diff --git a/config/settings.py b/config/settings.py
index 44ca711..527d475 100644
--- a/config/settings.py
+++ b/config/settings.py
@@ -99,9 +99,9 @@ STORAGES = {
 MEDIA_URL = '/media/'
 MEDIA_ROOT = BASE_DIR / 'media'
 
-# File upload limits
-FILE_UPLOAD_MAX_MEMORY_SIZE = 104857600  # 100MB
-DATA_UPLOAD_MAX_MEMORY_SIZE = 104857600  # 100MB
+# File upload limits (no limit)
+FILE_UPLOAD_MAX_MEMORY_SIZE = 10737418240  # 10GB
+DATA_UPLOAD_MAX_MEMORY_SIZE = 10737418240  # 10GB
 
 DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
 
diff --git a/files/models.py b/files/models.py
index a8869bb..9e9f853 100644
--- a/files/models.py
+++ b/files/models.py
@@ -37,8 +37,8 @@ class SharedSpace(models.Model):
     password_hash = models.CharField(max_length=128)
     is_active = models.BooleanField(default=True)
     max_file_size_mb = models.PositiveIntegerField(
-        default=100,
-        help_text="Maximum file size in MB for uploads"
+        default=0,
+        help_text="Maximum file size in MB for uploads (0 = unlimited)"
     )
     created_at = models.DateTimeField(auto_now_add=True)
     updated_at = models.DateTimeField(auto_now=True)
diff --git a/portal/templates/portal/shared_space/home.html b/portal/templates/portal/shared_space/home.html
index a726f4c..5041db2 100644
--- a/portal/templates/portal/shared_space/home.html
+++ b/portal/templates/portal/shared_space/home.html
@@ -184,7 +184,7 @@
 <div class="upload-zone" id="uploadZone">
     <div class="upload-icon">+</div>
     <p>Drop files here or click to select</p>
-    <p class="mt-1 text-muted">Max file size: {{ space.max_file_size_mb }}MB</p>
+    <p class="mt-1 text-muted">{% if space.max_file_size_mb > 0 %}Max file size: {{ space.max_file_size_mb }}MB{% else %}No file size limit{% endif %}</p>
     <input type="file" id="fileInput" multiple>
 </div>
 
@@ -210,7 +210,7 @@
 const uploadZone = document.getElementById('uploadZone');
 const fileInput = document.getElementById('fileInput');
 const results = document.getElementById('results');
-const maxSize = {{ space.max_file_size_mb }} * 1024 * 1024;
+const maxSize = {{ space.max_file_size_mb }} * 1024 * 1024; // 0 = unlimited
 
 // Click to select
 uploadZone.addEventListener('click', () => fileInput.click());
@@ -252,8 +252,8 @@ function formatBytes(bytes) {
 function uploadFile(file) {
     const itemId = 'upload-' + Date.now() + Math.random().toString(36).substr(2, 9);
 
-    // Check file size before upload
-    if (file.size > maxSize) {
+    // Check file size before upload (skip if unlimited)
+    if (maxSize > 0 && file.size > maxSize) {
         const item = document.createElement('div');
         item.className = 'result-item error';
         item.innerHTML = `
diff --git a/portal/templates/portal/upload.html b/portal/templates/portal/upload.html
index dfb7e5e..e03dd0a 100644
--- a/portal/templates/portal/upload.html
+++ b/portal/templates/portal/upload.html
@@ -32,7 +32,7 @@
     <div class="upload-icon">+</div>
     <h2>Drop files here to upload</h2>
     <p>or click to select files</p>
-    <p class="mt-1 text-muted">Max file size: 100MB</p>
+    <p class="mt-1 text-muted">No file size limit</p>
     <input type="file" id="fileInput" multiple>
 </div>
 
diff --git a/portal/views_shared_space.py b/portal/views_shared_space.py
index ebdba0c..5ca8d84 100644
--- a/portal/views_shared_space.py
+++ b/portal/views_shared_space.py
@@ -64,11 +64,12 @@ class SharedSpaceUploadAPIView(View):
 
         uploaded_file = request.FILES['file']
 
-        max_size_bytes = space.max_file_size_mb * 1024 * 1024
-        if uploaded_file.size > max_size_bytes:
-            return JsonResponse({
-                'error': f'File too large. Maximum size is {space.max_file_size_mb}MB'
-            }, status=400)
+        if space.max_file_size_mb > 0:
+            max_size_bytes = space.max_file_size_mb * 1024 * 1024
+            if uploaded_file.size > max_size_bytes:
+                return JsonResponse({
+                    'error': f'File too large. Maximum size is {space.max_file_size_mb}MB'
+                }, status=400)
 
         title = request.POST.get('title', '') or uploaded_file.name
         description = request.POST.get('description', '')