If you're building a fitness app and need real exercise data — not a bare name list — here's a free, illustrated, multilingual dataset you can drop straight into an app.
RepDB Free Tier — 400 exercises, free for commercial use inside apps (with attribution):
- 400 exercises as clean JSON (a dated snapshot of the full, growing RepDB catalog).
- Flat-style illustrations at 512 px (WebP, start/peak poses — or a single pose for stretches). That's the same image resolution ExerciseDB charges $299 for.
- Target muscles, equipment, category, MET, goals, tags per exercise.
- Step-by-step instructions in English, German and Spanish.
- A few looping animation previews bundled in — the same clips you see on repdb.co — so you can judge the paid-tier motion quality (these previews are evaluation-only).
License: the free tier is free for personal and commercial use inside applications, with a visible attribution link ("Exercise data by RepDB — repdb.co"). You may not repackage or redistribute it as a standalone dataset/API — in-app use only. (It's not CC-BY-NC; you can ship it in a commercial app.)
Get it:
- GitHub: https://github.com/sergei-argutin/exercise-dataset
- Browse the exercises live: https://sergei-argutin.github.io/exercise-dataset/
- Raw JSON: https://raw.githubusercontent.com/sergei-argutin/exercise-dataset/main/exercises.json
Need more? The full RepDB dataset keeps growing (478+ today) and adds a second 1024 px classic illustration style, transparent backgrounds, and looping animations for most exercises, under a commercial license → https://repdb.co / https://repdb.co/pricing
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