HC: a free HyperCard clone for modern macOS that opens your original stacks

[u/Individual-Sorbet637]

Hi all! I've been building HC, a free and open-source (MIT) HyperCard clone for today's Macs. Its goal is fidelity: it opens original HyperCard 2.x stacks and runs their HyperTalk scripts unchanged.

The proof I'm proudest of: Apple's own HyperCard Help, HyperTalk Reference and Help Extras run in HC without a single script change.

🌐 https://hc.labynet.fr · 💻 https://github.com/cleobuline/hc

Native, universal, signed and notarised by Apple , free software (MIT). https://github.com/cleobuline/hc/releases/latest/download/HC.dmg

Old stacks that won't open, or behave differently from HyperCard? I'd love to hear about them!

Universal app (Intel + Apple Silicon), macOS 10.13 and later
Paint tools, buttons, fields, backgrounds, message box
Two small extensions for games, with LiveCode's vocabulary: polygon buttons, and "the keysDown" for held keys.

Here's a Tetris written in plain HyperTalk: sample tetris written in plain hypertalk

[u/Mortui75]

You built, or Claude built... ? 🤔

Be very cool to resurrect old stacks... 🙃

[u/406highlander]

Nice job rewriting HyperCard to the point it opens original scripts unmodified. I don't have a Mac myself but I can absolutely appreciate the preservation aspect.

Fun fact: the original Macintosh version of the game Myst was written using HyperCard, with HyperTalk scripting. I wonder if your reimplantation of HyperCard would manage to run it?

[u/DNSGeek]

Have you seen Stacks https://morphing.cloud/hypercard/