Format your messages

Zulip uses a variant of GitHub Flavored Markdown to allow you to easily format your messages.

Emphasis

**bold**, *italic*, and ~~strikethrough~~ text
***~~All three at once~~***

Markdown emphasis

Lists

Bulleted lists

* bulleted lists
  * with sub-bullets too
  * sub-bullets start with 2 spaces
    * start sub-sub-bullets with 4 spaces
* multi
line
bullet
- dashes and
+ pluses are ok too

Markdown bullets

Numbered lists

1. numbered lists
1. increment automatically
1. one more

Markdown numbered lists

Zulip auto-linkifies URLs and valid stream names. You can also add a custom linkifier to link patterns like #1234 to your ticketing system.

Auto-detected URL: zulip.com
Named link: [Zulip homepage](zulip.com)
Stream: #**stream name**
Topic: #**stream name>topic name**
Custom linkifier: #1234 (links to ticket 1234 in your ticketing system)

Markdown links

Images

See Share and upload files to learn more about dropping, pasting, and attaching images.

[A whale of a good time](https://your.zulip.domain/user_uploads/1/46/IPvysqXEtiTG1ZdNBrwAZODi/whale-time.png)

Markdown image

Code

Inline: `let x = 5`

Code block:
```
def f(x):
   return x+1
```

Syntax highlighting:
```python
def fib(n):
    # TODO: base case
    return fib(n-1) + fib(n-2)
```

Markdown code

You can also use ~~~ to start code blocks, or just indent the code 4 or more spaces.

See the main code blocks article for details on syntax highlighting, code playgrounds, and other features.

LaTeX

Inline: $$O(n^2)$$

Displayed:
``` math
\int_a^b f(t)\, dt = F(b) - F(a)
```

Markdown LaTeX

Zulip's LaTeX rendering is powered by KaTeX. Their support table is a helpful resource for checking what's supported or how to express something.

Quotes

> a multi-line
quote on two lines

normal text

```quote
A multi-paragraph

quote in two paragraphs
```

Markdown quotes

Spoilers

You can use spoilers to hide content that you do not want to be visible until the user interacts with it.

Normal content in message

```spoiler Spoiler header
Spoiler content. These lines won't be visible until the user expands the spoiler.
```

The spoiler will initially display in a collapsed form:

Spoiler collapsed

Clicking the arrow will expand the spoiler content:

Spoiler expanded

Emoji and emoticons

To translate emoticons into emoji, you'll need to enable emoticon translations. You can also add custom emoji.

:octopus: :heart: :zulip: :)

Markdown emoji

Mentions

Learn more about mentions here.

Users: @**Polonius** or @**aaron|26** or @**|26** (two asterisks)
User group: @*support team* (one asterisk)
Silent mention: @_**Polonius** or @_**|26** (@_ instead of @)

The variants with numbers use user IDs, and are intended for disambiguation (if multiple users have the same name) and bots (for the variant that only contains the user ID).

Markdown mentions

Status messages

/me is away

Markdown status

Mention a time

When collaborating with people in another timezone, you often need to express a specific time clearly. Rather than typing out your timezone and having everyone translate the time in their heads, in Zulip, you can mention a time, and it'll be displayed to each user in their own timezone (just like the timestamps on Zulip messages).

A date picker will appear once you type <time.

Our next meeting is scheduled for <time:2020-05-28T13:30:00+05:30>

A person in San Francisco will see:

Our next meeting is scheduled for Thu, May 28 2020, 1:00 AM.

While someone in India will see:

Our next meeting is scheduled for Thu, May 28 2020, 1:30 PM.

You can also use other formats such as UNIX timestamps or human readable dates, for example, <time:May 28 2020, 1:30 PM IST>.

Tables

The initial pipes (|) are optional if every entry in the first column is non-empty. The header separators (---) must be at least three dashes long.

|| yes | no | maybe
|---|---|:---:|------:
| A | left-aligned | centered | right-aligned
| B |     extra      spaces      |  are |  ok
| C | **bold** *italic* ~~strikethrough~~  :smile:  ||

Markdown table

Paragraphs and lines

One blank space for a new paragraph
New line, same paragraph

New paragraph

---, ***, or ___ for a horizontal line
Over the line

---

Under the line

Markdown paragraph

In-app help

A summary of the formatting syntax is available in-app.

  1. Open the compose box.

  2. Click help at the bottom of the compose box.