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12,487 extensions found in Web Development

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  • SEOInfo

    SEOInfo

    Shows SEO issues as you navigate pages. Displays performance data, redirects, structured data and errors for HTML pages. Save to Excel.

    Weeblr

    270 users

  • CSP Content Security Policy Generator

    CSP Content Security Policy Generator

    Best Content-Security-Policy generator to automatically create Strict CSP policies (with SHA support) for any website.

    RapidSec

    269 users

  • Google Gemini + Ecosia-AI + m365 chat Wide Content

    Google Gemini + Ecosia-AI + m365 chat Wide Content

    Toggle max-width between 1200px and Google's and Ecosia's "hardcoded" 760px / 720px width on gemini.google.com and ecosia.org/ai-search conversations with a simple click on the addon icon in the toolbar!

    Dan

    268 users

  • mSession Keeper

    mSession Keeper

    An extension to keep your web-sessions alive. Maintains active sessions of Web Applications, that have an inactivity timeouts. Based on Session Keeper by Guillaume Boudreau.

    pmorzonek

    268 users

  • URL2QRCode

    URL2QRCode

    Converts Current URL to QRCode.

    Firefox user 13535997

    268 users

  • var_dump

    var_dump

    client-side var_dump beautifier

    Cl00e9ment

    267 users

  • Markdown Diagrams

    Markdown Diagrams

    Renders diagrams and charts code blocks into preview images. Supports many languages: PlantUML, Mermaid, C4, GraphViz, Erd, Nomnoml, BPMN, *Diag, Bytefield, Ditaa, Svgbob, UMlet, Vega, Vega-Lite, WaveDrom.

    Modulo srl

    267 users

  • QR Code

    QR Code

    Add 'QR Code' Encoding Functions. "QR Code" is registered by DENSO WAVE INCORPORATED.

    ^2

    266 users

  • SWR DevTools

    SWR DevTools

    A DevTool for SWR

    koba04

    264 users

  • Cryptext

    Cryptext

    Encrypts and decrypts text using various encoding methods.

    cscarpa

    264 users

  • DOMLogger++

    DOMLogger++

    DOMLogger++ allows you to monitor, intercept, and debug JavaScript sinks based on customizable configurations.

    Kévin (Mizu)

    262 users

  • CookieSwap

    CookieSwap

    Tool to save and swap out a collection of cookies on the fly that allows implement multilogin feature

    ExtUp

    262 users

  • Web Media Saver

    Web Media Saver

    WebMediaSaver empowers users to save and organize online media content for offline access, enabling them to enjoy their favorite videos, music, and images anytime, anywhere.

    JeetWin

    261 users

  • Temporary Mobile View

    Temporary Mobile View

    Temporarily switch the current tab into Android or iOS view

    Lunu

    261 users

  • PixiJS Devtools

    PixiJS Devtools

    Debug games and apps written with PixiJS

    Bob Fanger

    261 users

  • Anti Anti Debug

    Anti Anti Debug

    Be able to use developer tools again

    Andrew S

    261 users

  • Chat Export

    Chat Export

    This extension allows you to export chat conversations from the LLM sites ChatGPT and Claude to Markdown, XML, JSON, and HTML.

    Jerren T

    260 users

  • User Agent

    User Agent

    Change your user agent QUICKLY and EASILY! Our extension includes SEVERAL ADVANCED methods of user-agent spoofing! To test its efficiency: https://webbrowsertools.com/useragent/

    SandVPN

    259 users

  • Remove Site Cookies

    Remove Site Cookies

    Remove Site Cookies

    Sridarshan

    258 users

  • Split-Screen Browser Tool

    Split-Screen Browser Tool

    Easily split your browser window to view multiple websites side by side.

    Reginalds

    258 users

  • Open in Opera

    Open in Opera

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

    Andy Portmen

    258 users

  • Pixefy - Responsive Design Checker

    Pixefy - Responsive Design Checker

    Preview and debug your website’s responsiveness across multiple devices in real-time, all inside one browser tab.

    Pixefy

    257 users

  • CSS Spider

    CSS Spider

    The fastest and easiest way to check, copy and edit CSS

    Mohith G

    256 users

  • Save All Resources

    Save All Resources

    Save All Resources is a powerful Chrome extension that automatically captures and saves all resources loaded by any webpage — including images, scripts, stylesheets, fonts, videos, and more — into a single convenient ZIP file with just one click

    Hizone

    256 users

  • GitHub + Mermaid

    GitHub + Mermaid

    A browser extension for Chrome, Opera & Firefox that adds Mermaid language support to GitHub.

    Alex Mercier

    255 users