diff --git a/README.md b/README.md
index 33e86c9..48e8eed 100644
--- a/README.md
+++ b/README.md
@@ -105,7 +105,8 @@ A step-by-step guide for integrating the dataset into your own application:
 ```
 exercises-dataset/
 ├── data/
-│   └── exercises.json       # Full dataset — 1,324 exercise records (JSON array)
+│   ├── exercises.json        # Full dataset — 1,324 exercise records (JSON array)
+│   └── exercises.schema.json # JSON Schema (2020-12) describing every record
 ├── images/                  # 1,324 × 180×180 thumbnails  (© Gym visual)
 ├── videos/                  # 1,324 × 180×180 animation GIFs  (© Gym visual)
 ├── index.html               # Interactive exercise browser (client-side, no server needed)
@@ -117,6 +118,7 @@ exercises-dataset/
 ### Key Files
 
 - **`data/exercises.json`** — The primary data file. A JSON array of 1,324 exercise objects with all metadata. `image` / `gif_url` point to the local 180×180 assets, and each record carries an `attribution` field; `media_id` holds the original media reference id.
+- **`data/exercises.schema.json`** — A [JSON Schema](https://json-schema.org/) (Draft 2020-12) that formally describes every field, its type and constraints. Use it to validate the dataset or your own additions with any standard JSON Schema validator.
 - **`images/`, `videos/`** — 180×180 thumbnails and animation GIFs (© [Gym visual](https://gymvisual.com/), used with permission).
 - **`index.html`** — Standalone exercise browser. Open directly in any modern browser.
 - **`setup.html`** — Developer guide for DB setup, API integration, and LLM-assisted backend generation.
@@ -169,7 +171,7 @@ exercises-dataset/
 
 ## 🗂️ Data Schema
 
-Each record in `data/exercises.json` follows this structure:
+Each record in `data/exercises.json` follows this structure. A machine-readable [JSON Schema](data/exercises.schema.json) is also provided for validation.
 
 | Field | Type | Description |
 |---|---|---|
@@ -184,6 +186,7 @@ Each record in `data/exercises.json` follows this structure:
 | `instructions.tr` | `string` | Full step-by-step instructions in Turkish |
 | `instructions.ru` | `string` | Full step-by-step instructions in Russian |
 | `instructions.zh` | `string` | Full step-by-step instructions in Chinese |
+| `instruction_steps.<lang>` | `array[string]` | Same instructions split into an ordered array of steps, per language (`en`, `es`, `it`, `tr`, `ru`, `zh`) |
 | `muscle_group` | `string` | Primary synergist muscle group |
 | `secondary_muscles` | `array[string]` | Additional muscles involved |
 | `target` | `string` | Primary target muscle (e.g. `"biceps"`, `"pectoralis major"`) |
diff --git a/data/exercises.schema.json b/data/exercises.schema.json
new file mode 100644
index 0000000..33b4b5b
--- /dev/null
+++ b/data/exercises.schema.json
@@ -0,0 +1,151 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "https://github.com/hasaneyldrm/exercises-dataset/blob/main/data/exercises.schema.json",
+  "title": "Exercises Dataset",
+  "description": "Schema for data/exercises.json — an array of fitness exercise records with multilingual instructions and media references.",
+  "type": "array",
+  "items": {
+    "$ref": "#/$defs/exercise"
+  },
+  "$defs": {
+    "languageMap": {
+      "type": "object",
+      "description": "Instruction text keyed by ISO 639-1 language code.",
+      "properties": {
+        "en": { "type": "string" },
+        "es": { "type": "string" },
+        "it": { "type": "string" },
+        "tr": { "type": "string" },
+        "ru": { "type": "string" },
+        "zh": { "type": "string" }
+      },
+      "required": ["en", "es", "it", "tr", "ru", "zh"],
+      "additionalProperties": { "type": "string" }
+    },
+    "languageStepsMap": {
+      "type": "object",
+      "description": "Step-by-step instructions as an array of strings, keyed by ISO 639-1 language code.",
