A browser app (plus NodeJS server) to edit QMK and ZMK keymaps. This was hastily thrown together and then even more hastily converted to a Vue app with support for ZMK tossed in.

You've got a couple of options:

You can clone this repo and your zmk-config and run the editor locally. Changes are saved to the keymap files in your local repository and you can commit and push them to as desired to trigger the GitHub Actions build.

Read more about local setup

This editor has a (very) rudimentary GitHub integration. You can load the web app and grant it access to your zmk-config repo. Changes to your keymap are committed right back to the repository so you only ever need to leave the app to download your firmware.

Try it now:

1. Fork zmk-config-corne-demo on GitHub
2. Go to keymap-editor and authorize it to access your forked repo.

Read more about the GitHub integration

• WYSIWYG keycode and layer editing.
• Keymap (JSON and .keymap) generation
  • If the (non-standard) row and col attributes are specified in info.json they will be used to render the generated files in a more human- readable format that matches the physical layout of the keyboard. Note that these values are now the rol and column of the wiring matrix which may be different to use GPIO pins more efficiently.

The app tries to treat both firmware libraries the same way, parsing a key binding into a behaviour and a list of parameters -- QMK doesn't share this concept so a placeholder behaviour of &kp is used, and later ignored.

I haven't studied all of ZMK's behaviours closely but this tool supports the unusual &bt BT_SEL behaviour/command which requires one additional parameter which needs to be added/parsed dynamically.

Side note: I'm Canadian and default to writing behaviour. To match ZMK I will try to standardize on its spelling but mistakes are likely.

Probably a lot. Like I said, I've mostly built this for myself. I wanted a graphical way to edit my keymap and I didn't want to have to get yet another handwired keyboard merged into the QMK repo to rely on their configurator.

I know that QMK moves quickly and now supports a lot of configuration in info.json that I don't provide a way to edit. ZMK has a lot of behaviours that I haven't defined, and would benefit from a schema definition agreed on by the dev team.

In a previous version I had started working on supporting combos but gave up because I couldn't be bothered to experiment with TAPPING_TERM settings that felt comfortable.

More recently I've ripped out QMK-related code. Some interfaces haven't been updated, so there's still some vestigial support for both. It's less important to make this a 100% fit for the ZMK codebase and more important to provide a proof of concept for how apps can be built to support users of the firmware.

If you have thoughts on what needs to be fixed to support your keyboard or to make this a useful tool for users of either firmware, let me know.

I'm not committing to taking this on myself, and I'll probably never do much testing on any other keyboards, but I'm happy to have discussions on where this (or another tool) can go.

The code in this repo is available under the MIT license.

The collection of ZMK keycodes is taken from the ZMK documentation under the MIT license as well.