Can I use
?

Web SQL Database

- UNOFF

Method of storing data client-side, allows SQLite database queries for access and manipulation.

Chrome

  1. 4 - 104: Supported
  2. 105 - 106: Supported
  3. 107: Supported
  4. 108 - 110: Supported

Edge

  1. 12 - 18: Not supported
  2. 79 - 104: Supported
  3. 105 - 106: Supported
  4. 107: Supported

Safari

  1. 3.1 - 12.1: Supported
  2. 13 - 16.0: Not supported
  3. 16.1: Not supported
  4. 16.2 - TP: Not supported

Firefox

  1. 2 - 106: Not supported
  2. 107: Not supported
  3. 108 - 109: Not supported

Opera

  1. 9 - 10.1: Not supported
  2. 10.5 - 90: Supported
  3. 91: Supported
  4. 92: Supported

IE

  1. 5.5 - 10: Not supported
  2. 11: Not supported

Chrome for Android

  1. 107: Supported

Safari on iOS

  1. 3.2 - 12.5: Supported
  2. 13 - 16.0: Not supported
  3. 16.1: Not supported

Samsung Internet

  1. 4 - 18.0: Supported
  2. 19.0: Supported

Opera Mini

  1. all: Not supported

Opera Mobile

  1. 10: Not supported
  2. 11 - 12.1: Supported
  3. 72: Supported

UC Browser for Android

  1. 13.4: Supported

Android Browser

  1. 2.1 - 4.4.4: Supported
  2. 107: Supported

Firefox for Android

  1. 106: Not supported

QQ Browser

  1. 13.1: Supported

Baidu Browser

  1. 13.18: Supported

KaiOS Browser

  1. 2.5: Not supported

The Web SQL Database specification is no longer being maintained and support intended to be dropped in future versions. Migrate to e.g. Web Storage or IndexedDB.

Resources:
Chrome platform status: Deprecate and remove WebSQL in non-secure contexts
HTML5 Doctor article
has.js test