Free online tools
Encoding Toolkit
Encode and decode URL, Base64, HTML, and Unicode values from one tool.
Use the tool
Runs instantly in your browser. No upload needed.
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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.
What should I verify before I paste the Encoding Toolkit output into another system?
Readable output is not the same as correct output.
Does readable output from Encoding Toolkit mean the data is correct?
A visible before-and-after state reduces silent mistakes such as dropped fields, broken quoting, escaped twice values, or row misalignment.