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Preview of Sakura - Custom JS & CSS

Sakura - Custom JS & CSS by Gidarai

User script manager that lets you inject your own JavaScript and CSS into websites matching URL patterns you define.

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Extension Metadata

Screenshots
Look of the options UI where the user can add, modify, import/export, enable/disable or delete rules.
About this extension
Sakura lets you inject your own JavaScript and CSS into any website, using rules you define.
Easily create, enable, disable, import, or export your custom scripts.

This extension operates entirely on your device.
All rules, scripts, and settings are stored locally using storage.local.
No data is sent anywhere.

Features:
• Custom JavaScript and CSS per URL pattern
• User-friendly Sakura-themed editor with CodeMirror
• Rule search, enable/disable toggles, and live updates
• Import and export rules as JSON
• No remote requests, no external servers, no telemetry
• All data stays on your device

Sakura is a local developer / power-user tool.
It does not collect, transmit, or analyze any personal data.
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Permissions and data

Required permissions:

  • Access your data for all websites

Data collection:

  • The developer says this extension doesn't require data collection.
Learn more
More information
Version
1.0.0
Size
2.58 MB
Last updated
14 days ago (Dec 2, 2025)
Related Categories
  • Web Development
  • Appearance
License
MIT License
Version History
  • See all versions
Tags
  • dark mode
  • user scripts
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