Developer & Test Data Tools
35 free generators, no sign-up needed.Developers spend a surprising amount of time inventing plausible data. Card numbers that pass a Luhn check, passwords that satisfy a policy, UUIDs, hashes of a known string, IMEI and VIN numbers that look right to a validator. This category collects the tools that produce that data in one click.
Everything generated here is synthetic. Card numbers are not linked to real accounts and will not authorise a payment; they exist so you can test what happens when someone types a valid-looking Visa number into your form. Treat the outputs as fixtures, not as anything with real-world value.
Developer Utilities
Random Email GeneratorGenerate 1 to 15 random fake email addresses at gmail.com, outlook.com, hotmail.com, yahoo.com, live.com or…
Encryption Key GeneratorGenerate 1 to 10 random 256-bit encryption keys as 64-character hex strings, made in your browser from secure…
Random IP GeneratorGenerate 1 to 15 random IPv4 or IPv6 addresses. Pick one of 55 countries to draw from a registered block, or…
Random QR Code GeneratorType any text or URL and get a scannable QR code instantly, or leave the box empty for a ready-made test…
Random String GeneratorGenerate 1 to 15 random strings of 1 to 100 characters. Choose any mix of lowercase, uppercase, digits and…
Random Code GeneratorGenerate up to 15 random alphanumeric codes of 1 to 100 characters. Default is five 8-character codes from…
Random MAC Address GeneratorGenerate a random 48-bit MAC address in colon-separated hex (aa:bb:cc:dd:ee:ff) with one click. Free test…
Random API Key GeneratorGenerate 1 to 10 random API keys or tokens of any length from 1 to 100 characters, choosing lowercase,…
Random User Agent GeneratorGenerate 1 to 5 real user agent strings sampled by browser market share: Chrome on Android and Windows,…
Random Port GeneratorDraw 1 to 10 random port numbers from 58 well-known and registered ports, each labeled with its service: 22…
CSS Clip Path GeneratorClick for a ready-made CSS clip-path value for one of 24 shapes (triangle, hexagon, star, chevron, ellipse),…
Random DNA Sequence GeneratorGenerate a random DNA sequence of A, T, C and G at any length from 1 to 1,000,000 bases, as test data for…
Random UUID GeneratorGenerate 1 to 10 random version 4 UUIDs at a time, each a 36-character identifier with 122 random bits, with…
Random JSON Generator | Create Mock Data EasilyGet a random sample JSON object with nested fields (id, name, is_active, date_joined, score, preferences,…
Passwords & Hashes
Memorable Password GeneratorBuilds an easy to remember password from two adjectives, an animal, a verb and a number, like…
MD5 Hash GeneratorPaste any text and get its 32-character MD5 hash, computed in your browser. Optionally append a salt (a…
Pronounceable Password GeneratorGenerate batches of pronounceable passwords from 4 to 40 characters. Each mixes consonants and vowels with…
Base64 GeneratorPaste any text and get its Base64 encoding, or paste a Base64 string and decode it back. UTF-8 aware, runs in…
Random Password GeneratorGenerate a random password of 1 to 100 characters from the character classes you tick: lowercase, uppercase,…
SHA2 Hash GeneratorCompute the SHA-224 hash (SHA-2 family) of any text in your browser, with an optional salt appended before…
SHA1 Hash GeneratorCompute the SHA-1 hash of any text in your browser, with an optional salt appended before hashing. Returns a…
SHA256 Hash GeneratorCompute the SHA-256 hash of any text in your browser, with an optional salt appended before hashing. Returns…
SHA512 Hash GeneratorPaste any text and get its SHA-512 hash as a 128-character hex string, optionally with a salt appended. Runs…
WordPress Password Hash GeneratorTurn a plain password into the $P$B phpass hash WordPress stores in wp_users.user_pass, so you can reset an…
Cards & Banking Test Data
Bank Account Number GeneratorGenerate 1 to 10 random 10-digit account numbers for test databases, form validation and mock statements. Not…
Cash App Fee CalculatorEstimate the Cash App fee on any amount: 1.5% for instant transfers, 3% for credit card sends, free for…
Bank Routing Number GeneratorGenerate 1 to 10 random nine-digit routing numbers in the ABA layout for form testing, demos and sample data.…
Debit Card GeneratorGenerate a fake debit card for testing: a Luhn-valid number with the right prefix and length for Visa,…
RuPay Credit Card GeneratorGenerate a fake 16-digit RuPay card number that passes the Luhn check, with a random name, CVV, expiry date…
Random Credit Card GeneratorGenerate a Luhn-valid test credit card number for Visa, Mastercard, Amex, UnionPay, RuPay and 27 other…
ID & Serial Numbers
Random License Plate GeneratorGenerate 1 to 15 fake US plate numbers in the letter-and-digit pattern of any of the 50 states, or a random…
USPS Tracking Number GeneratorGenerate up to 10 fake USPS-style tracking numbers in the 13-character format, e.g. RA123456789US, with your…
CPF GeneratorGenerate 1 to 10 random Brazilian CPF numbers that pass the official check-digit validation, with or without…
Random IMEI Number GeneratorGenerate 1 to 10 random 15-digit IMEI numbers with a correct Luhn check digit and copy each with a click.…
Random VIN Number GeneratorGenerate 1 to 10 random 17-character VINs for test data. Standard character set with no I, O or Q, one-click…