Useful

Name: Useful
Rating: 4 (1 reviews)
Author: MikeXia

Developer's Tool Packages, Just for simple.

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Useful is a comprehensive Chrome extension designed to enhance developer efficiency by providing a suite of online tools without any installation needed. Developers can effortlessly test RESTful APIs, debug WebSocket communications, and securely encrypt or decrypt data using multiple algorithms like AES and RSA. The extension also offers JSON formatting, comparison, and syntax highlighting, alongside timestamp converters with timezone adjustments.

Additional features include file comparison and merging, regular expression validation with real-time syntax checks, a WYSIWYG Markdown editor supporting images and code exports, dynamic QR code generation with scanning capabilities, and versatile color picking with palette management. Image tools enable compression and format conversion in batches, making Useful an all-in-one solution directly within the browser, ensuring privacy via local data storage and enabling seamless collaborative sharing.

Add-on Developer Tools Productivity Programming Utilities Productivity

By:

MikeXia

Users:

870

Rating:

4.00

(1)

Version:

2.2.9 Last updated: 2025-03-16

Creation date:

2024-02-22

Risk:

Permissions:

downloads

Host permissions:

<all_urls>

Size:

11.82MB

Full description:

Source:

Edge Add-on Store

Data ingested on:

2025-07-17

Ranking

# 5,369 ▲ 5

Other rankings

#35 in compare keyword 9 ▲ 1

#38 in developer tools keyword 59

#88 in json keyword 70

#93 in color picker keyword 60

#109 in insert keyword 27 ▼ 1

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Other platforms

Useful (v2.2.9)

754 5.00

(2)

User reviews

我的http请求，为什么header放不上

by *****, 2024-03-11

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Extension safety

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Useful requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
Medium ****** ********** ** ******** ********** *** ********* ******* ******** ****** ******** ****** ********

Risk likelihood

Risk likelihood measures the probability that an Edge add-on may turn malicious. This is determined by the publisher and the Edge add-on reputation on Edge Add-on Store, the amount of time the Edge add-on has been around, and other signals about the Edge add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing an Edge add-on.

Useful is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
Good **** ********* *** **** **** *******

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