Nostradamus Prophecy Machine


    0.7.2 • Public • Published


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    Record your terminal and generate animated gif images or share a web player link

    Built to be jusT cOol 👌🦄 !

    If you think so, support me with a star and a follow 😘

    Built while listening to Nyan Cat 😛

    Table of Contents


    • Highly customizable.
    • Cross platform (Linux, Windows, MacOS).
    • Custom window frames.
    • Custom font.
    • Custom colors.
    • Custom styles with CSS.
    • Watermark.
    • Edit frames and adjust delays before rendering.
    • Skipping frames by a step value to reduce the number of rendered frames.
    • Render images with texts on them instead of capturing your screen for better quality.
    • The ability to configure:
      • The command to capture (bash, powershell.exe, yourOwnCommand, etc)
      • The current working directory.
      • Explicit values for the number of cols and rows.
      • GIF quality and repeating.
      • Frames delays.
      • The max idle time between frames.
      • Cursor style.
      • Font.
      • Font size.
      • Line height.
      • Letter spacing.
      • Theme.

    What's Next

    • The Generate command to generate a web player for a recording file.
    • Support apt-get, yum, brew installation.


    You need to install Node.js first, then install the tool globally using this command:

    npm install -g terminalizer

    Still facing an issue? Check the Issues section or open a new issue.

    The installation should be very smooth with Node.js v4-v12. For newer versions, if the installation is failed, you may need to install the development tools to build the C++ add-ons. Check node-gyp.

    Getting Started

    Start recording your terminal using the record command.

    terminalizer record demo

    A file called demo.yml will be created in the current directory. You can open it using any editor to edit the configurations and the recorded frames. You can replay your recording using the play command.

    terminalizer play demo

    Now let's render our recording as an animated gif.

    terminalizer render demo


    GIF compression is not implemented yet. For now we recommend


    You can use the --help option to get more details about the commands and their options

    terminalizer <command> [options]


    Create a global config directory

    terminalizer init


    Generate a config file in the current directory

    terminalizer config


    Record your terminal and create a recording file

    terminalizer record <recordingFile>


    -c, --config        Overwrite the default configurations                                  [string]
    -d, --command       The command to be executed                            [string] [default: null]
    -k, --skip-sharing  Skip sharing and showing the sharing prompt message [boolean] [default: false]


    terminalizer record foo                      Start recording and create a recording file called foo.yml
    terminalizer record foo --config config.yml  Start recording with your own configurations


    Play a recording file on your terminal

    terminalizer play <recordingFile>


    -r, --real-timing   Use the actual delays between frames as recorded        [boolean] [default: false]
    -s, --speed-factor  Speed factor, multiply the frames delays by this factor [number] [default: 1]


    Render a recording file as an animated gif image

    terminalizer render <recordingFile>


    -o, --output   A name for the output file                                      [string]
    -q, --quality  The quality of the rendered image (1 - 100)                     [number]
    -s, --step     To reduce the number of rendered frames (step > 1) [number] [default: 1]


    Upload a recording file and get a link for an online player

    terminalizer share <recordingFile>


    Generate a web player for a recording file

    terminalizer generate <recordingFile>


    The default config.yml file is stored under the root directory of the project. Execute the below command to copy it to your current directory.

    Use any editor to edit the copied config.yml, then use the -c option to override the default one.

    terminalizer config

    RECOMMENDED, use the init command to create a global config file to be used instead of the default one.

    terminalizer init

    For Linux and MacOS, the created directory is located under the home directory ~/.terminalizer. For Windows, it is located under the AppData.


    • command: Specify a command to be executed like /bin/bash -l, ls, or any other command. The default is bash for Linux or powershell.exe for Windows.
    • cwd: Specify the current working directory path. The default is the current working directory path.
    • env: Export additional ENV variables, to be read by your scripts when starting the recording.
    • cols: Explicitly set the number of columns or use auto to take the current number of columns of your shell.
    • rows: Explicitly set the number of rows or use auto to take the current number of rows of your shell.


