diff --git a/cypress/integration/errors.spec.js b/cypress/integration/errors.spec.js
--- a/cypress/integration/errors.spec.js
+++ b/cypress/integration/errors.spec.js
@@ -124,7 +124,7 @@
   });
 
   context('For invalid data', function() {
-    it(`should display 400 for invalid checksum for 
+    it(`should display 400 for invalid checksum for
         directory, snapshot, revision, content`, function() {
       const types = ['directory', 'snapshot', 'revision', 'content'];
       for (let type of types) {
diff --git a/swh/web/api/views/identifiers.py b/swh/web/api/views/identifiers.py
--- a/swh/web/api/views/identifiers.py
+++ b/swh/web/api/views/identifiers.py
@@ -24,7 +24,7 @@
         identifier is valid, the existence of the object in the archive
         will also be checked.
 
-        :param string swh_id: a Software Heritage presistent identifier
+        :param string swh_id: a Software Heritage persistent identifier
 
         :>json string browse_url: the url for browsing the pointed object
         :>json object metadata: object holding optional parts of the persistent identifier
diff --git a/swh/web/assets/config/bootstrap-pre-customize.scss b/swh/web/assets/config/bootstrap-pre-customize.scss
--- a/swh/web/assets/config/bootstrap-pre-customize.scss
+++ b/swh/web/assets/config/bootstrap-pre-customize.scss
@@ -5,7 +5,7 @@
  * See top-level LICENSE file for more information
  */
 
-// override some global boostrap sass variables before generating stylesheets
+// override some global bootstrap sass variables before generating stylesheets
 
 // global text colors and fonts
 $body-color: rgba(0, 0, 0, 0.55);
diff --git a/swh/web/assets/config/webpack.config.development.js b/swh/web/assets/config/webpack.config.development.js
--- a/swh/web/assets/config/webpack.config.development.js
+++ b/swh/web/assets/config/webpack.config.development.js
@@ -100,7 +100,7 @@
     // enable to serve static assets not managed by webpack
     contentBase: path.resolve('./swh/web/'),
     // we do not use hot reloading here (as a framework like React needs to be used in order to fully benefit from that feature)
-    // and prefere to fully reload the frontend application in the browser instead
+    // and prefer to fully reload the frontend application in the browser instead
     hot: false,
     inline: true,
     historyApiFallback: true,
diff --git a/swh/web/browse/views/directory.py b/swh/web/browse/views/directory.py
--- a/swh/web/browse/views/directory.py
+++ b/swh/web/browse/views/directory.py
@@ -116,10 +116,10 @@
 
     sum_file_sizes = filesizeformat(sum_file_sizes)
 
-    dir_metadata = {'directory': sha1_git,
-                    'number of regular files': len(files),
-                    'number of subdirectories': len(dirs),
-                    'sum of regular file sizes': sum_file_sizes}
+    dir_metadata = {"directory": sha1_git,
+                    "number of regular files": len(files),
+                    "number of subdirectories": len(dirs),
+                    "sum of regular file sizes": sum_file_sizes}
 
     vault_cooking = {
         'directory_context': True,
diff --git a/swh/web/browse/views/utils/snapshot_context.py b/swh/web/browse/views/utils/snapshot_context.py
--- a/swh/web/browse/views/utils/snapshot_context.py
+++ b/swh/web/browse/views/utils/snapshot_context.py
@@ -326,16 +326,16 @@
     browse_rev_link = gen_revision_link(revision_id)
     browse_snp_link = gen_snapshot_link(snapshot_id)
 
-    dir_metadata = {'directory': sha1_git,
-                    'context-independent directory': browse_dir_link,
-                    'number of regular files': nb_files,
-                    'number of subdirectories': nb_dirs,
-                    'sum of regular file sizes': sum_file_sizes,
-                    'path': dir_path,
-                    'revision': revision_id,
-                    'context-independent revision': browse_rev_link,
-                    'snapshot': snapshot_id,
-                    'context-independent snapshot': browse_snp_link}
+    dir_metadata = {"directory": sha1_git,
+                    "context-independent directory": browse_dir_link,
+                    "number of regular files": nb_files,
+                    "number of subdirectories": nb_dirs,
+                    "sum of regular file sizes": sum_file_sizes,
+                    "path": dir_path,
+                    "revision": revision_id,
+                    "context-independent revision": browse_rev_link,
+                    "snapshot": snapshot_id,
+                    "context-independent snapshot": browse_snp_link}
 
     if origin_info:
         dir_metadata['origin url'] = origin_info['url']
diff --git a/swh/web/templates/includes/take-new-snapshot.html b/swh/web/templates/includes/take-new-snapshot.html
--- a/swh/web/templates/includes/take-new-snapshot.html
+++ b/swh/web/templates/includes/take-new-snapshot.html
@@ -29,7 +29,7 @@
         <div class="modal-body">
           <p>
             If the archived software origin currently browsed is not synchronized with its upstream
-            version (for instance when new commits have been issued), you can explicitely request Software
+            version (for instance when new commits have been issued), you can explicitly request Software
             Heritage to take a new snapshot of it.
           <p>
           </p>
@@ -73,4 +73,4 @@
   </script>
 
 
-{% endif %}
\ No newline at end of file
+{% endif %}