diff --git a/app/helpers/blob_helper.rb b/app/helpers/blob_helper.rb
index 23d6684a8e6..06beeebe2ba 100644
--- a/app/helpers/blob_helper.rb
+++ b/app/helpers/blob_helper.rb
@@ -31,12 +31,13 @@ module BlobHelper
     edit_button_tag(blob,
                     common_classes,
                     _('Edit'),
-                    edit_blob_path(project, ref, path, options),
+                    Feature.enabled?(:web_ide_default) ? ide_edit_path(project, ref, path, options) : edit_blob_path(project, ref, path, options),
                     project,
                     ref)
   end
 
   def ide_edit_button(project = @project, ref = @ref, path = @path, options = {})
+    return unless Feature.enabled?(:web_ide_default)
     return unless blob = readable_blob(options, path, project, ref)
 
     edit_button_tag(blob,
diff --git a/changelogs/unreleased/web-ide-default-editor.yml b/changelogs/unreleased/web-ide-default-editor.yml
new file mode 100644
index 00000000000..b98be5c16c2
--- /dev/null
+++ b/changelogs/unreleased/web-ide-default-editor.yml
@@ -0,0 +1,5 @@
+---
+title: Make the Web IDE the default editor
+merge_request:
+author:
+type: added
diff --git a/spec/features/projects/blobs/edit_spec.rb b/spec/features/projects/blobs/edit_spec.rb
index 1522a3361a1..828f6f9921e 100644
--- a/spec/features/projects/blobs/edit_spec.rb
+++ b/spec/features/projects/blobs/edit_spec.rb
@@ -9,6 +9,10 @@ describe 'Editing file blob', :js do
   let(:file_path) { project.repository.ls_files(project.repository.root_ref)[1] }
   let(:readme_file_path) { 'README.md' }
 
+  before do
+    stub_feature_flags(web_ide_default: false)
+  end
+
   context 'as a developer' do
     let(:user) { create(:user) }
     let(:role) { :developer }
diff --git a/spec/features/projects/files/user_creates_files_spec.rb b/spec/features/projects/files/user_creates_files_spec.rb
index a4f94b7a76d..dd2964c2186 100644
--- a/spec/features/projects/files/user_creates_files_spec.rb
+++ b/spec/features/projects/files/user_creates_files_spec.rb
@@ -12,6 +12,8 @@ describe 'Projects > Files > User creates files' do
   let(:user) { create(:user) }
 
   before do
+    stub_feature_flags(web_ide_default: false)
+
     project.add_maintainer(user)
     sign_in(user)
   end
diff --git a/spec/features/projects/files/user_edits_files_spec.rb b/spec/features/projects/files/user_edits_files_spec.rb
index 9eb65ec159c..ec3930c26db 100644
--- a/spec/features/projects/files/user_edits_files_spec.rb
+++ b/spec/features/projects/files/user_edits_files_spec.rb
@@ -9,6 +9,8 @@ describe 'Projects > Files > User edits files', :js do
   let(:user) { create(:user) }
 
   before do
+    stub_feature_flags(web_ide_default: false)
+
     sign_in(user)
   end
 
diff --git a/spec/helpers/blob_helper_spec.rb b/spec/helpers/blob_helper_spec.rb
index f709f152c92..2bc3933809f 100644
--- a/spec/helpers/blob_helper_spec.rb
+++ b/spec/helpers/blob_helper_spec.rb
@@ -50,12 +50,20 @@ describe BlobHelper do
     end
 
     it 'returns a link with the proper route' do
+      stub_feature_flags(web_ide_default: false)
       link = edit_blob_button(project, 'master', 'README.md')
 
       expect(Capybara.string(link).find_link('Edit')[:href]).to eq("/#{project.full_path}/edit/master/README.md")
     end
 
+    it 'returns a link with a Web IDE route' do
+      link = edit_blob_button(project, 'master', 'README.md')
+
+      expect(Capybara.string(link).find_link('Edit')[:href]).to eq("/-/ide/project/#{project.full_path}/edit/master/-/README.md")
+    end
+
     it 'returns a link with the passed link_opts on the expected route' do
+      stub_feature_flags(web_ide_default: false)
       link = edit_blob_button(project, 'master', 'README.md', link_opts: { mr_id: 10 })
 
       expect(Capybara.string(link).find_link('Edit')[:href]).to eq("/#{project.full_path}/edit/master/README.md?mr_id=10")