Cascii v1.0.4 (beta)

Cascii is a web-based ASCII and Unicode diagram builder written in vanilla Javascript.

It has zero dependencies on any servers, web packing, libraries, and is no-markup and no-stylesheets. You can start building diagrams by simply opening the cascii.html file in a browser. Cascii is also hosted at cascii.app where you can get short links to your diagrams, open an account, etc (see the Cascii server repo).

Examples

Here is a diagram built with Cascii that loosely explains how Cascii is structured internally:

                                   ┌╶╶╶╶╶╶╶╶╶╶╶╶╶╶┐
                                   ╷ GroupManager ╷
                                   └╶╶╶╶╶╶╶╶╶╶╶╶╶╶┘
               ┌─────────────┐    /                  ┌─────────────┐
               │EventManager │   /           ┌───────│SquareLayer  │
               └─────────────┘  /            │       │─────────────│        ┌───────────────┐
                      \        /             │───────│CircleLayer  │   ┌────│SwitchLineLayer│
                       \      /              │       │─────────────│   │    │───────────────│
                        ┏━━━━━━━━━━━━┓       │───────│BaseLineLayer│◀──┐────│FreeLineLayer  │
                        ┃LayerManager┃◀──────┘       │─────────────│   │    │───────────────│
                        ┗━━━━━━━━━━━━┛       │───────│DiamondLayer │   └────│StepLineLayer  │
        ┌────────────┐ /      /       \      │       │─────────────│        └───────────────┘
        │CharManager │/      /         \     │───────│FreeLayer    │
        └────────────┘      /           \    │       │─────────────│
                           /             \   └───────│TableLayer   │
                     ┌────────────┐       \          └─────────────┘            Pixels!
                     │ ModeMaster │        •
                     └────────────┘      •   •                                     ▲
                                       •       •                                   │
                                     •           •                                 │
                                   •   CanvasCom   ────────────────────────────────┘
                                     •           •
                                       •       •
                                         •   •
                                           •
Edit/view: https://cascii.app/7c24a

Installation

Simply download and open the cascii.html file!

...Literally...

curl https://cascii.app -o cascii.html && open cascii.html

...Or...

If you are not making changes, it's recommended to use cascii.app directly so you can take advantage of short links and save your work. Locally, short links will not appear in your exports.

Features

• Basic drawing
• Selection (area selection, multi-selection, resize, move)
• Joints
• Grouping
• Ordering
• Duplicating
• Dynamic tables
• Free draw / erase
• Auto save (browser local storage)
• Paste / import text
• Layers: Free, Switch Lines, Steps Lines, Free Lines, Square, Circle, Diamond, Text, Table
• History (undo/redo)
• Line styling
• ASCII and Unicode
• Themes
• Base64 import / export for offline work
• Optional grid view

Shortcuts

ctrl-g              Group
ctrl-c              Copy layer
ctrl-z              Undo
ctrl-shift-z        Redo
ctrl-a              Select all
ctrl-v              Paste text
ctrl-click          Single-select member of group
shift-click         Multi-select
backspace/delete    Delete layer
arrow keys          Move layer / navigate text

Contributing

Contributions are very welcomed. Please feel free to submit proposals directly in the form of a PR or Issue.

License

Licensed under the Apache License, Version 2.0