Developer's Toolkit
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Most used on DevTools
Test Data Generators
Generate valid test identities, bank accounts and tax numbers for your development and QA environments — no real data involved.
National Identity Generator
Checksum-valid national IDs — TC Kimlik, SSN, Emirates ID, CPF, NRIC and more.
IBAN & SWIFT Generator
Validate, format and generate IBANs plus SWIFT/BIC codes.
Tax Number Generator
Format-valid tax IDs — VKN, EIN, TFN, Steuernummer, VAT, UEN and more.
Browse by category
Every tool runs in your browser — pick a category to dive in, or press ⌘K to search.
Color Tools
Color utilities and generators
Box Shadow Generator · Color Contrast Checker · Color Converter
Data Processing
Format, convert and process data
Base64 Encoder/Decoder · CSV to Chart · CSV to JSON Converter
Text & Analysis
Text processing and analysis tools
Case Converter & Text Formatter · Regex Tester · Regex to Code Generator
Generators
Generate IDs, references and more
Favicon Generator · HTTP Status Code Reference · IBAN & SWIFT Generator
Security Tools
Security analysis and authentication tools
AES Encryption · Basic Auth Generator · Bcrypt Generator & Verifier
Network & API Tools
HTTP clients and network utilities
cURL to Code Converter · DNS Lookup Tool · HTTP Header Parser
Development Utilities
Essential utilities for developers
Chmod Calculator · Cron Expression Builder · CSS/JS Minifier
Visual Tools
Preview and convert visual content
Aspect Ratio Calculator · Barcode Generator · Base64 Image Encoder
Frequently asked questions
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