Rembering Knowing all the helpers Ruby on Rails provides is hard. Trying to find Rails helpers when you’re not sure what you’re looking for is even harder. I’ve put together the complete list of helpers available in Ruby on Rails 5.0.2

Ruby on Rails Helpers (Modules):

AssetTag

• audio_tag
• auto_discovery_link_tag
• favicon_link_tag
• image_alt
• image_tag
• javascript_include_tag
• stylesheet_link_tag
• video_tag

AssetUrl

• asset_path
• asset_url
• audio_path
• audio_url
• compute_asset_extname
• compute_asset_host
• compute_asset_path
• font_path
• font_url
• image_path
• image_url
• javascript_path
• javascript_url
• path_to_asset (asset_path alias)
• path_to_audio (audio_path alias)
• path_to_font (font_path alias)
• path_to_image (image_path alias)
• path_to_javascript (javascript_path alias)
• path_to_stylesheet (stylesheet_path_alias)
• path_to_video (video_path_alias)
• stylesheet_path
• stylesheet_url
• url_to_asset (asset_url alias)
• url_to_audio (audio_url alias)
• url_to_font (font_url alias)
• url_to_image (image_url alias)
• url_to_javascript (javascript_url alias)
• url_to_stylesheet (stylesheet_url_alias)
• url_to_video (video_url_alias)
• video_path
• video_url

AtomFeed

• atom_feed

Cache

• cache
• cache_fragment_name
• cache_if
• cache_unless

Capture

• capture
• content_for
• content_for?
• provide

Csrf

• csrf_meta_tag (csrf_meta_tags alias)
• csrf_meta_tags

Date

• date_select
• datetime_select
• distance_of_time_in_words
• distance_of_time_in_words_to_now
• select_date
• select_datetime
• select_day
• select_hour
• select_minute
• select_month
• select_second
• select_time
• select_year
• time_ago_in_words
• time_select
• time_tag

Debug

• debug

Form

• check_box
• color_field
• date_field
• datetime_field
• datetime_local_field (datetime_field alias)
• email_field
• fields_for
• file_field
• form_for
• hidden_field
• label
• month_field
• number_field
• password_field
• phone_field (telephone_field alias)
• radio_button
• range_field
• search_field
• telephone_field
• text_area
• text_field
• time_field
• url_field
• week_field

FormOptions

• collection_check_boxes
• collection_radio_buttons
• collection_select
• grouped_collection_select
• grouped_options_for_select
• option_groups_from_collection_for_select
• options_for_select
• options_from_collection_for_select
• select
• time_zone_options_for_select
• time_zone_select

FormTag

• button_tag
• check_box_tag
• color_field_tag
• date_field_tag
• datetime_field_tag
• datetime_local_field_tag (datetime_field_tag alias)
• email_field_tag
• field_set_tag
• file_field_tag
• form_tag
• hidden_field_tag
• image_submit_tag
• label_tag
• month_field_tag
• number_field_tag
• password_field_tag
• phone_field_tag (telephone_field_tag alias)
• radio_button_tag
• range_field_tag
• search_field_tag
• select_tag
• submit_tag
• telephone_field_tag
• text_area_tag
• text_field_tag
• time_field_tag
• url_field_tag
• utf8_enforcer_tag
• week_field_tag

Javascript

• escape_javascript
• j (escape_javascript alias)
• javascript_tag

Number

• number_to_currency
• number_to_human
• number_to_human_size
• number_to_percentage
• number_to_phone
• number_with_delimiter
• number_with_precision

OutputSafety

• raw
• safe_join
• to_sentence

RecordTag

• content_tag_for
• div_for

Rendering

• _layout_for
• render

Sanitize

• sanitize
• sanitize_css
• strip_links
• strip_tags

Tag

• cdata_section
• content_tag
• escape_once
• tag

Text

• concat
• current_cycle
• cycle
• excerpt
• highlight
• pluralize
• reset_cycle
• safe_concat
• simple_format
• truncate
• word_wrap

Translate

• l (localize alias)
• localize
• t (translate alias)
• translate

Url

• button_to
• current_page?
• link_to
• link_to_if
• link_to_unless
• link_to_unless_current
• mail_to

Ruby on Rails Helpers (Classes):

FormBuilder

• _to_partial_path
• button
• check_box
• collection_check_boxes
• collection_radio_buttons
• collection_select
• date_select
• datetime_select
• emitted_hidden_id?
• fields_for
• file_field
• grouped_collection_select
• hidden_field
• label
• multipart=
• new
• radio_button
• select
• submit
• time_select
• time_zone_select
• to_model
• to_partial_path