    • frameDelay: The delay between frames in ms. If the value is auto use the actual recording delays.
    • maxIdleTime: Maximum delay between frames in ms. Ignored if the frameDelay isn't set to auto. Set to auto to prevent limiting the max idle time.


    • quality: The quality of the generated GIF image (1 - 100).
    • repeat: Amount of times to repeat GIF:
      • If value is -1, play once.
      • If value is 0, loop indefinitely.
      • If value is a positive number, loop n times.


    • cursorStyle: Cursor style can be one of block, underline, or bar.
    • fontFamily: You can use any font that is installed on your machine like Monaco or Lucida Console (CSS-like list).
    • fontSize: The size of the font in pixels.
    • lineHeight: The height of lines in pixels.
    • letterSpacing: The spacing between letters in pixels.


    You can set the colors of your terminal using one of the CSS formats:

    • Hex: #FFFFFF.
    • RGB: rgb(255, 255, 255).
    • HSL: hsl(0, 0%, 100%).
    • Name: white, red, blue.

    You can use the value transparent too.

    The default colors that are assigned to the terminal colors are:

    • background: #ffffff transparent
    • foreground: #afafaf #afafaf
    • cursor: #c7c7c7 #c7c7c7
    • black: #232628 #232628
    • red: #fc4384 #fc4384
    • green: #b3e33b #b3e33b
    • yellow: #ffa727 #ffa727
    • blue: #75dff2 #75dff2
    • magenta: #ae89fe #ae89fe
    • cyan: #708387 #708387
    • white: #d5d5d0 #d5d5d0
    • brightBlack: #626566 #626566
    • brightRed: #ff7fac #ff7fac
    • brightGreen: #c8ed71 #c8ed71
    • brightYellow: #ebdf86 #ebdf86
    • brightBlue: #75dff2 #75dff2
    • brightMagenta: #ae89fe #ae89fe
    • brightCyan: #b1c6ca #b1c6ca
    • brightWhite: #f9f9f4 #f9f9f4


    You can add a watermark logo to your generated GIF images.

      imagePath: AbsolutePathOrURL
        position: absolute
        right: 15px
        bottom: 15px
        width: 100px
        opacity: 0.9
    • watermark.imagePath: An absolute path for the image on your machine or a URL.
    • Apply CSS styles (camelCase) to the watermark image, like resizing it.

    Frame Box

    Terminalizer comes with predefined frames that you can use to make your GIF images look cool.

    • frameBox.type: Can be null, window, floating, or solid.
    • frameBox.title: To display a title for the frame or null.
    • To apply custom CSS styles or to override the current ones.

    Null Frame

    No frame, just your recording.

    Don't forget to add a backgroundColor under style.

      type: null
      title: null
        backgroundColor: black

    Window Frame

      type: window
      title: Terminalizer
      style: []

    Floating Frame

      type: floating
      title: Terminalizer
      style: []

    Solid Frame

      type: solid
      title: Terminalizer
      style: []

    Solid Frame Without Title

      type: solid
      title: null
      style: []

    Styling Hint

    You can disable the default shadows and margins.

      type: solid
      title: null
        boxShadow: none
        margin: 0px


    How to support ZSH

    The default command that gets recorded for Linux is bash -l. You need to change the default command to zsh.

    • Generate a config file in the current directory
    terminalizer config
    • Open the generated config file in your preferred editor.
    • Change the command to zsh:
    command: zsh
    • You may need to change the font, check the font that is used in your terminal:
    fontFamily: "Meslo for Powerline, Meslo LG M for Powerline"
    • Use the -c option to override the config file:
    terminalizer record demo -c config.yml


    error while loading shared libraries: cannot open shared object file: No such file or directory


    sudo yum install libXScrnSaver

    error while loading shared libraries: cannot open shared object file: No such file or directory


    sudo apt-get install libgconf-2-4


    This project is under the MIT license.


    npm i terminalizer

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