Halloween Toolbox

Encode, decode, JSON beautify, and on-device AI chat with page and web search. For developers.

As of June 2026, Halloween Toolbox has 11 users in the Developer Tools category.

Usersdown 15.4 percent15.4%
11
11
Ratingno change0%
— reviews
Reviewsno change0%
Version
0.7.0
Manifest V3
90-day change · In the last 90 days this extension 2 version updates, changed permissions.

History

7 snapshots

Tracking since Apr 24, 2026.

17.5613.59.44Apr 24, 2026Jun 6, 2026
View as table
DateUsersRatingReviewsVersion
Apr 24, 2026130.5.0
May 1, 2026170.6.0
May 7, 2026150.6.0
May 12, 2026160.6.0
May 17, 20260.6.0
May 24, 2026150.6.0
Jun 6, 2026100.7.0
Now110.7.0

Changelog

  • May 24, 2026
    description
    This free, open-source Chrome extension offers essential tools for developers to streamline daily tasks, right in the browser. With features like base64 encoding and decoding, URI encoding and decoding, serialize/unserialize, time conversion and JSON beautify, it saves time on routine conversions and formatting. Designed to be lightweight and efficient, the extension provides quick access to functions that developers frequently need—whether it's decoding data, preparing URLs, or tidying up JSON structures for easier readability. Plus, it's actively maintained and will receive constant updates with new features, making it a reliable companion that grows with your development needs.
    This free, open-source Chrome extension offers essential tools for developers to streamline daily tasks, right in the browser. With features like base64 encoding and decoding, URI encoding and decoding, serialize/unserialize, time conversion and JSON beautify, it saves time on routine conversions and formatting. Designed to be lightweight and efficient, the extension provides quick access to functions that developers frequently need—whether it's decoding data, preparing URLs, or tidying up JSON structures for easier readability. Plus, it's actively maintained and will receive constant updates with new features, making it a reliable companion that grows with your development needs. The latest version also supports local AI model.
  • May 24, 2026
    short_description
    Free, open-source Chrome extension for developers. Encode, Decode, JSON beautify. New features will be added soon!
    Encode, decode, JSON beautify, and on-device AI chat with page and web search. For developers.
  • May 24, 2026
    host_permissions
    (empty)
    https://api.duckduckgo.com/*, https://html.duckduckgo.com/*
  • May 24, 2026
    permissions
    clipboardWrite
    clipboardWrite, activeTab, scripting
  • Apr 24, 2026
    description
    This free, open-source Chrome extension offers essential tools for developers to streamline daily tasks, right in the browser. With features like base64 encoding and decoding, URI encoding and decoding, and JSON beautify, it saves time on routine conversions and formatting. Designed to be lightweight and efficient, the extension provides quick access to functions that developers frequently need—whether it's decoding data, preparing URLs, or tidying up JSON structures for easier readability. Plus, it's actively maintained and will receive constant updates with new features, making it a reliable companion that grows with your development needs.
    This free, open-source Chrome extension offers essential tools for developers to streamline daily tasks, right in the browser. With features like base64 encoding and decoding, URI encoding and decoding, serialize/unserialize, time conversion and JSON beautify, it saves time on routine conversions and formatting. Designed to be lightweight and efficient, the extension provides quick access to functions that developers frequently need—whether it's decoding data, preparing URLs, or tidying up JSON structures for easier readability. Plus, it's actively maintained and will receive constant updates with new features, making it a reliable companion that grows with your development needs.

Permissions & access

Permissions
clipboardWriteactiveTabscripting
Host access
https://api.duckduckgo.com/*, https://html.duckduckgo.com/*

Screenshots

Halloween Toolbox screenshot 1Halloween Toolbox screenshot 2Halloween Toolbox screenshot 3Halloween Toolbox screenshot 4Halloween Toolbox screenshot 5

About

This free, open-source Chrome extension offers essential tools for developers to streamline daily tasks, right in the browser. With features like base64 encoding and decoding, URI encoding and decoding, serialize/unserialize, time conversion and JSON beautify, it saves time on routine conversions and formatting. Designed to be lightweight and efficient, the extension provides quick access to functions that developers frequently need—whether it's decoding data, preparing URLs, or tidying up JSON structures for easier readability. Plus, it's actively maintained and will receive constant updates with new features, making it a reliable companion that grows with your development needs. The latest version also supports local AI model.

Technical

Version
0.7.0
Manifest
V3
Size
1.31MiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
dbocjilgoohpjbdobphgecdgmjfmmnfh
Developer ID
ub8565aed755d986c58fc04f944842369
Developer Email
[email protected]
Created
Nov 5, 2024
Last Updated (Store)
May 21, 2026
Last Scraped
Jun 6, 2026
Website
Support URL

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Data sourced from the Chrome Web Store · last verified Jun 6, 2026.