MFM

MFM, short for Markup language For Misskey, is a proprietary markup language that can be used in various locations in Misskey. Some of its syntax is compatible with Markdown and HTML.

Examples of places where MFM can be used

• The text of a note
• Content warning annotation
• Names of users
• User bios

Syntax

Mentions

@ + username can be used to display a specific user.

@ai

Preview

@ai

@[email protected]

Preview

@repo@p1.a9z.dev

Hashtags

# + tag can be used to display a hashtag.

#misskey

URL

URLs can be displayed.

https://example.com

Links

Specific parts of text can be displayed as a URL.

[example link](https://example.com)

?[example link](https://example.com)

Custom Emoji

Custom emoji can be displayed by surrounding the emoji name with colons.

:misskey:

Preview

Bold

Bolds text for emphasis.

**太字**

Shrink

Displays content smaller and thinner.

<small>MisskeyでFediverseの世界が広がります</small>

Quote

Displays content as a quote.

> MisskeyでFediverseの世界が広がります

Center align

Displays content centered.

<center>MisskeyでFediverseの世界が広がります</center>

Yomigana (Ruby characters)

Yomigana can be attached to text.

$[ruby Misskey ミスキー] 

Code (Inline)

Displays syntax highlighting for code from programs inline.

`<: "Hello, world!"`

Code (Block)

Displays multi-line syntax highlighting for code from programs in a block.

By specifying the programming language by ID, you can apply syntax highlighting in that language. Available languages are:

• Languages supported by Shiki (200+)
• AiScript: Specify one of aiscript, ais, or is to use.

```ais
for (let i, 100) {
    <: if ((i % 15) == 0) "FizzBuzz"
        elif ((i % 3) == 0) "Fizz"
        elif ((i % 5) == 0) "Buzz"
        else i
}
```

Flip

Flips content horizontally or vertically.

$[flip MisskeyでFediverseの世界が広がります]
$[flip.v MisskeyでFediverseの世界が広がります]
$[flip.h,v MisskeyでFediverseの世界が広がります]

Font

Sets the font to display content in.

$[font.serif MisskeyでFediverseの世界が広がります]
$[font.monospace MisskeyでFediverseの世界が広がります]
$[font.cursive MisskeyでFediverseの世界が広がります]
$[font.fantasy MisskeyでFediverseの世界が広がります]

Blur

Content can be blurred. When hovering the mouse over the content, it will be displayed clearly.

$[blur MisskeyでFediverseの世界が広がります]

Search

A search box can be displayed.

misskey 検索

Foreground and Background Color

The color of the foreground and background can be changed.

Colors are expressed using 3, 4, or 6 digit color codes.

$[fg.color=f00 赤字]
$[bg.color=ff0 黄背景]

Border

Content can be surrounded borders. The borders can have various styles.

$[border.style=solid,width=4 Default]

$[border.style=hidden No border]

$[border.style=dotted,width=2 Dotted]
$[border.style=dashed,width=2 Dashed]
$[border.style=double,width=4 Double]

$[border.style=groove,width=4 Embossed A]
$[border.style=ridge,width=4 Embossed B]

$[border.style=inset,width=4 Inset A]
$[border.style=outset,width=4 Inset B]

$[border.color=d00 Border color]
$[border.width=5 Border width]

$[border.radius=6,width=2 Border radius]

$[border.radius=5,width=2,color=888 $[position.x=1.5 ＣＳＳ]
$[position.x=1.5 完全に理解した]]

$[border.radius=5,width=2,color=888,noclip $[position.x=1.5 ＣＳＳ]
$[position.x=1.5 完全に理解した]]

Rotate

Rotate by a specified angle.

$[rotate.deg=30 misskey]

Shift Position

The position can be shifted.

😏$[position.x=0.8,y=0.5 🍮]😀

Preview

Expand

Displays enlarged text.

$[scale.x=4,y=2 🍮]

Preview

$[x2 x2]
$[x3 x3]
$[x4 x4]

Animation (Jelly)

$[jelly 🍮] $[jelly.speed=5s 🍮]

Preview

Animation (Tada)

$[tada 🍮] $[tada.speed=5s 🍮]

Preview

Animation (Jump)

$[jump 🍮] $[jump.speed=5s 🍮]

Preview

Animation (Bounce)

$[bounce 🍮] $[bounce.speed=5s 🍮]

Preview

Animation (Spin)

$[spin 🍮] $[spin.left 🍮] $[spin.alternate 🍮]
$[spin.x 🍮] $[spin.x,left 🍮] $[spin.x,alternate 🍮]
$[spin.y 🍮] $[spin.y,left 🍮] $[spin.y,alternate 🍮]

$[spin.speed=5s 🍮]

Preview

Animation (Shake)

$[shake 🍮] $[shake.speed=5s 🍮]

Preview

Animation (Twitch)

$[twitch 🍮] $[twitch.speed=5s 🍮]

Preview

Rainbow

$[rainbow 🍮] $[rainbow.speed=5s 🍮]
$[rainbow 色なし文字]
$[rainbow $[fg.color=f0f 色付き文字]]

Preview

色なし文字
色付き文字

Sparkle

$[sparkle 🍮]

Preview

Plain Text

Disable formatting of content.

<plain>**bold** @mention #hashtag `code` $[x2 🍮]</plain>

Information for developers

MFM parsing and rendering implementations are published as libraries, making it easy to incorporate MFM into clients.

• misskey-dev/mfm.js - JavaScript parser implementation
• mfm-renderer - Vue.js component
• mfm.kt - Kotlin parser implementation
• mfm_parser - Dart parser implementation
• mfm - Flutter rendering widget