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TOOLBOX – ZIP /POSTAL CODES

Edge Case Matrix Generator.

Zip / Postal Codes

Generate boundary value and edge case test data for zip and postal code fields. US ZIP+4, UK postcodes, Singapore 6-digit codes, Canadian FSA formats … and all the ways users worldwide will creatively mistype them into your form.

Zip / Postal Codes Test Data Generator โ€” BorderlineData
Navigate to Data Type
๐Ÿ”ค Names / Text ๐Ÿ“ฑ Phone Numbers ๐Ÿ“… Dates ๐Ÿ”ข Integers ๐Ÿ’ฐ Currency ๐Ÿ“ง Email ๐Ÿ“Ž File Upload ๐Ÿ” Passwords ๐Ÿ“ฎ Postal Codes ๐ŸŽ‚ Age ๐Ÿ’ณ Credit Cards ๐Ÿ• Time ๐Ÿ“š ISBN / Barcodes ๐Ÿฆ SWIFT / BIC ๐Ÿš— License Plates โ†”๏ธ Custom Range
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Get your data at the Borderline.

It’s time to get serious and test your systems robustly with edge data, boundary data and negative data.

Let's go โ†’

About Us

BorderlineData was built by a seasoned software testing professional with one goal: to help the industry ship more robust, resilient systems by making edge-case thinking effortless. Free, fast, and proudly made for the testing community.

Privacy & Data

Your data stays where it belongs, on your machine. BorderlineData runs entirely in your browser: no accounts, no test inputs phoned home to a server. Clear your browser storage, and we forget you ever existed. Which, frankly, is more than most apps can promise. Read our Privacy Policyย here.

Disclaimer

Use at your own risk… and your developers’ mild despair. BorderlineData generates suggested test inputs. It does not guarantee bug-free software or world peace. Always review generated data before unleashing it on your systems. We are not liable for broken builds or awkward demos.

Copyright ยฉ 2026 BorderlineData

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