Can I use
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Web SQL Database

- UNOFF

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

Chrome

  1. ✅ 4 - 100: Supported
  2. ✅ 101 - 109: Supported
  3. ✅ 110 - 118: Supported
  4. ✅ 119 - 123: Supported
  5. ❌ 124 - 131: Not supported
  6. ❌ 132: Not supported
  7. ❌ 133 - 135: Not supported

Edge

  1. ❌ 12 - 18: Not supported
  2. ✅ 79 - 100: Supported
  3. ✅ 101 - 109: Supported
  4. ✅ 110 - 123: Supported
  5. ❌ 124 - 131: Not supported
  6. ❌ 132: Not supported

Safari

  1. ✅ 3.1 - 12.1: Supported
  2. ❌ 13 - 18.1: Not supported
  3. ❌ 18.2: Not supported
  4. ❌ 18.3 - TP: Not supported

Firefox

  1. ❌ 2 - 133: Not supported
  2. ❌ 134: Not supported
  3. ❌ 135 - 137: Not supported

Opera

  1. ❌ 9 - 10.1: Not supported
  2. ✅ 10.5 - 90: Supported
  3. ✅ 91 - 109: Supported
  4. ❌ 110 - 113: Not supported
  5. ❌ 114: Not supported

IE

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

Chrome for Android

  1. ❌ 131: Not supported

Safari on iOS

  1. ✅ 3.2 - 12.5: Supported
  2. ❌ 13 - 18.1: Not supported
  3. ❌ 18.2: Not supported
  4. ❌ 18.3: Not supported

Samsung Internet

  1. ✅ 4 - 26: Supported
  2. ✅ 27: Supported

Opera Mini

  1. ❌ all: Not supported

Opera Mobile

  1. ❌ 10: Not supported
  2. ✅ 11 - 12.1: Supported
  3. ✅ 80: Supported

UC Browser for Android

  1. ✅ 15.5: Supported

Android Browser

  1. ✅ 2.1 - 4.4.4: Supported
  2. ❌ 131: Not supported

Firefox for Android

  1. ❌ 132: Not supported

QQ Browser

  1. ✅ 14.9: Supported

Baidu Browser

  1. ✅ 13.52: Supported

KaiOS Browser

  1. ❌ 2.5: Not supported
  2. ❌ 3: Not supported

The Web SQL Database specification is no longer being maintained and support is 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