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Show HN: Cascii – A portable ASCII diagram builder written in vanilla JavaScript by ftr1200

Show HN: Cascii – A portable ASCII diagram builder written in vanilla JavaScript by ftr1200

Show HN: Cascii – A portable ASCII diagram builder written in vanilla JavaScript by ftr1200

9 Comments

  • Post Author
    dspillett
    Posted March 17, 2025 at 10:36 pm

    That looks almost exactly like something I've wanted, thought numerous times about making, but never getting around to. Thanks for scratching your itch and mine!

  • Post Author
    macintux
    Posted March 17, 2025 at 10:43 pm

    Very cool, thanks.

    One of the saddest days at my current job: when the company I’m contracted to stopped offering Excalidraw in favor of Lucid. I mostly understand the rationale, but the dramatic difference in friction basically shut down all interest I had in using diagrams to help communicate with my team members.

  • Post Author
    jaredwiener
    Posted March 17, 2025 at 10:54 pm

    Really cool — and congrats!

    FYI there's a typo in the link in the README — points to casci.app instead of cascii.app.

  • Post Author
    dimenoz
    Posted March 17, 2025 at 11:16 pm

    This is fantastic. I've always used JavE before but this being a single HTML file is a big+ and packs quite a punch. Kudos to the author!

    One question though, how do edit the content later? For example I generated a few diagrams one at a time and pasted those in a local plain text file. Later when I want to edit a particular diagram/part, I tried copy pasted it in, but always got "cannot paste, content leaves canvas" error. If I tried copy-pasting a really small section (e.g. 3×3 table), it pasted it right in the center. Anyway, not sure if that's an intended work flow or not. Great job regardless.

  • Post Author
    shanselman
    Posted March 17, 2025 at 11:37 pm

    genius. I love it. I'll take 14 of these immediately!

  • Post Author
    breadchris
    Posted March 17, 2025 at 11:37 pm

    omg this is beautiful, great job!

  • Post Author
    nwroot
    Posted March 18, 2025 at 2:34 am

    This is amazing thank you. Have been using asciimap or whatever, but this works so much better. Thank you.

  • Post Author
    ccakes
    Posted March 18, 2025 at 2:44 am

    Looks super cool, congrats!

    Monodraw[1] is a similar product delivered as a standalone macOS app. It’s a classic pay once-type license and very polished software. Cannot recommend enough! I’ve always wanted something as good on Linux though, will definitely give this a go!

    [1] https://monodraw.helftone.com/

  • Post Author
    dangoodmanUT
    Posted March 18, 2025 at 4:20 am

    it's literally just a single html file

    legend

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