Amp What

AmpWhat provides lookup and reference for Unicode characters, HTML entities, and symbols with hexadecimal or decimal codes.

amp-what.com
Amp What homepage screenshot

About Amp What

AmpWhat is a web-based reference tool for looking up Unicode characters, HTML entities, and symbols with their corresponding hexadecimal or decimal codes. It supports searching by name or code, copying selected characters directly to the clipboard, and viewing codes in multiple formats including HTML decimal/hex, JSON, CSS, URL encoding, and Windows Alt key combinations. The tool offers a default curated dataset of approximately 40,000 characters, with an optional larger dataset of over 60,000 characters that may reduce loading and search performance, and often displays missing glyphs for characters not supported by local fonts. Advertisements are shown by default, with an ad-free option available for users who support the project via Patreon.

Key features

  • Search Unicode, HTML entities, and symbols by name or code
  • Copy selected characters directly to clipboard
  • Display codes in HTML, CSS, JSON, URL, and Alt formats
  • Default curated dataset of ~40,000 characters
  • Optional large dataset of 60,000+ Unicode characters
  • Ad-free mode for project supporters
Best for: Web developers, content creators, and digital professionals who need to reference or insert special characters, HTML entities, and Unicode symbols for digital projects.
Good for
  • Fast interactive lookup for thousands of characters and symbols
  • Supports multiple common code formats for different use cases
  • Offers optional expanded dataset for broader character reference
Watch out for
  • Large 60,000+ character dataset may slow loading and search speed
  • Many large dataset characters display as missing glyphs locally
  • Default advertisements require Patreon support for ad-free access

Amp What at a glance

Type
Online tool
Pricing
Not confirmed. Check the site
Platforms
Web
Open source
Not stated
Language
English
Last checked
Oct 5, 2026 · Online when checked
Listed
Oct 5, 2026

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Amp What FAQ

What types of characters and codes does AmpWhat support?
It provides reference for Unicode characters, HTML entities, and symbols with hexadecimal or decimal codes, including punctuation, mathematical symbols, icons, Greek letters, and markup-significant characters.
Can I copy characters directly from AmpWhat?
Yes, select a character and click it to copy it to your clipboard.
What is the difference between the default and large character datasets?
The default dataset has ~40,000 curated characters, while the large dataset has over 60,000 characters with Unicode metadata, but may slow performance and show missing glyphs.
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