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12,103 extensions found in Web Development

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  • All-In-One PageSpeed Test

    All-In-One PageSpeed Test

    Test any website performance with main test tools with one single click: Google PageTest Insights, GTmetrix, Yellow Lab Tools

    Evgeniy Orlov

    468 users

  • Three.js Developer Tools

    Three.js Developer Tools

    Developer tools for 3D library three.js.

    Jordan Santell

    468 users

  • Cital - Citation Generator

    Cital - Citation Generator

    Easily Generate Citations by entering the DOI of a paper.

    Sumit Banik

    464 users

  • Internet Connection Monitor

    Internet Connection Monitor

    Monitor the internet connection and display status in the toolbar.

    hazharmaroufi

    463 users

  • Bitly URL Shortner

    Bitly URL Shortner

    Bitly service to convert long URLs or Links of websites to short.

    DSNet

    462 users

  • ScrapeMate Beta

    ScrapeMate Beta

    Scraping assistant tool. Editing and maintaining lists of CSS/XPath selectors across webpages. Element picker (from SelectorGadget). Presets manager. Active preset JSON view/edit. JavaScript toggling per tab.

    John Smith

    457 users

  • Script Runner

    Script Runner

    Script injector for JavaScript and CSS!

    ankur1218

    453 users

  • Clear Cache and Data

    Clear Cache and Data

    Clears the browser cache and other selected storage.

    Button Guy

    453 users

  • JSON Beautify It

    JSON Beautify It

    Tool for beautifying JSON data, AJAX or API responses in browser

    Igor Lazarev

    449 users

  • Sourcegraph for Firefox

    Sourcegraph for Firefox

    Adds code intelligence to GitHub, GitLab, Bitbucket Server, and Phabricator: hovers, definitions, references. Supports 20+ languages.

    Sourcegraph

    449 users

  • Cookies and HTTP Headers analyser

    Cookies and HTTP Headers analyser

    This extension analyses, according to OWASP guidelines, the cookies and the headers in the active tab.

    stefano

    447 users

  • DTF ReReDesign

    DTF ReReDesign

    Правильный редизайн дтф

    Nikos7331

    446 users

  • Color Picker

    Color Picker

    Click to get the color code of an element on the current web page.

    OKVIP

    445 users

  • W3Techs Website Technology Information

    W3Techs Website Technology Information

    Shows which web technologies the current site is using.

    SamSol

    444 users

  • Wide GitHub

    Wide GitHub

    Makes GitHub wide on Mozilla Firefox. Supports GitHub, private Gists, GitHub Enterprise, and custom domains (TLDs).

    fabiocchetti

    444 users

  • HTML to Figma: Convert Websites into Designs

    HTML to Figma: Convert Websites into Designs

    Convert any webpage into an editable design or wireframe. Export to Figma, SVG, PNG, or JPG.

    Wireframeit

    444 users

  • Page Load Timer

    Page Load Timer

    Displays page load time in the toolbar

    Sanjay Kumar | SelectorsHub Founder

    443 users

  • LLMFeeder - Web to Markdown for AI

    LLMFeeder - Web to Markdown for AI

    Convert web pages to clean Markdown for ChatGPT, Claude and AI. Multi-tab support, right-click menus, token counter. 100% offline.

    jatinkrmalik.com

    443 users

  • Claude Chat Exporter

    Claude Chat Exporter

    Turn your Claude.ai conversations into reusable Markdown, JSON, or HTML files. Export chats with artifacts, thinking blocks, and attachments for documentation, team sharing, or Claude Projects.

    sylvester1979

    440 users

  • RTL Helper

    RTL Helper

    Fix RTL layout issues for Persian, Arabic, Hebrew and other right-to-left languages

    Reza Asadi

    439 users

  • Show Server IP

    Show Server IP

    Show the Server IP without interacting with external Sites. If you are behind a proxy it will only show the IP of the Proxy!

    BongoKarl101010

    439 users

  • Choosy

    Choosy

    Integrates Choosy with Firefox. Mac only.

    georgebrock

    437 users

  • Tota11y: Accessibility toolkit

    Tota11y: Accessibility toolkit

    Inserts the tota11y JS file from Khan Academy into the current tab so that you can visualize how the current page performs with assistive technologies. All the credit goes to Khan Academy for their amazing script.

    Bogdan Lazar

    437 users

  • PeerName: Surf Blockchain-Based Domains

    PeerName: Surf Blockchain-Based Domains

    Enables the resolving of Dot-BIT domains by Namecoin. Also .emc, .coin, .lib and .bazar domains by EmerCoin.

    John Galt

    436 users

  • GIFs for GitHub

    GIFs for GitHub

    Easily search GIPHY to add a GIF into any Github comment box.

    Nick

    431 users