diff --git a/backend/app/controllers/user.controller.js b/backend/app/controllers/user.controller.js
index 56f2708..13eab1d 100644
--- a/backend/app/controllers/user.controller.js
+++ b/backend/app/controllers/user.controller.js
@@ -446,4 +446,24 @@ export async function isSubscribed(req, res) {
         client.end();
         return res.status(200).json({subscribed: false});
     }
+}
+
+export async function searchByUsername(req, res) {
+    const username = req.query.username;
+    const client = await getClient();
+    const logger = req.body.logger;
+    logger.action("try to search user by username " + username);
+
+    const query = `SELECT * FROM users WHERE username ILIKE $1`;
+    const result = await client.query(query, [`%${username}%`]);
+
+    if (result.rows.length === 0) {
+        logger.write("no user found with username " + username, 404);
+        client.end();
+        return res.status(404).json({error: "User Not Found"});
+    }
+
+    logger.write("successfully found user with username " + username, 200);
+    client.end();
+    res.status(200).json(result.rows);
 }
\ No newline at end of file
diff --git a/backend/app/routes/user.route.js b/backend/app/routes/user.route.js
index bb2e095..e405495 100644
--- a/backend/app/routes/user.route.js
+++ b/backend/app/routes/user.route.js
@@ -8,7 +8,8 @@ import {
     deleteUser,
     getChannel, getHistory,
     isSubscribed,
-    verifyEmail
+    verifyEmail,
+    searchByUsername
 } from "../controllers/user.controller.js";
 import {
     UserRegister,
@@ -58,4 +59,7 @@ router.get("/:id/channel/subscribed", [addLogger, isTokenValid, User.id, Channel
 // VERIFY EMAIL
 router.post("/verify-email", [addLogger, validator], verifyEmail);
 
