HTML Entity Escaper for Three Characters
Escapes or unescapes the HTML entities for ampersand, less-than, and greater-than signs. It does not implement CSS.escape or CSS identifier escaping.
About this html entity escaper for three characters
Escapes or unescapes the HTML entities for ampersand, less-than, and greater-than signs. It does not implement CSS.escape or CSS identifier escaping Runs entirely in-memory using Web Crypto primitives to keep sensitive tokens, certificates, and cryptographic keys secure from third-party interception.
Encoding & cryptographic principles
Encode replaces &, <, and > with HTML named entities. Decode reverses exactly five lowercase named entities: amp, lt, gt, quot, and apos. This does not implement CSS.escape().
Worked verification example
Scenario: Observe the page's encode replacement path for a short ampersand-containing string.
Sample input:
Processing: With the second mode field omitted, replace ampersand, less-than and greater-than characters; this is not CSS.escape().
Illustrative output:
Security parameters & input constraints
Despite its name, this converts a small set of HTML-style named entities, not CSS identifiers or CSS.escape(). Encoding handles only &, <, and >; decoding recognizes only lowercase &, <, >, ", and ' with semicolons. Unknown and numeric entities remain unchanged.
Cryptographic digests, encoded strings, and signatures generated by HTML Entity Escaper for Three Characters should be verified against target authentication systems before production use.
Client-side Web Crypto boundary
Key derivation, hashing, and encoding in HTML Entity Escaper for Three Characters execute in local memory using Web Crypto APIs without remote socket transmission.
Cryptographic specifications & RFC standards
Technical specifications and cryptographic RFC standards governing algorithms and key representations:
HTML Entity Escaper for Three Characters verification · Audit standards
How to use it
- Enter the text to convert in the input box.
- Leave the second input as encode to replace &, <, and >, or enter decode to reverse five named entities; then run locally.
- Read or copy the converted text.
Frequently asked questions
How does CSS Entity Escaper transform text?+
The second text field selects mode by containing decode or unescape, case-insensitively. Decode replaces lowercase &, <, >, ", and ' when written with semicolons; otherwise encode replaces only &, <, and >. Numeric and unknown entities are unchanged.
What result should the documented example produce?+
Encoding CZOA & tools produced CZOA & tools in the current output.
Does this produce a CSS parser guarantee?+
No. The observed output is entity replacement behavior, not proof that arbitrary CSS context is syntactically valid.
How is decode selected?+
The mode text containing decode or unescape takes the reverse replacement branch.