Free online tools
Postcode Lookup
Open a Korean postcode search flow and capture the selected road or jibun address.
Use the tool
Runs instantly in your browser. No upload needed.
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Other languages
Switch languages without losing this page.
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Open in Korean
Korean version
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Open in Japanese
Japanese version
Frequently asked questions
Does this tool send my input to AsKrs?
Most tool pages run directly in the browser and are designed for quick local work.
What should I check before copying or downloading the result?
Review the preview, file name, format, size, and any warning message first.
How do I avoid carrying the wrong Postcode Lookup value into the next step?
Reference and conversion pages are safest when you compare the returned unit, label, or timestamp with the original question before you copy it forward.
When is Postcode Lookup better than manual lookup or rough conversion?
Open Postcode Lookup when the task is to find, verify, or copy a known reference value rather than transform a file or calculate a scenario.