Online Escape Encoder / Decoder
Escape编码Escape解码unescape%uXXXX
Classic JavaScript escape()/unescape() implementation: alphanumerics and @*_+-./ preserved, others as %XX or %uXXXX, ideal for legacy data compatibility, fully local.
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How to Use
- Paste the raw text into the input box
- Choose encode or decode direction
- Output appears instantly — copy in one click
- All encoding/decoding runs locally; sensitive content never leaves your device
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FAQ
What is Escape encoding?
Escape is a legacy JavaScript encoder: ASCII alphanumerics and @*_+-./ stay as-is, Latin-1 chars become %XX, wide chars like Chinese become %uXXXX, e.g. 你 → %u4F60.
How is it different from URL encoding?
URL encoding emits UTF-8 bytes as %XX; Escape outputs each char directly as %uXXXX without UTF-8 conversion. Results differ but both are decodable here.
Will my data be uploaded?
No, all encoding and decoding runs locally in your browser.