate secure SHA-256 hashes for text and files

SHA-512 Generator

Generate SHA-512 hashes for maximum security

Routing Number Generator

Generate US ABA routing numbers

QR Code Generator

Generate QR codes for text, URLs, and data

Barcode Generator

Generate various barcode formats for products and inventory

Fancy Text Generator

Transform text into fancy Unicode styles for social media

Upside Down Text Generator

Flip your text upside down with Unicode characters

Lorem Ipsum Generator

Generate customizable Lorem Ipsum placeholder text

Compound Interest Calculator

Calculate compound interest and investment projections

Retirement Calculator

Calculate how much you need to retire based on your income and savings goals

Hours Calculator

Add and subtract hours and minutes to calculate time differences

How Long Have I Been Alive Calculator

Find out exactly how many days, hours, minutes, and seconds you have been alive — plus your age in years and a countdown to your next birthday

PC Gaming Cost Calculator

Calculate the true cost per hour of your gaming setup and compare it to other entertainment

Volume Calculator

Calculate volumes for cubes, spheres, cylinders, cones, and more

Resistor Color Code Calculator

Decode resistor color bands or find the color code for any resistance value

CIDR / Subnet Calculator

Calculate subnet details from CIDR notation — network address, broadcast, host range, and more

JSON ↔ YAML Converter

Convert between JSON and YAML formats instantly

Base64 Encoder/Decoder

Encode and decode Base64 text and files instantly

Image to PDF Converter

Convert images (PNG, JPEG, GIF, BMP, WebP) to PDF documents

Unix Timestamp Converter

Convert between Unix timestamp and human-readable date/time

Text to Slug Converter

Convert text into URL-friendly slugs instantly

URL Encoder/Decoder

Encode and decode URLs with percent-encoding

Temperature Converter

Convert between Celsius, Fahrenheit, and Kelvin instantly

Image Metadata Remover

Remove EXIF, XMP, ICC, IPTC, and comments from images

ISBN Validator

Validate and convert ISBN-10 and ISBN-13 book identifiers

CPF Validator

Validate Brazilian CPF numbers and identify issuing state

CNPJ Validator

Validate Brazilian CNPJ numbers (numeric & alphanumeric)

ITIN Validator

Validate US Individual Taxpayer Identification Numbers

EIN Validator

Validate US Employer Identification Numbers

SIN Validator

Validate Canadian Social Insurance Numbers

DNI / NIE Validator

Validate Spanish DNI and NIE identification numbers

NIF Validator

Validate Portuguese NIF tax identification numbers

Location Detector

Detect and display your current geographic location

Screen Resolution Checker

Check your screen resolution, viewport size, pixel ratio, and display details

Word Counter

Count words, characters, sentences, and calculate reading time with real-time text analysis

ULID Generator

Generate time-sortable, URL-safe ULIDs

NanoID Generator

Generate URL-safe NanoIDs with custom alphabet and length

DNI Generator

Generate valid Spanish DNI numbers for testing

RFC Generator

Generate valid Mexican RFC numbers for testing (personal and business)

CURP Generator

Generate valid Mexican CURP numbers for testing

RUT Generator

Generate valid Chilean RUT numbers for testing

RFC Validator

Validate Mexican RFC tax identification numbers (personal and business)

CURP Validator

Validate Mexican CURP identity numbers and decode their components

RUT Validator

Validate Chilean RUT identification numbers using the Modulo-11 algorithm

Codice Fiscale Generator

Generate valid Italian Codice Fiscale (tax code) numbers for testing

Codice Fiscale Validator

Validate Italian Codice Fiscale numbers and decode their components

German Steuer-ID Generator

Generate valid German Steuer-ID (tax identification number) for testing

German Steuer-ID Validator

Validate German Steuer-ID numbers using the official check digit and digit-pattern rules

Brazilian Inscrição Estadual Generator

Generate valid Brazilian state tax registration (Inscrição Estadual) numbers for testing

Brazilian Inscrição Estadual Validator

Validate Brazilian state tax registration numbers for SP, RJ, MG, RS, PR, BA, and SC

Bitcoin Address Validator

Validate Bitcoin addresses — P2PKH, P2SH, SegWit (bech32), and Taproot (bech32m)

Ethereum Address Validator

Validate Ethereum addresses and verify their EIP-55 mixed-case checksum

ISIN Generator

Generate valid ISIN (International Securities Identification Number) codes for testing

IBAN Generator

Generate valid IBAN (International Bank Account Number) codes for testing, for 68+ countries

ISIN Validator

Validate ISIN securities identification codes using the Luhn check digit algorithm

CUSIP Validator

Validate CUSIP securities identification numbers and verify their check digit

LEI Validator

Validate Legal Entity Identifier (LEI) codes and verify their ISO 7064 mod-97 check digits

SEDOL Validator

Validate SEDOL (Stock Exchange Daily Official List) securities codes and verify their check digit

IBAN Validator

Validate IBAN (International Bank Account Number) codes and verify their ISO 7064 mod-97 check digits

SWIFT/BIC Validator

Validate SWIFT/BIC bank identifier codes and decode the bank, country, location, and branch segments

NPI Generator

Generate valid NPI (National Provider Identifier) numbers for testing US healthcare software

NPI Validator

Validate NPI (National Provider Identifier) numbers using the Luhn check digit algorithm

DEA Number Validator

Validate US DEA registration numbers and verify their check digit

NDC Code Validator

Validate NDC (National Drug Code) numbers and convert between 10-digit and 11-digit normalized formats

Container Number Validator

Validate ISO 6346 shipping container numbers and verify their check digit

IMO Number Validator

Validate IMO ship identification numbers and verify their check digit

MAC Vendor Lookup

Look up the vendor for a MAC address and decode its administration and multicast bits

IATA / ICAO Airport Code Lookup

Look up airport names, cities, and countries by IATA or ICAO code, or search by name or city

ISSN Validator

Validate ISSN periodical serial numbers and verify their check character

ORCID Validator

Validate ORCID researcher iDs and verify their ISO 7064 mod-11-2 check character

ISRC Validator

Validate ISRC music recording codes and decode the country, registrant, and year segments

DOI Validator

Validate Digital Object Identifier (DOI) format and resolve it via doi.org

IPv6 Expander / Compressor

Expand IPv6 addresses to their full 8-group form or compress them to the shortest RFC 5952 form

IP Range to CIDR

Convert an IP address range into the minimum list of CIDR blocks that cover it

KSUID Generator

Generate K-Sortable Unique Identifiers (KSUID) — 27-character base62 IDs with an embedded timestamp

CUID2 Generator

Generate collision-resistant CUID2-style identifiers, 24-32 characters, starting with a letter

DMS ↔ Decimal Degrees Converter

Convert coordinates between degrees-minutes-seconds (DMS) and decimal degrees

VIN Decoder

Decode and validate Vehicle Identification Numbers — manufacturer, country, model year, and check digit

Snowflake Decoder

Decode Discord, Twitter & Instagram Snowflake IDs to timestamps

JSON Diff

Compare two JSON objects and visualize the differences side by side