System keys

• Ctrl + O: Open file
• Ctrl + S: Save Current Webpage
• Ctrl + Alt + S: Save copy of page with all images and elements
• Ctrl + P: Print page
• Ctrl + Q: Close Opera
• Ctrl + H: Hide Opera

Text keys

• Editing
• Ctrl + Z: Undo recent changes
• Ctrl + Y: Redo recent changes
• Ctrl + C + Ctrl + Insert: Copy selection to clipboard
• Ctrl + X or · Shift + Delete: Move selection to clipboard
• Ctrl + V or Shift + Insert:  Paste from clipboard
• Ctrl + Shift + C: Copy selected text to "Notes" panel
• Ctrl + Shift + V: Copy text in clipboard to "Notes" panel
• Ctrl + A: Select all
• Delete: Delete selection (or character right of cursor)
• Backspace: Delete selection (or character left of cursor)
• Ctrl + B: Toggle text-style bold
• Ctrl + I: Toggle text-style italic
• Ctrl + U: Toggle text-style underline

Find

• Ctrl + F: Find text
• Ctrl + G or F3: Find next instance of a  text
• Ctrl + Shift + G or Shift + F3: Find previous instance of text
• , (comma) Shift + (numeric) /:  Search for text in links in page (press F9 first to set focus on page)
• . (period)  (numeric) /: Search for text in page (press F9 first to set focus on page)

 

Loading keys

Access

• Ctrl + Space or Alt + Home: Go to your home page
• F2: Enter a Web address
• Ctrl + B: Paste and go in current or new tab
• Ctrl + Shift + B: Paste and go in background tab
• Shift + F2: Enter nickname for fast bookmark access
• Ctrl + D: Save page address as new bookmark
• Ctrl + Shift + D: Save as new bookmark in active bookmark folder

 

Transmission

• Ctrl + R or F5: Reload (get latest version of) page
• Alt + F5 or Ctrl + Shift + R: Reload selected frame
• Ctrl + F5 or Ctrl + Alt + R: Reload all open pages
• Esc: Stop page loading
• V: Read selected text using voice function
• Esc: Cancel current voice prompt

 

Navigation keys

History

• X or Ctrl + →  or Alt + →  or Ctrl + ]: Go to next page in history
• Z or Ctrl + ← or Alt + ←  or Backspace  or Ctrl + [: Go to previous page in history
• Shift + Z: Rewind
• Space  or Shift + X  or Shift + Backspace: Fast Forward
• Alt + X: Show entire forward history
• Alt + Z: Show entire backward history

Display modes

• I: Load and display all images
• Shift + I: Toggle loading of images
• Shift + G: Toggle between "Author mode" and "User mode"
• Shift + P: Preview page as if printed
• F11: Use entire screen for browsing
• Ctrl + F11: Toggle "Fit to width"
• Shift + F11: Pretend to be small-screen device

Source

• Ctrl + F3: View page source
• Alt + F3: View source of active frame
• Ctrl + Alt + V: Validate source of active page or frame
• Ctrl + Alt + Shift + V: Validate source of active page or frame in the background

Panel keys: activation

• 
  F4: Toggle last active panel with panel selector
• Shift + F4: Toggle last active panel
• F7: Activate panels for keyboard navigation
• Shift + →: Expand all folders/views in panel
• Shift + ←: Collapse all folders/views in panel
• Ctrl + 1: Open "Search" panel
• Ctrl + 2: Open "Bookmarks" panel
• Ctrl + 3: Open "Mail" panel
• Ctrl + 4: Open "Contacts" panel
• Ctrl + 5: Open "Chat" panel
• Ctrl + 6: Open "Notes" panel
• Ctrl + 7: Open "Transfers" panel
• Ctrl + 8: Open "History" panel
• Ctrl + 9: Open "Links" panel
• Ctrl + 0: Open "Windows" panel

Manager pages

• Ctrl + Shift + 1: Manage view for search panel
• Ctrl + Shift + 2 or Ctrl + Alt + B : Manage bookmarks
• Ctrl + Shift + 3 or Ctrl + Alt + M: Manage e-mail
• Ctrl + Shift + 4 or Ctrl + Alt + O: Manage contacts
• Ctrl + Shift + 5: Manage view for chat panel
• Ctrl + Shift + 6 or Ctrl + Alt + E: Manage notes
• Ctrl + Shift + 7 or Ctrl + Alt + T: Manage transfers
• Ctrl + Shift + 8 or Ctrl + Alt + H: Manage history
• Ctrl + Shift + 9 or Ctrl + Alt + L  or Ctrl + J: Manage links

E-mail keys: reading and sending

Basics

• Ctrl + K: Check e-mail
• Ctrl + E: Write new message
• Ctrl + S: Save message draft (continue later)
• Ctrl + Shift + K: Upload queued messages to mail server
• Ctrl + Shift + S: Send composed message

Navigation

• J: Go to next message
• U: Go to previous message   
• H or Shift + J: Go to next unread message   
• Y or Shift + U: Go to previous unread message   
• Shift + Space: Move one screen-full up   
• Space: Move one screen-full down, then go to next unread   
• Alt + ↑: Scroll up in message body (even if focus on message list)   
• Alt + ↓: Scroll down in message body (even if focus on message list)   
• F8: Set focus to message list   
• F9 : Set focus to message   
• Shift + →: Threads Expand all threads   
• Shift + ←: Collapse all threads   
• M: Mark thread as read   
• N: Mark thread as read, go to next unread   

Chat keys

• Ctrl + Alt + J: Download and list available rooms on chat server
• Ctrl + Shift + J: Type name of chat room to join
• Shift + F9: Set focus to chat input field

Threads

• Shift + →: Expand all threads
• Shift + ←: Collapse all threads
• M: Mark thread as read
• N: Mark thread as read, go to next unread

Help keys

• F1: Open Opera's help window
• Ctrl + F: Search while viewing help page

E-mail keys: managing

Marking

• K: Mark selected message as read
• G: Mark selected message as read, and go to next unread e-mail
• T: Mark selected message as read, and go to previous unread e-mail
• Shift + K: Mark selected message as unread
• Ctrl + Shift + A: Mark all messages in active view as read

Responding

• R: Reply to message
• Shift + R: Reply to all recipients of message, including sender
• F: Forward message
• D: Redirect message
• Enter: Continue editing message (Drafts, Outbox, and Sent views)
• Q or Shift + F9: Focus "Quick reply" field

Handling

• A: Save sender's address as new contact
• Shift + S: Save attachments
• L, 1-7: Label message (for example important or funny)
• E: View all messages associated with sender
• C: Copy raw message data to clipboard

Viewing

• I: Toggle different layout of message list and message body