+// SEARCH BY USERNAME
+router.get("/search", [addLogger, isTokenValid], searchByUsername);
+
 export default router;
\ No newline at end of file
diff --git a/backend/logs/access.log b/backend/logs/access.log
index c893ed1..f3e3a42 100644
--- a/backend/logs/access.log
+++ b/backend/logs/access.log
@@ -7427,3 +7427,41 @@
 [2025-08-17 10:06:21.133] [undefined] GET(/:id/history): try to retrieve history of user 2
 [2025-08-17 10:06:21.138] [undefined] GET(/:id/history): failed to retrieve history of user 2 because it doesn't exist with status 404
 [2025-08-17 10:06:21.148] [undefined] GET(/user/:id): Playlists retrieved for user with id 2 with status 200
+[2025-08-17 10:24:55.268] [undefined] POST(/): try to create new channel with owner 2 and name astria
+[2025-08-17 10:24:55.271] [undefined] POST(/): Successfully created new channel with name astria with status 200
+[2025-08-17 10:24:55.288] [undefined] GET(/:id/channel): try to retrieve channel of user 2
+[2025-08-17 10:24:55.292] [undefined] GET(/:id/channel): successfully retrieved channel of user 2 with status 200
+[2025-08-17 10:24:56.366] [undefined] GET(/:id): try to get channel with id 1
+[2025-08-17 10:24:56.380] [undefined] GET(/:id): Successfully get channel with id 1 with status 200
+[2025-08-17 10:24:56.386] [undefined] GET(/:id/stats): try to get stats
+[2025-08-17 10:24:56.395] [undefined] GET(/:id/stats): Successfully get stats with status 200
+[2025-08-17 10:25:00.825] [undefined] GET(/:id/channel): try to retrieve channel of user 2
+[2025-08-17 10:25:00.830] [undefined] GET(/:id/channel): successfully retrieved channel of user 2 with status 200
+[2025-08-17 10:28:34.803] [undefined] GET(/:id/channel): try to retrieve channel of user 2
+[2025-08-17 10:28:34.807] [undefined] GET(/:id/channel): successfully retrieved channel of user 2 with status 200
+[2025-08-17 10:29:51.209] [undefined] GET(/:id/channel): try to retrieve channel of user 2
+[2025-08-17 10:29:51.214] [undefined] GET(/:id/channel): successfully retrieved channel of user 2 with status 200
+[2025-08-17 10:32:59.876] [undefined] GET(/:id/channel): try to retrieve channel of user 2
+[2025-08-17 10:32:59.880] [undefined] GET(/:id/channel): successfully retrieved channel of user 2 with status 200
+[2025-08-17 10:33:09.144] [undefined] GET(/:id/channel): try to retrieve channel of user 2
+[2025-08-17 10:33:09.148] [undefined] GET(/:id/channel): successfully retrieved channel of user 2 with status 200
+[2025-08-17 10:43:59.502] [undefined] GET(/:id/channel): try to retrieve channel of user 2
+[2025-08-17 10:43:59.507] [undefined] GET(/:id/channel): successfully retrieved channel of user 2 with status 200
+[2025-08-17 10:45:08.860] [undefined] GET(/:id/channel): try to retrieve channel of user 2
+[2025-08-17 10:45:08.863] [undefined] GET(/:id/channel): successfully retrieved channel of user 2 with status 200
+[2025-08-17 10:45:12.454] [undefined] GET(/:id): failed due to invalid values with status 400
+[2025-08-17 10:46:31.555] [undefined] GET(/:id): failed due to invalid values with status 400
+[2025-08-17 10:53:32.094] [undefined] POST(/): Invalid token with status 401
+[2025-08-17 10:53:43.691] [undefined] POST(/): Invalid token with status 401
+[2025-08-17 10:54:16.538] [undefined] POST(/): Invalid token with status 401
+[2025-08-17 10:55:19.631] [undefined] GET(/:id/channel): try to retrieve channel of user 2
+[2025-08-17 10:55:19.636] [undefined] GET(/:id/channel): successfully retrieved channel of user 2 with status 200
+[2025-08-17 10:55:19.640] [undefined] GET(/:id/history): try to retrieve history of user 2
+[2025-08-17 10:55:19.645] [undefined] GET(/:id/history): failed to retrieve history of user 2 because it doesn't exist with status 404
+[2025-08-17 10:55:19.656] [undefined] GET(/user/:id): Playlists retrieved for user with id 2 with status 200
+[2025-08-17 10:55:25.476] [undefined] POST(/): Playlist created with id 3 with status 200
+[2025-08-17 10:55:25.497] [undefined] GET(/user/:id): Playlists retrieved for user with id 2 with status 200
+[2025-08-17 10:55:57.559] [undefined] GET(/:id): Invalid token with status 401
+[2025-08-17 10:59:30.938] [undefined] GET(/:id): Invalid token with status 401
+[2025-08-17 11:04:33.569] [undefined] GET(/:id): Invalid token with status 401
+[2025-08-17 11:07:46.550] [undefined] POST(/): Invalid token with status 401
diff --git a/frontend/src/components/UserCard.jsx b/frontend/src/components/UserCard.jsx
new file mode 100644
index 0000000..b64e7fe
--- /dev/null
+++ b/frontend/src/components/UserCard.jsx
@@ -0,0 +1,14 @@
+
+
+export default function UserCard({user, doShowControls}) {
+    return (
+        <div className="flex items-center justify-between p-2 border-b border-gray-700">
+            <span className="text-white">{user.username}</span>
+            {doShowControls && (
+                <button className="text-red-500" onClick={() => {}}>
+                    Supprimer
+                </button>
+            )}
+        </div>
+    );
+}
\ No newline at end of file
diff --git a/frontend/src/pages/AddVideo.jsx b/frontend/src/pages/AddVideo.jsx
index 560b9ec..0fa8132 100644
--- a/frontend/src/pages/AddVideo.jsx
+++ b/frontend/src/pages/AddVideo.jsx
@@ -1,8 +1,9 @@
 import Navbar from "../components/Navbar.jsx";
 import { useEffect, useState } from "react";
 import Tag from "../components/Tag.jsx";
-import { getChannel } from "../services/user.service.js";
+import { getChannel, searchByUsername } from "../services/user.service.js";
 import { uploadVideo, uploadThumbnail, uploadTags } from "../services/video.service.js";
+import { on } from "node:events";
 