+      "properties": {
+        "en": { "$ref": "#/$defs/steps" },
+        "es": { "$ref": "#/$defs/steps" },
+        "it": { "$ref": "#/$defs/steps" },
+        "tr": { "$ref": "#/$defs/steps" },
+        "ru": { "$ref": "#/$defs/steps" },
+        "zh": { "$ref": "#/$defs/steps" }
+      },
+      "required": ["en", "es", "it", "tr", "ru", "zh"],
+      "additionalProperties": { "$ref": "#/$defs/steps" }
+    },
+    "steps": {
+      "type": "array",
+      "items": { "type": "string", "minLength": 1 }
+    },
+    "exercise": {
+      "type": "object",
+      "properties": {
+        "id": {
+          "type": "string",
+          "description": "Unique numeric identifier, zero-padded to 4 digits (e.g. \"0001\").",
+          "pattern": "^[0-9]{4}$"
+        },
+        "name": {
+          "type": "string",
+          "description": "Full exercise name (e.g. \"3/4 sit-up\").",
+          "minLength": 1
+        },
+        "category": {
+          "type": "string",
+          "description": "Body part category. Mirrors body_part.",
+          "minLength": 1
+        },
+        "body_part": {
+          "type": "string",
+          "description": "Body part targeted.",
+          "enum": [
+            "back",
+            "cardio",
+            "chest",
+            "lower arms",
+            "lower legs",
+            "neck",
+            "shoulders",
+            "upper arms",
+            "upper legs",
+            "waist"
+          ]
+        },
+        "equipment": {
+          "type": "string",
+          "description": "Required equipment (e.g. \"dumbbell\", \"body weight\").",
+          "minLength": 1
+        },
+        "instructions": {
+          "$ref": "#/$defs/languageMap",
+          "description": "Full step-by-step instructions as a single string per language."
+        },
+        "instruction_steps": {
+          "$ref": "#/$defs/languageStepsMap",
+          "description": "Same instructions split into an ordered array of steps per language."
+        },
+        "muscle_group": {
+          "type": "string",
+          "description": "Primary synergist muscle group.",
+          "minLength": 1
+        },
+        "secondary_muscles": {
+          "type": "array",
+          "description": "Additional muscles involved.",
+          "items": { "type": "string", "minLength": 1 }
+        },
+        "target": {
+          "type": "string",
+          "description": "Primary target muscle (e.g. \"biceps\", \"abs\").",
+          "minLength": 1
+        },
+        "media_id": {
+          "type": "string",
+          "description": "Original media reference id (e.g. \"2gPfomN\").",
+          "minLength": 1
+        },
+        "image": {
+          "type": "string",
+          "description": "Path to the 180x180 thumbnail (e.g. \"images/0001-2gPfomN.jpg\").",
+          "pattern": "^images/.+\\.(jpg|jpeg|png)$"
+        },
+        "gif_url": {
+          "type": "string",
+          "description": "Path to the 180x180 animation GIF (e.g. \"videos/0001-2gPfomN.gif\").",
+          "pattern": "^videos/.+\\.gif$"
+        },
+        "attribution": {
+          "type": "string",
+          "description": "Media copyright notice.",
+          "minLength": 1
+        },
+        "created_at": {
+          "type": "string",
+          "description": "ISO 8601 timestamp of record creation.",
+          "format": "date-time"
+        }
+      },
+      "required": [
+        "id",
+        "name",
+        "category",
+        "body_part",
+        "equipment",
+        "instructions",
+        "instruction_steps",
+        "muscle_group",
+        "secondary_muscles",
+        "target",
+        "media_id",
+        "image",
+        "gif_url",
+        "attribution",
+        "created_at"
+      ],
+      "additionalProperties": false
+    }
+  }
+}