Input is parsed without making a network request; components and risky assumptions are separated.
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Data & developer
HTML Entity Encoder / Decoder
Transforms ampersands, angle brackets, quotes, and numeric Unicode entities in-browser. Decoding returns text and never executes HTML. Encoding alone is not context-aware XSS protection.
✓ Free✓ No account✓ In-browser
QUICK ANSWER
What does this tool do?
Encode HTML special characters as entities or decode them to text.
APPLICATION AND DECISION GUIDE
HTML Entity Encoder / Decoder: method and usage
Transforms ampersands, angle brackets, quotes, and numeric Unicode entities in-browser. Decoding returns text and never executes HTML. Encoding alone is not context-aware XSS protection.
the URL, HTTP headers, cURL command, API definition, or web configuration requested by the tool Confirm the shape first with a small example containing no personal data.
normalized web configuration, a component inventory, and actionable review notes
Practical steps
- Enter text and choose encode or decode.
- Run the conversion and compare character counts.
- Use context-appropriate automatic escaping in production templates.
comparison with the current standard and real server behavior in an authorized test environment
Verify schema, encoding, and data-loss assumptions in the target system.
Suitable use cases
- Displaying code inside HTML
- Reading entity-encoded content
- Pre-checking template escaping
LEARN THE WORKFLOW
Guides for this tool
Safely Converting YAML, XML, JSON, and CSV in the Browser
A parsing, flattening, deduplication, and schema-validation workflow that avoids silent data loss.
Read guide →Reliable Scheduling with Cron and Unix Time
Prevent time zones, DST, field order, and second-vs-millisecond mistakes from breaking scheduled jobs.
Read guide →ABOUT THIS TOOL
Frequently asked questions
What input does HTML Entity Encoder / Decoder accept?+
the URL, HTTP headers, cURL command, API definition, or web configuration requested by the tool Enter text and choose encode or decode.
What does HTML Entity Encoder / Decoder return?+
normalized web configuration, a component inventory, and actionable review notes Input is parsed without making a network request; components and risky assumptions are separated.
How should I validate HTML Entity Encoder / Decoder output?+
comparison with the current standard and real server behavior in an authorized test environment
Does HTML Entity Encoder / Decoder send or store input on a server?+
Tool input is processed in the active tab. Saving to the Workstation or transferring to another tool is a separate choice. Consider browser extensions and shared devices separately; the privacy page explains advertising and network connections.