 
 export default function AddVideo() {
@@ -14,10 +15,13 @@ export default function AddVideo() {
     const [videoTitle, setVideoTitle] = useState("");
     const [videoDescription, setVideoDescription] = useState("");
     const [videoTags, setVideoTags] = useState([]);
-    const [visibility, setVisibility] = useState("public");
+    const [visibility, setVisibility] = useState("private");
     const [videoThumbnail, setVideoThumbnail] = useState(null);
     const [videoFile, setVideoFile] = useState(null);
     const [channel, setChannel] = useState(null);
+    const [searchUser, setSearchUser] = useState("");
+    const [authorizedUsers, setAuthorizedUsers] = useState([]);
+    const [searchResults, setSearchResults] = useState([]);
     const [alerts, setAlerts] = useState([]);
 
     useEffect(() => {
@@ -102,6 +106,22 @@ export default function AddVideo() {
         setAlerts(alerts.filter(alert => alert !== alertToRemove));
     };
 
+    const onUserSearch = (e) => {
+        const searchUser = e.target.value;
+        if (searchUser.trim() !== "") {
+            // Call the API to search for users
+            searchByUsername(searchUser, token, addAlert)
+                .then((results) => {
+                    setSearchResults(results);
+                })
+                .catch((error) => {
+                    addAlert('error', 'Erreur lors de la recherche d\'utilisateurs.');
+                });
+        } else {
+            setSearchResults([]);
+        }
+    }
+
     return (
         <div className="min-w-screen min-h-screen  bg-linear-to-br from-left-gradient to-right-gradient">
             <Navbar isSearchPage={false} alerts={alerts} onCloseAlert={onCloseAlert} />
@@ -166,6 +186,65 @@ export default function AddVideo() {
                             <option value="private">Privé</option>
                         </select>
 
+
+
+
+
+
+
+
+
+                        {
+                            visibility == "private" && (
+                                <div className="mb-4">
+                                    <label className="block text-white text-xl font-montserrat font-semibold mb-2" htmlFor="authorizedUsers">Utilisateurs autorisés</label>
+                                    <div>
+                                        <input
+                                            type="text"
+                                            id="authorizedUsers"
+                                            name="authorizedUsers"
+                                            className="w-full p-2 mb-4 glassmorphism focus:outline-none font-inter text-xl text-white"
+                                            placeholder="Rechercher un utilisateur"
+                                            value={searchUser}
+                                            onChange={(e) => setSearchUser(e.target.value)}
+                                            onKeyDown={(e) => {
+                                                if (e.key === 'Enter' && searchUser.trim() !== "") {
+                                                    onUserSearch(e);
+                                                }
+                                            }}
+                                        />
+                                        <div>
+
+                                        </div>
+                                    </div>
+                                    <div className="max-h-40 overflow-y-auto">
+                                        {authorizedUsers.map((user, index) => (
+                                            <div key={index} className="flex items-center justify-between p-2 border-b border-gray-700">
+                                                <span className="text-white">{user}</span>
+                                                <button
+                                                    className="text-red-500"
+                                                    onClick={() => setAuthorizedUsers(authorizedUsers.filter((u) => u !== user))}
+                                                >
+                                                    Supprimer
+                                                </button>
+                                            </div>
+                                        ))}
+                                    </div>
+                                </div>
+                            )
+                        }
+
+
+
+
+
+
+
+
+
+
+
+
                         <label className="block text-white text-xl font-montserrat font-semibold mb-2" htmlFor="videoThumbnail">Miniature</label>
                         <input
                             type="file"
diff --git a/frontend/src/services/user.service.js b/frontend/src/services/user.service.js
index 59486ca..1dec4c6 100644
--- a/frontend/src/services/user.service.js
+++ b/frontend/src/services/user.service.js
@@ -122,4 +122,23 @@ export async function verifyEmail(email, token, addAlert) {
         console.error("Error verifying email:", error);
         addAlert('error', "Erreur lors de la vérification de l'email.");
     }
+}
+
+export async function searchByUsername(username, token, addAlert) {
+    try {
+        const response = await fetch(`/api/users/search?username=${encodeURIComponent(username)}`, {
+            method: "GET",
+            headers: {
+                "Authorization": `Bearer ${token}`,
+            }
+        });
+        if (!response.ok) {
+            throw new Error("Failed to search user");
+        }
+        const data = await response.json();
+        return data;
+    } catch (error) {
+        console.error("Error searching user by username:", error);
+        addAlert('error', "Erreur lors de la recherche de l'utilisateur.");
+    }
 }
\ No newline at end of file