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CheckUser is a username availability checker that searches across more than 70 social networking sites. It reports availability status and confidence signals and offers username suggestions. The tool is free to use and requires no registration or personal information.
Check Usernames is an online tool that helps users work with usernames, digital identities, or related information for research and testing.
social-analyzer is an online tool that helps users work with usernames, digital identities, or related information for research and testing.
SearchPOF.com is an online tool that helps users work with usernames, digital identities, or related information for research and testing.
Lullar Com is an online tool that helps users work with usernames, digital identities, or related information for research and testing.
KnowEm is an online tool that helps users work with usernames, digital identities, or related information for research and testing.
snoop is an online tool that helps users work with usernames, digital identities, or related information for research and testing.
quidam is an online tool that helps users work with usernames, digital identities, or related information for research and testing.
An open source tool for searching usernames across many websites to help with online identity research.
A page for checking a vehicle identification number's characters and check digit, explaining the step-by-step check, reading the model year, and offering sample VINs for testing forms. It describes how a VIN is built, letter values, model year codes, and includes PHP check code.
Helps users create professional resumes with templates and tools for job applications.
Nano ID CC is a collision calculator for Nano ID, a library for generating random IDs. It helps estimate how much an ID length can be reduced, given a chosen alphabet, ID length and generation speed, to keep the probability of at least one duplicate low.
A page from the Fake Name Generator that checks a credit card number's network, length and Luhn check digit. It explains the Luhn check step by step and offers sample made-up numbers for testing forms. The page notes the sample numbers are not accounts and are declined by payment gateways.
Generates fictional Twitter profile examples for testing and creative demonstrations.
Generates unique identifiers using IID format for software projects and technical experiments.
A page from the Fake Name Generator that validates US bank ABA routing numbers, checking the prefix and check digit. It explains the 3-7-1 check step by step and provides sample routing numbers for testing forms. The samples pass the tests but are otherwise random.
Generates random face images for testing, design projects, and sample user profiles.
Creates standard UUIDs and shorter identifiers for developers and digital projects.
A page from the Fake Name Generator that checks whether a US Social Security number follows Social Security Administration numbering rules. It explains how SSNs are built and how numbering changed in 2011, and provides sample SSNs for testing forms. The page notes that numbers following the rules may still never have been issued.
Creates sample YouTube channel profiles with generated names and details.
A tool for generating sample Windows Phone IMEI numbers for testing and development purposes.
A page for checking Canadian social insurance numbers, verifying the first digit and Luhn check digit, showing the step-by-step check, and offering sample SINs for testing forms. It also lists what the first digit means and includes PHP and JavaScript check code.
Creates random company names for startups, stories, and design mockups.
A page by Stephen P. Morse offering a form to encode and decode driver's license numbers. It states that the rules for generating the numbers were figured out and published by Alan De Smet, and credits Fred Apel with suggesting the form.
