13,774 extensions found in Web Development

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Link Analyzer
Analyze the status of the links in a complete webpage or in selected text.
Rated 4.9 out of 5
damufo
202 users
HTML Content Blocker
Blocks desired HTML contents (script, style, image, object, media)
Rated 3.5 out of 5
ilGur
200 users
Switch Direction
Switch Direction in edits, useful for mixed RTL and LTR texts editing.
Rated 4.7 out of 5
ebraminio
200 users
Canvas Capture
Capture video from canvas elements
Rated 4.4 out of 5
Chase
199 users
HTTP Indicator
Indicator for HTTP/2, QUIC and HTTP/3
Rated 4 out of 5
pd4d10
199 users
Free Backlink Checker by LRT
Free backlink checker to verify all links on a page. Finds broken, unverified, no-follow, follow, internal, external links.
Rated 4 out of 5
LinkResearchTools GmbH
199 users
WhatsApp Message Scheduler
Schedule messages in WhatsApp Web. Create messages to send later, set delivery time or delay, and manage all pending scheduled messages in a simple interface. Works directly inside WhatsApp Web.
Rated 5 out of 5
Pau
199 users
single-spa Inspector
A devtools panel for single-spa applications.
There are no ratings yet
single spa inspector dev
198 users
Easy DNS lookup
Utility to do DNS lookups directly to DNS APIs and display the response in the addon.
Rated 4 out of 5
wesinator
197 users
WaybackURL
Fetch all the URLs that the Wayback Machine knows about for a domain
There are no ratings yet
Hossein Shourabi
196 users
Viewport
Displays the current viewport size when resizing the browser window.
Rated 3 out of 5
Kameron
196 users
Color Picker
Pick up amazing color on one click
Rated 1.8 out of 5
Lokdien
195 users
Twitter Video Downloader MP3 MP4
New Firefox Extension Twitter Video Downloader MP3 MP4 let you easy download any content from Twitter in few steps. Get any Video from Twitter and Download it in MP3, MP4, M4A and other best quality formats. Download video from Twitter TT with FF.
Rated 1.5 out of 5
Youzik YouTube MP3 Converter
195 users
FontFinder
A powerful font finder and identifier that recognises fonts on any webpage, displays detailed typography info, and allows on-the-fly modifications.
Rated 5 out of 5
Software Best Decisions
195 users
Disable WebP Images
Disables WebP images by removing image/webp from Accept header
Rated 1 out of 5
John Galt
194 users
MediaInspector
A tool to inspect the binary content of any <video> or <audio> element.
Rated 3.4 out of 5
vdh
192 users
Reveal Password
A simple utility to see auto-filled saved passwords with double click on any page. Double click the password and it should show as a plain text.
Rated 3.5 out of 5
NightSurfer
192 users
MozBar
MozBar: The All-In-One SEO Toolbar Analyze SEO metrics, audit on-page elements, and track Domain Authority in real-time.
Rated 5 out of 5
Moz
191 users
APIsec BOLT
Discover APIs from browser traffic and auto-generate OpenAPI specs.
Rated 5 out of 5
APIsec.ai
191 users
EcoIndex.fr
Récupérer facilement les analyses Ecoindex faites sur une page grace au moteur ecoindex.fr
Rated 5 out of 5
Vincent Vatelot
191 users
DESIGN.md Generator - TypeUI
Firefox extension to extract page styles and generate DESIGN.md or SKILL.md files and use it with Google Stitch, Claude, Codex, and Cursor. This markdown file is based on the open-source TypeUI configuration.
Rated 5 out of 5
Zoltán Szőgyényi
191 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
189 users
Histogram Viewer
Generates the histogram of a selected image.
Rated 5 out of 5
David Fichtmueller
189 users
Skip Ads
Skip all annoying ads
Rated 3.9 out of 5
I Am Your Fear
188 users
Palette Creator
Creates a color palette from any image. Just right-click on the image and select the 'Palette Creator' option.
Rated 4.6 out of 5
Daniel Perez Alvarez
188 users