https://github.com/emnudge/unicode-lookup

The web's best unicode lookup tool!
https://github.com/emnudge/unicode-lookup

codepoint lookup unicode utf

Last synced: 6 months ago
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The web's best unicode lookup tool!

• Host: GitHub
• URL: https://github.com/emnudge/unicode-lookup
• Owner: EmNudge
• License: mit
• Created: 2020-06-15T06:48:05.000Z (over 5 years ago)
• Default Branch: main
• Last Pushed: 2025-04-04T14:22:35.000Z (6 months ago)
• Last Synced: 2025-04-07T12:51:17.336Z (6 months ago)
• Topics: codepoint, lookup, unicode, utf
• Language: Svelte
• Homepage: https://unicode.emnudge.dev
• Size: 1.36 MB
• Stars: 62
• Watchers: 4
• Forks: 4
• Open Issues: 3
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.md

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README

          
# Unicode Lookup

This is a web app to quickly look up unicode names from hex codes.

I've recently been using unicode lookup tools a lot during research and I found some to be lacking, buggy, or slow.

It turns out that it's super easy to use web workers and a massive text file to make the entire application static and super quick.

That's what this is.

A quick, easy, static unicode lookup web app.

Try it at http://unicode.emnudge.dev/

![tool](https://github.com/EmNudge/unicode-lookup/assets/24513691/3d0a3cff-7bc9-465c-9a6f-c6d86d434634)

# How To Use

Right click the info icon to copy it to your clipboard.

Left click a row to bring up the info view.

Currently there is "Simple Search" and "Advanced Search".

For *Simple Search*, it accepts:

- character to find (simply type in a single character)

- text to match against description

- regex to match against *character* (in form `/regex/flags`)

- glob pattern match against *names* (in form `latin * a`)

- codepoint of character

  - decimal form

  - hexidecimal form (in form `0x[number]` or `U+[number]` e.g. `0xfab23` or `U+fab23`)

  - binary form (in form `0b[number]` e.g. `0b1101110`)

- codepoint range (in form `num1-num2`, where `num1` and `num2` are in dec, hex, or bin form)

*Advanced Search* is a bit more... advanced.

It allows us to create a series of filters, called "rules". These rules can be of 2 types:

- **Require**

  - requires codepoint to match any of N filters.

  - can chain multiple with the `OR` button.

- **Exclude**

  - requires codepoint to NOT match a specific filter.

The following example excludes characters in the BMP and then requires the character to either have the unicode property XID_Start or the property White_Space:

![advanced search](https://user-images.githubusercontent.com/24513691/106977581-9d479900-6728-11eb-8e76-b152552ea71d.jpg)

*Simple Search* will execute while we type. *Advanced Search* will only execute once pressing the `Search` button. 

*Simple Search* will also execute if we press enter focusing the box.

### Known Bugs/Limitations

- Safari does not support any regex unicode property where `Script` equals one of `"Chorasmian"`, `"Dives_Akuru"`, `"Elymaic"`, `"Khitan_Small_Script"`, `"Nandinagari"`, `"Nyiakeng_Puachue_Hmong"`, `"Wancho"`, or `"Yezidi"`.

  - e.g. `/\p{Script=Wancho}/u` will throw an error on Safari and is therefore not supported on that browser.

- Anything typed into simple search before all unicode data has loaded will not be searched, even after the unicode data has loaded.

  - Pressing enter while in the text box will perform a search after loading is complete.