Free online tools
Keyboard Event Viewer
Inspect key values, key codes, and modifier states from live keyboard events.
Use the tool
Runs instantly in your browser. No upload needed.
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Open in Korean
Korean version
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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.
When should I recheck the source instead of trusting the first Keyboard Event Viewer result?
Treat the first scan, decode, or inspection result as a candidate value until it matches the visible source, label, or symbol you can verify.
What part of the Keyboard Event Viewer result should I carry into the next step?
The result reveals structure, metadata, decoded content, or scan output that helps you choose the right follow-up tool instead of guessing.