# adam-p/markdown-here

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60,218 stars · 11,052 forks · JavaScript · MIT

## Links

- GitHub: https://github.com/adam-p/markdown-here
- Homepage: https://markdown-here.com
- awesome-repositories: https://awesome-repositories.com/repository/adam-p-markdown-here.md

## Description

Markdown Here is a browser extension that enables rich text composition within web-based editors that lack native formatting support. By transforming plain text markdown syntax into rendered HTML, it allows users to draft professional emails and documents using standard markup, including headers, tables, and footnotes, directly inside their browser.

The tool distinguishes itself through a bidirectional transformation engine that supports both the conversion of markdown to HTML and the reversion of rendered content back into its original source code. This state-preserving functionality allows for iterative editing, while integrated content protection mechanisms ensure that specific sections, such as email signatures, remain untouched during the formatting process.

The extension provides a comprehensive suite of authoring features, including support for complex data grids and custom visual styling. It is built on a cross-browser framework that utilizes a unified pipeline to package shared logic, ensuring consistent configuration and rendering behavior across different web environments.

## Tags

### Content Management & Publishing

- [Rich Text Email Composers](https://awesome-repositories.com/f/content-management-publishing/authoring-editorial-interfaces/email-authoring-tools/rich-text-email-composers.md) — Formatted HTML output is produced from markup syntax to enable professional email styling in web interfaces.
- [Markdown Parsers](https://awesome-repositories.com/f/content-management-publishing/content-processing-transformation/markdown-markup-tools/markdown-processors/markdown-parsers.md) — Structured layouts are interpreted from standard syntax, including headers, lists, and links, for seamless document conversion. ([source](https://github.com/adam-p/markdown-here/wiki/Markdown-Here-Cheatsheet))
- [Markdown Renderers](https://awesome-repositories.com/f/content-management-publishing/content-processing-transformation/markdown-markup-tools/markdown-tools/markdown-renderers.md) — Visual layouts are generated from plain text syntax to enhance readability within web-based composition environments. ([source](https://github.com/adam-p/markdown-here/wiki/Compatibility))
- [Markdown Editors](https://awesome-repositories.com/f/content-management-publishing/content-management-systems/content-management-platforms/markdown-editors.md) — Rich text formatting capabilities are added to web-based editors that lack native support for structured document composition.
- [Markdown-HTML Round-trip Converters](https://awesome-repositories.com/f/content-management-publishing/content-processing-transformation/content-processing/markdown-html-round-trip-converters.md) — Rendered HTML structures are mapped back to their original source code to support iterative editing workflows.
- [Markdown Converters](https://awesome-repositories.com/f/content-management-publishing/content-processing-transformation/document-processing-conversion/document-processing/format-specific-parsers/markdown-converters.md) — Keyboard shortcuts trigger the conversion of syntax into rich visual formatting within active web-based editing windows. ([source](https://cdn.jsdelivr.net/gh/adam-p/markdown-here@master/README.md))
- [DOM-Based Content Renderers](https://awesome-repositories.com/f/content-management-publishing/content-processing-transformation/document-processing-conversion/document-processing/rendering-visualization/dom-based-content-renderers.md) — DOM-based parsing replaces plain text nodes with rendered HTML elements to update content dynamically within the browser.
- [HTML to Markdown Reversion Tools](https://awesome-repositories.com/f/content-management-publishing/content-processing-transformation/markdown-markup-tools/markdown-processors/html-to-markdown-reversion-tools.md) — Formatted content is reverted to its original source code to allow for corrections within the active compose window. ([source](https://cdn.jsdelivr.net/gh/adam-p/markdown-here@master/README.md))
- [Table Generators](https://awesome-repositories.com/f/content-management-publishing/documentation-knowledge-management/table-generators.md) — Raw markup code is translated into formatted grid layouts, including support for merged rows and columns. ([source](https://github.com/adam-p/markdown-here/wiki/Tips-and-Tricks))

### Web Development

- [Browser Extension Tooling](https://awesome-repositories.com/f/web-development/browser-extension-tooling.md) — Utilities are bundled to facilitate the creation and deployment of browser-based tools that inject custom functionality into web pages.
- [Markdown Converters](https://awesome-repositories.com/f/web-development/browser-integration-utilities/browser-extension-development/browser-extensions/markdown-converters.md) — Plain text syntax is transformed into rich visual formatting directly within browser-based text and email editors.
- [Cross-Browser Extension Frameworks](https://awesome-repositories.com/f/web-development/browser-integration-utilities/browser-extension-development/browser-extensions/cross-browser-extension-frameworks.md) — Build-time architectures package web-standard code into cross-platform browser extensions for consistent functionality across different environments.

### Part of an Awesome List

- [Editor Extensions](https://awesome-repositories.com/f/awesome-lists/devtools/editor-extensions.md) — Renders markdown in emails before sending.
- [General Resources](https://awesome-repositories.com/f/awesome-lists/more/general-resources.md) — Tool for rendering markdown in browser-based editors.

### Development Tools & Productivity

- [Rich Text Composition Tools](https://awesome-repositories.com/f/development-tools-productivity/code-editors-ides/extension-ecosystems-management/editor-extensions/text-editors/rich-text-composition-tools.md) — Professional layouts, tables, and footnotes are created using standard syntax inside web-based text interfaces.

### Data & Databases

- [Document Formatting Engines](https://awesome-repositories.com/f/data-databases/text-processing-utilities/text-processing-tools/document-formatting-engines.md) — Styled HTML output is generated from structured text while preserving specific content sections like signatures.
- [Selective Text Processors](https://awesome-repositories.com/f/data-databases/text-processing-utilities/text-processing-tools/selective-text-processors.md) — Highlighted segments of text are isolated for selective transformation or reversion within a larger document. ([source](https://cdn.jsdelivr.net/gh/adam-p/markdown-here@master/README.md))