diff --git a/README.md b/README.md
index c10c570..7fea68b 100644
--- a/README.md
+++ b/README.md
@@ -130,11 +130,25 @@ This line is not parsable : {"key4": "value2", "key5":}
 Launch this command, just update the sourcePath env var :
 
 ```
-cross-env sourcePath=pathToYourFileWithoutExtension node scripts/transform/detectErrorInJsonByLine.js
+cross-env sourcePath=pathToYourFileWithoutExtension node scripts/validation/detectErrorInJsonByLine.js
 ```
 
 Without sourcePath env var, the script choose the file in dataset folder
 
+### detectErrorInJsonsInsideFolder
+
+Iterate over each json file in specified folder to log every not parsable files, like
+
+#### How to launch
+
+Launch this command, just update the sourcePath env var :
+
+```
+cross-env sourcePath=pathToYourFolder node scripts/validation/detectErrorInJsonsInsideFolder.js
+```
+
+Without sourcePath env var, the script choose the folder `folderOfJsons` in dataset folder
+
 ## Ping
 
 Launch a ping with your nodeJS network configuration. It's helpfull if you want to check the connectivity between your
diff --git a/package-lock.json b/package-lock.json
old mode 100755
new mode 100644
index ef15623..bb4b5f8
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
-  "name": "toolbox",
-  "version": "0.1.0",
+  "name": "datasets-toolbox",
+  "version": "0.2.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -72,9 +72,9 @@
       "integrity": "sha1-6PvzdNxVb/iUehDcsFctYz8s+hA="
     },
     "lodash": {
-      "version": "4.17.20",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.20.tgz",
-      "integrity": "sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA=="
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
     },
     "map-stream": {
       "version": "0.0.7",
diff --git a/package.json b/package.json
index 029f2bb..74cc843 100755
--- a/package.json
+++ b/package.json
@@ -9,6 +9,7 @@
   "scripts": {
     "start-ping": "cross-env ipToPing= node ./scripts/ping.js",
     "start-detectErrorInJsonByLine": "cross-env sourcePath= node scripts/validation/detectErrorInJsonByLine.js",
+    "start-detectErrorInJsonsInsideFolder": "cross-env sourcePath= node scripts/validation/detectErrorInJsonsInsideFolder.js",
     "start-convertObjectByLineToObjectsArray": "cross-env sourcePath= node scripts/transform/convertObjectByLineToObjectsArray.js",
     "start-convertCsvToJson": "cross-env sourcePath= node scripts/transform/convertCsvToJson.js",
     "start-transformEveryObjectInObjectByLine": "cross-env sourcePath= node scripts/transform/transformEveryObjectsInObjectByLine.js",
diff --git a/scripts/validation/detectErrorInJsonsInsideFolder.js b/scripts/validation/detectErrorInJsonsInsideFolder.js
new file mode 100755
index 0000000..86f06a4
--- /dev/null
+++ b/scripts/validation/detectErrorInJsonsInsideFolder.js
@@ -0,0 +1,25 @@
+const fs = require('fs');
+const path = require('path');
+
+const folderPath = process.env.sourcePath ? process.env.sourcePath : `${__dirname}/../../dataset/validation/folderOfJsons`;
+
+const jsonsToValidate = fs.readdirSync(path.resolve(folderPath));
+
+(async () => {
+    console.log(`detectErrorInJsonsInsideFolder in process for this folder ${folderPath}`)
+    for (const jsonFile of jsonsToValidate) {
+        if(jsonFile.endsWith('.json')){
+            let rawJson = fs.readFileSync(`${folderPath}/${jsonFile}`);
+            try {
+                if (rawJson) {
+                    JSON.parse(rawJson.toString());
+                }
+            } catch (e) {
+                console.error("ERROR : This file is not a valid json  :", jsonFile, e)
+            }
+        }
+
+    }
+    console.log(`detectErrorInJsonsInsideFolder is ended`)
+})();
+