All extensions

Use Markdown when writing on MetaFilter.

Markdown Link

🧑‍💻 Developer Tools

Get a markdown link to the current tab

Markdown Viewer

Dark Mode • Themes • Autoreload • Mermaid Diagrams • MathJax • ToC • Syntax Highlighting

Marketplace Size Chart Builder

Create clean, professional size charts with draggable measurement arrows.

Markup Desk

Read, write, clean, preview, and convert HTML, Markdown, and BBCode in a focused local workspace.

Mark Your Search

Mark required text from the webpage and search via popular search engines!

Marles

Instant answers to whatever's on your screen — quizzes, docs, PDFs — explained so you actually learn it. No typing.

MarmoGlow

A UI extension to transform Marmoset into a clean, modern, and actually-usable interface.

MARPLA — Roblox Helper

🧑‍💻 Developer Tools

Бенчмарки, сигналы Home, Creator Rewards, Community Finance и подтверждённое создание рекламы Roblox для MARPLA.

Mars

Mars, the red planet, intrigues with barren landscapes, polar ice caps, and potential for human exploration and understanding of…

Maski

Create a Maski email alias and put it in the signup form you are on.

MaskJSON - DevTools PII Redactor

Instantly redact PII from JSON network requests directly in DevTools.

5.03

masonsguild.com

Universal Search for masonsguild.com platform.

Matcher Cart Capture

Capture your shopping cart from supported U.S. retailers and send it to Matcher for cargo quotes to Nigeria.

Match History Exporter

One-click export and archive of your personal match history from supported analytics platforms to a backup server you control.

Math Addict

A basic demo of what MathAddict will be able to do through a Unity WebGL Game!

Mật Khẩu Xinh Xắn ✨

Tạo mật khẩu siêu bảo mật với giao diện kẹo ngọt đáng yêu!

MATTRN Screenshot

MATTRN Screenshot: Full Page Capture & Web Tool

Mauerstrassen-Wetten Wort-Ersetzer

Deutscht Finanzbegriffe ein: Ersetzt 'Nasdaq' durch 'NassDachs' auf allen Webseiten und viele mehr

Mava

MAVA analyzer

Maverto

Contextual knowledge management for organizations

MaxiONE Click-to-Call

Call from a web page with MaxiONE.

Maya Page Helper

AI-powered text assistant for summarizing, explaining, and creating quizzes from selected text on any webpage.

May Eye

🧑‍💻 Developer Tools

May Eye inspects the current page and extracts precise size, border, radius, and color values from a selected element.