A free, ready-to-use multilingual fitness exercise dataset — JSON + 512 px flat WebP illustrations, with target muscles, equipment, MET values, and full instructions in English, German & Spanish. Free for personal and commercial in-app use, with attribution.
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⬇️ Download the 250-exercise ZIP → · 🌐 Browse live → · ⬆️ Paid tiers →
This is the free tier of RepDB, a curated commercial exercise dataset. It contains the free-tier snapshot (currently 250 of 518+ exercises, 2026-08): each exercise ships as JSON with flat-style 512 px WebP illustrations (start/peak poses, or a single pose for stretches), target muscles, equipment, goals, tags, MET values, and step-by-step instructions in English, German, and Spanish.
Unlike the usual scraped exercise JSONs, everything here is original, consistent, and usable in commercial apps for free — the only hard requirement is attribution. And unlike an API, it's just files: no key, no rate limit, no uptime to worry about.
Important
Attribution is required. Place a visible link — "Exercise data by RepDB (repdb.co)" — in your app's about/credits screen, your project's README, or your website footer. That's the price of the free tier.
Copy-paste Markdown, HTML, and app-credit versions are ready in
ATTRIBUTION.md.
Full text: LICENSE-DATA.md. The seven terms in short:
- Free for personal and commercial use inside applications — apps, websites, research projects, at no cost.
- Attribution required — a visible "Exercise data by RepDB (repdb.co)" link.
- No redistribution as a dataset — don't republish, resell, or repackage it (or a derivative) as a dataset, dataset repo, or API. In-app use only.
- Image modifications — resize/crop/recolor for in-app use is fine; upscaled or background-removed derivatives still fall under the no-redistribution rule.
- No generative-AI derivation — the images may not be used as input, reference, or training/conditioning material for generative models (image-to-image restyling, style transfer, fine-tuning, etc.); outputs count as derived datasets.
premium-samples/is evaluation-only — the paid-tier samples in that folder may not be used in production or redistributed.- No warranty; not medical advice.
This repository is RepDB's own canonical free-tier distribution — term 3 restricts third parties, not this publication (see the "About this repository" note in the license). The index.html viewer code is MIT.
constdata=awaitfetch("https://exercise-dataset.com/exercises.json").then(r=>r.json());console.log(data.count,"exercises");constex=data.exercises[0];console.log(ex.name_en,"·",ex.name_de,"·",ex.name_es);console.log(ex.images.flat.start);// "images/flat/<id>-start.webp"importjson, urllib.requesturl="https://exercise-dataset.com/exercises.json"data=json.load(urllib.request.urlopen(url))
print(data["count"], "exercises")
forexindata["exercises"]:
print(ex["id"], "→", ex["body_part"], ex["equipment"])exercises.json is a single object: { name, homepage, license, schema_version, count, note, exercises[] }.
Each entry in exercises[]:
| Field | Type | Notes |
|---|---|---|
id | string | URL-safe slug, e.g. bulgarian-split-squat |
name_en / name_de / name_es | string | Display name per locale |
description_en / _de / _es | string | One-line summary (where available) |
instructions_en / _de / _es | string[] | Step-by-step |
tips_en / _de / _es | string[] | Form cues (where available) |
category | string | strength, stretching, … |
force_type | string | push / pull / static / dynamic |
mechanic | string | compound / isolation |
difficulty | string | beginner / intermediate / advanced |
equipment | string | e.g. dumbbell, kettlebell, cable — absent for bodyweight-only moves |
body_part | string | Primary region |
primary_muscles / secondary_muscles | string[] | Anatomical slugs |
goals | string[] | e.g. hypertrophy, strength |
tags | string[] | e.g. knee_safe, no_axial_load |
met | number | Metabolic equivalent (for calorie estimates) |
is_unilateral / is_bodyweight | bool | |
images | object | { flat: {start, peak} }or{ flat: {main} } → repo-relative WebP paths |
images/flat/— flat-illustration style on a solid designed background, 512×512 WebP.- Most exercises have two poses,
startandpeak; stretches and holds have a singlemainpose. Handle both shapes. - Some near-identical exercise variants intentionally share the same image file (aliases) — key your UI by exercise
id, not by image path. - The path is already in each record —
ex.images.flat.peak→images/flat/<id>-peak.webp.
Names, descriptions, instructions, and tips ship in English, German, and Spanish for every exercise in this snapshot — same coverage as the paid dataset.
The premium-samples/ folder holds a handful of Standard-tier assets — 5 looping, transparent-background exercise animations, the same clips shown on repdb.co — so you can judge the paid quality before buying. They are evaluation-only: not for production use, not for redistribution (license term 6). See them rendered on the live viewer.
| Free (this repo) | Starter | Standard | |
|---|---|---|---|
| Images | flat, 512 px | classic white-background, 1024 px + flat | Starter + transparent backgrounds + looping animations |
| Exercise set | dated snapshot | full, growing dataset | full, growing dataset |
| Updates | quarterly lagged snapshot | continuous | continuous |
| Formats | JSON + WebP | JSON + SQLite + WebP | JSON + SQLite + WebP + animations |
| Languages | EN · DE · ES | EN · DE · ES | EN · DE · ES |
| License | attribution, in-app only | commercial, no attribution | commercial, no attribution |
For perspective: our free tier ships the resolution ExerciseDB charges $299 for.
➡️ repdb.co/pricing — one payment, no subscription, no API, no rate limits.
Example integrations (each vendors this dataset):
- ▲ Next.js — https://github.com/RepDB/repdb-example-nextjs
- 📱 React Native (Expo) — https://github.com/RepDB/repdb-example-react-native
- 🐦 Flutter — https://github.com/RepDB/repdb-example-flutter
- 🌐 Full dataset & pricing — repdb.co
- 🧪 Live browser for this dataset — https://exercise-dataset.com/
- 📄 One page per exercise — muscles worked, equipment, instructions, tips and the raw JSON record, e.g. https://exercise-dataset.com/exercise/bulgarian-split-squat/
- 💬 Questions — support@repdb.co