diff --git a/README.md b/README.md
index d000daf..fd919db 100644
--- a/README.md
+++ b/README.md
@@ -159,7 +159,7 @@ If there are duplicate connection names from same source, warning will be shown
 
 ## Settings
 
-An overview of all settings and their default values can be found at `:help vim-dadbod-ui`. 
+An overview of all settings and their default values can be found at `:help vim-dadbod-ui`.
 
 ### Table helpers
 Table helper is a predefined query that is available for each table in the list.
@@ -290,6 +290,7 @@ let g:db_ui_disable_mappings = 1       " Disable all mappings
 let g:db_ui_disable_mappings_dbui = 1  " Disable mappings in DBUI drawer
 let g:db_ui_disable_mappings_dbout = 1 " Disable mappings in DB output
 let g:db_ui_disable_mappings_sql = 1   " Disable mappings in SQL buffers
+let g:db_ui_disable_mappings_javascript = 1   " Disable mappings in Javascript buffers (for Mongodb)
 ```
 
 ## Toggle showing postgres views in the drawer
diff --git a/autoload/db_ui.vim b/autoload/db_ui.vim
index 6971c7a..e549a93 100644
--- a/autoload/db_ui.vim
+++ b/autoload/db_ui.vim
@@ -428,6 +428,10 @@ function! s:dbui.populate_schema_info(db) abort
   let a:db.quote = get(scheme_info, 'quote', 0)
   let a:db.default_scheme = get(scheme_info, 'default_scheme', '')
   let a:db.filetype = get(scheme_info, 'filetype', db#adapter#call(url, 'input_extension', [], 'sql'))
+  " Properly map mongodb js to javascript
+  if a:db.filetype ==? 'js'
+    let a:db.filetype = 'javascript'
+  endif
 endfunction
 
 " Resolve only urls for DBs that are files
diff --git a/doc/dadbod-ui.txt b/doc/dadbod-ui.txt
index adbf2a1..9bfd648 100644
--- a/doc/dadbod-ui.txt
+++ b/doc/dadbod-ui.txt
@@ -645,6 +645,16 @@ g:db_ui_disable_mappings_sql
 		If this is set to `1`, no default mappings for SQL buffers
 		are defined.
 
+		Default value: `0`
+
+					      *g:db_ui_disable_mappings_javascript*
+g:db_ui_disable_mappings_javascript
+		If this is set to `1`, no default mappings for Javascript buffers
+		are defined.
+		Note that these mappings are set only when buffer is created
+		with vim-dadbod-ui, to not interfere with default javascript
+		behavior.
+
 		Default value: `0`
 
 					      *g:db_ui_bind_param_pattern*
diff --git a/ftplugin/javascript.vim b/ftplugin/javascript.vim
new file mode 100644
index 0000000..6ebdb63
--- /dev/null
+++ b/ftplugin/javascript.vim
@@ -0,0 +1,8 @@
+if get(g:, 'db_ui_disable_mappings', 0) || get(g:, 'db_ui_disable_mappings_javascript', 0) || get(b:, 'dbui_db_key_name', '') == ''
+  finish
+endif
+
+call db_ui#utils#set_mapping('<Leader>W', '<Plug>(DBUI_SaveQuery)')
+call db_ui#utils#set_mapping('<Leader>E', '<Plug>(DBUI_EditBindParameters)')
+call db_ui#utils#set_mapping('<Leader>S', '<Plug>(DBUI_ExecuteQuery)')
+call db_ui#utils#set_mapping('<Leader>S', '<Plug>(DBUI_ExecuteQuery)', 'v')
diff --git a/plugin/db_ui.vim b/plugin/db_ui.vim
index 0f63676..3dc178c 100644
--- a/plugin/db_ui.vim
+++ b/plugin/db_ui.vim
@@ -18,6 +18,7 @@ let g:db_ui_disable_mappings = get(g:, 'db_ui_disable_mappings', 0)
 let g:db_ui_disable_mappings_dbui = get(g:, 'db_ui_disable_mappings_dbui', 0)
 let g:db_ui_disable_mappings_dbout = get(g:, 'db_ui_disable_mappings_dbout', 0)
 let g:db_ui_disable_mappings_sql = get(g:, 'db_ui_disable_mappings_sql', 0)
+let g:db_ui_disable_mappings_javascript = get(g:, 'db_ui_disable_mappings_javascript', 0)
 let g:db_ui_table_helpers = get(g:, 'db_ui_table_helpers', {})
 let g:db_ui_auto_execute_table_helpers = get(g:, 'db_ui_auto_execute_table_helpers', 0)
 let g:db_ui_show_help = get(g:, 'db_ui_show_help', 1)