diff --git a/boards/forms.py b/boards/forms.py
--- a/boards/forms.py
+++ b/boards/forms.py
@@ -126,7 +126,7 @@ class PostForm(NeboardForm):
         return title
 
     def clean_text(self):
-        text = self.cleaned_data['text']
+        text = self.cleaned_data['text'].strip()
         if text:
             if len(text) > board_settings.MAX_TEXT_LENGTH:
                 raise forms.ValidationError(_('Text must have less than %s '
@@ -217,7 +217,7 @@ class ThreadForm(PostForm):
         max_length=100, label=_('Tags'))
 
     def clean_tags(self):
-        tags = self.cleaned_data['tags']
+        tags = self.cleaned_data['tags'].strip()
 
         if tags:
             if not self.regex_tags.match(tags):