
I built a free, open-source tool that shows which sub-muscles you've trained, using your Hevy data
Hi everyone, I asked a question about this here yesterday and a few of you said "just build it", so I did. Sharing in case anyone else wants the same thing. It's open-source and free. You can run it locally or deploy it to Vercel.
What it does:
- Breaks your training down into 32 sub-muscles, e.g. Shoulders → front/side/rear delt, rotator cuff; Chest →upper/mid/lower chest, serratus anterior; and so on. Every exercise in your Hevy log is distributed across these.
- Each exercise comes with default percentages for how much it hits each sub-muscle. You can change them in settings if your form or grip shifts the emphasis.
- Shows a visual body map plus an overview of volume per sub-muscle, so you can see what you've been over- and under-training.