Sharing & embedding
You can share any recording by copying its URL and sending it to a friend or posting it on a social network. asciinema.org supports oEmbed/Open Graph/Twitter Card protocols, displaying a nice thumbnail where possible.
You can also easily embed an asciicast on any HTML page. If you want to put a recording in a blog post, a project’s documentation or in a conference talk’s slides, you can do it by copy-pasting one of the embed scripts.
Sharing a link
You can get the share link for a specific asciicast by clicking on “Share” link on asciicast page.
Any of the options listed in “Customizing the playback” section below can be appended to the asciicast URL as the query params, e.g.:
Visiting this link will start the playback at 25s and play at double speed, using Solarized Dark terminal theme.
Embedding image link
Embedding as an image link is useful in places where scripts are not allowed, e.g. in a project’s README file.
You can get the embed snippets for a specific asciicast by clicking on “Share” link on asciicast page.
This is how they look for asciicast 14:
<a href="https://asciinema.org/a/14"><img src="https://asciinema.org/a/14.png" width="836"/></a>
You can pass extra options (listed in “Customizing the playback” below) to the
linked URL as query params. For example, to start the playback automatically
when opening linked asciicast page append
?autoplay=1 to the asciicast URL in
<a href="https://asciinema.org/a/14?autoplay=1"><img src="https://asciinema.org/a/14.png" width="836"/></a>
Embedding the player
If you’re embedding on your own page or on a site which permits script tags, you can use the full player widget.
You can get the widget script for a specific asciicast by clicking on “Embed” link on asciicast page.
It looks like this:
<script src="https://asciinema.org/a/14.js" id="asciicast-14" async></script>
The player shows up right at the place where the script is pasted. Let’s look at the following markup:
<p>This is some text.</p> <script src="https://asciinema.org/a/14.js" id="asciicast-14" async></script> <p>This is some other text.</p>
The player is displayed between the two paragraphs, as a
div element with
The embed script supports all customization options (see the section below). An
option can be specified by adding it as a
data-option-name=”value” attribute to the script
For example, to make the embedded player autostart playback when loaded and use big font, use the following script:
<script src="https://asciinema.org/a/14.js" id="asciicast-14" async data-autoplay="true" data-size="big"></script>
Customizing the playback
The player supports several options that control the behavior and look of it.
Append them to the URL (
?speed=2&theme=tango) or set them as data attributes
on embed script (
startAt / t
t) option specifies the time at which the playback should
start. The default is
startAt=0 (play from the beginning).
startAt is specified then
autoplay=1 is implied. To prevent the
player from starting automatically when
startAt option is set you have to
autoplay option controls whether the playback should automatically start
when the player loads. Accepted values:
- 0 / false - do not start playback automatically (default)
- 1 / true - start playback automatically
preload option controls whether the player should immediately start
fetching the recording.
- 0 / false - do not preload the recording, wait for user action
- 1 / true - preload the recording
Defaults to 1 for asciinema.org URLs, to 0 for embed script.
loop option allows for looping the playback. This option is usually
autoplay option. Accepted values:
- 0 / false - disable looping (default)
- 1 / true - enable looping
speed option alters the playback speed. The default speed is 1 which
means it plays at the unaltered, original speed.
idleTimeLimit / i
i) option allows reducing terminal inactivity periods
to a given number of seconds.
For example, when set to 2 any inactivity longer than 2 seconds will be “compressed” to 2 seconds.
When not specified it defaults to (first non-blank):
- the “Idle time limit” value set on asciicast’s settings page,
idle_time_limitvalue from asciicast header (saved when passing
- no limit, when it was not specified at the time of recording.
theme option allows overriding a theme used for the terminal. It defaults
to a theme set by the asciicast author (or to “asciinema” if not set by the
author). The available themes are:
cols option allows overriding width (in characters) of the emulated
terminal. By default the recorded terminal’s width is used.
rows option allows overriding height (in lines) of the emulated terminal.
By default the recorded terminal’s height is used.
oEmbed / Open Graph / Twitter Card
asciinema supports oEmbed, Open Graph and Twitter Card APIs. When you share an asciicast on Twitter, Slack, Facebook, Google+ or any other site which supports one of these APIs, the asciicast is presented in a rich form (usually with a title, author, description and a thumbnail image), linking to your recording on asciinema.org.