thaitools.techPractical tools for life in Thailand
English interface

HTML entity encoder and decoder

Encode or decode five canonical HTML character references locally.

ReviewedLow-impact
Saves this tool's name on this device only (up to 20). No form values.
Only visible result text is included. Form fields are not read. Review sensitive values before sharing.

Supports &, <, >, double quote and apostrophe. It does not parse or execute HTML.

Enter values, then process to see the result.

How to use it

  1. Choose encode or decode.
  2. Enter plain or referenced text.
  3. Process and review one transformation layer.

Important limitation

Text transformation only; not an HTML sanitizer, parser or XSS safety check.

The interactive form is fully localized in English.

Reviewed 2026-09-09; next review 2027-09-09.

Core calculations, cited sources and main test cases have been reviewed within the stated scope.

Sources

HTML Standard — Character referencesWHATWG · opens in a new tabSupports the method and scope stated on the tool page; consult the source for case-specific rules.Source checked 2026-09-11
Traceable review record

Review history

Site changelog

This is the recorded review history available in the repository, not an inferred release history. Dates are added only when evidence is recorded.

  1. Current review snapshot recorded

    Core calculations, cited sources and main test cases have been reviewed within the stated scope.

    Method version: review-2026-09-09

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