拡張機能

Wayback machine website
Online service that have 452 billion web pages saved over time and who is domain tool in context menu

Font Finder
選択した要素のCSSスタイルを取得するための使いやすいフォントインスペクター

Copy Title And Url
Copy the title and url in markdown, pukiwiki, html format.

HexDump - Hex Viewer
Display file contents in hexadecimal, and ascii

PerfectPixel by WellDoneCode
この拡張機能は、ピクセル単位の精度でWebサイトを開発するのに役立ちます!

Open in Vivaldi
Open current page, link, or all tabs in the Vivaldi browser.

Rabbit URL Opener
Rabbit URL Opener (Rahul Digital) - Bulk URL's Opener Extension just lets you open multiple URLs at once. More about Rabbit URL Opener http://rahuldigital.org/url-opener/ http://rahuldigital.com/url-opener/

(X)HTML5 Checker
A small extension to validate the markup of current tab

Edit the Page
Toggles the 'Design Mode' so that you can edit the contents of the page.

retire.js
Scanning website for vulnerable js libraries

W3C Markup Validation Service
This validator checks the markup validity of Web documents in HTML, XHTML, SMIL, MathML, etc.

Hex Calculator
Perform quick and accurate hexadecimal calculations — addition, subtraction, multiplication, and division with remainder — directly in your Opera browser.

Polypad (Open in App)
Polypad Open in App.

Octobox
Integrate Octobox directly into your GitHub workflow

NPM Version Stats
Show npm package version usage statistics inline on the npmjs.com package page in the versions tab

Image Resizer
Rescale multiple images into different sizes in a single step

Rainbow States
Color AWS Step Functions states

Browser Update Watchdog
Notifies you, whenever your browser has been automatically updated.

md5 hash generator
MD5 hash generator (offline mode)

Strike Out Nofollow Links
Just strikes out nofollow links via CSS3 selectors.

sha1 hash generator
SHA1 hash generator (offline mode)

TeamCity Notifier
Shows notifications about various events in TeamCity

FullScreen for Opera
フルスクリーン、#1ズーム、ダークモードのオプションは1つになります

Youtube converter button - YTLoad
YouTube downloader FREE - Convert videos to MP3 MP4

Kalkulator PRPG by dabox
Profesjonalny system automatycznej wyceny pojazdów dla graczy ProjectRPG. Stworzony przez dabox.

Edit with Paint.Net
Adds a context menu item to send image links directly to Paint.Net photo editor

TwicPics Companion
Using TwicPics has never been so easy!

Picture in Play
Indicates whether the `picture` element is in use on a page.

Caffeine
Keep awake which prevents the OS from automatically going to sleep, dimming the screen or starting screen savers

Octotree
GitHub on steroids

Web Edit
ボタンをクリックするだけで、Web サイトを一時的に簡単に編集できます。

BuiltWith Technology Profiler
Find out what the website you are visiting is built with using this extension.