9,786 extensions found in Web Development

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Histogram Viewer
Generates the histogram of a selected image.
Rated 5 out of 5
David Fichtmueller
197 users
Inspector
FOSS extension to read and inspect all cookies and local storage.
Rated 5 out of 5
MLOP
197 users
Simple Modify Headers - Extended
Rewrites HTTP request/response headers based on a rules table.
Rated 5 out of 5
Warren Bank
196 users
Textern
Edit text in your favourite external editor!
Rated 5 out of 5
Jonathan Lebon
196 users
MyIP - ip address and location details
This extension displays your public IPv4 address, provider name, location and dns server.
Rated 4.3 out of 5
turbopixel
196 users
ViewCached
Checks the cached version of the site on ViewCached.com
Rated 4 out of 5
Giant Anchovy Solutions
196 users
EXIFdata Viewer
EXIFdata Viewer is a powerful browser extension that allows you to view and analyze the metadata of images, including EXIF, IPTC, and XMP data. With this extension, you can uncover the hidden details of your images.
Rated 3 out of 5
Sourabh Singh
195 users
KOSHIAN メール欄を表示
メール欄を表示します
Rated 4 out of 5
Pachira
195 users
Edit
Format Text, Replace, Insert HTML, BBCode, Markdown & Custom Texts
Rated 4.6 out of 5
erosman
194 users
Anti Anti Debug
Be able to use developer tools again
Rated 5 out of 5
Andrew S
194 users
HTTP Indicator
Indicator for HTTP/2, QUIC and HTTP/3
Rated 4 out of 5
pd4d10
193 users
OptiSearch
Display ChatGPT, StackOverflow, Wikipedia, etc. answers alongside Google Search results !
Rated 4.1 out of 5
OptiSearch
192 users
WordPress Theme Detection - ThemeDetect.com
Find out which theme a WordPress site is using with the help of ThemeDetect.com
Rated 3.5 out of 5
Who Hosts This
191 users
Simple JavaScript Injector
This addon creates a small popup that lets you paste some JS code and inject it into the page you are currently seeing.
Rated 3.7 out of 5
Joel Perpetua
191 users
Fullscreen anything
Let user select element to maximize
Rated 3.7 out of 5
forstjiri
191 users
VPN Master - Free HTTP and SOCKS Proxies
A free reliable VPN solution based on HTTP, SOCKS4, and SOCKS5 proxy servers
Rated 3.1 out of 5
emano waldeck
191 users
Angular state inspector
Helps you to debug Angular component state. Supports Angular 1/2+/Ivy/hybrid!
Rated 5 out of 5
Anton Lunev
189 users
Geek Sidebar - Free DeepSeek & Bookmark Sync
Write smarter with ChatGPT, Claude, Grok & DeepSeek.All-in-one AI, smart bookmarks,and tools—clean up links, check pages, summarize, analyze docs, screenshots.Your sidebar just leveled up.
There are no ratings yet
极客侧边栏
189 users
Salesforce Inspector Advanced
Productivity tools for Salesforce administrators and developers to inspect data and metadata directly from the Salesforce UI.
Rated 5 out of 5
Olivier Dufour
189 users
Passwork Auto Logon
Use your Passwork accounts to auto signin on web sites in one click.
Rated 2.7 out of 5
Passwork
189 users
CSS Layout Debugger
When activated, CSS Layout Debugger applies dynamic backgrounds and outlines to elements on the page in order to assist in layout debugging.
Rated 4.7 out of 5
CSS Layout Debugger
187 users
Javascript Control
Add a button in the url bar to block or enable javascript per-site. Default is javascript disabled.
Rated 4.1 out of 5
Erwan Ameil
187 users
Adobe Target VEC Helper
Load your website's desktop and mobile views effortlessly in Adobe Target with the VEC helper extension
Rated 3 out of 5
Adobe
187 users
OpenAPI DevTools
Instantly generate API specifications in real time for any app or website. Open the add-on in Firefox developer tools and watch network requests become an OpenAPI specification.
Rated 5 out of 5
Andrew Walsh
187 users
Vue Performance Devtool
A devtool extension for inspecting the performance of Vue components.
Rated 2.6 out of 5
Rafael Escala
187 users