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Credit Card Generator
Generate valid test credit card numbers for development and testing. All numbers pass Luhn validation.
Credit Card Validator
Validate credit card numbers using the Luhn algorithm. Auto-detects card type including Visa, Mastercard, Amex, and Discover.
VTT to SRT Converter
Convert WebVTT subtitle files to SRT format. Handles timestamps, removes style blocks, and numbers cues sequentially.