Bold

`⌘ Cmd` + `B`

All hotkeys for Tumblr

Frequently used shortcuts Reveal the keyboard guide	`↑ Shift` + `?`
Navigation Move forward through posts	`J`
Navigation Move backward through posts	`K`
Frequently used shortcuts Share a post	`S`
Navigation View a post's notes (Use with <keybs>J</keybs> and <keybs>K</keybs> keys)	`N`
Navigation Open a post's blog (Use with <keybs>J</keybs> and <keybs>K</keybs> keys)	`⤶ Enter`
Frequently used shortcuts Search	`/`
Frequently used shortcuts Compose a new post	`Alt` + `C`
Posting (Windows) Fast reblog a post (Use with <keybs>J</keybs> and <keybs>K</keybs> keys)	`Alt` + `R`
Posting (Windows) Add a post to queue (Use with <keybs>J</keybs> and <keybs>K</keybs> keys)	`Alt` + `E`
Frequently used shortcuts Insert GIF	`Ctrl` + `↑ Shift` + `G`
Frequently used shortcuts (Mac) Insert GIF	`⌘ Cmd` + `↑ Shift` + `G`
Navigation Return to top	`.`
Navigation Like current post (Use with <keybs>J</keybs> and <keybs>K</keybs> keys)	`L`
Navigation Follow a recommended blog (Use with <keybs>J</keybs> and <keybs>K</keybs> keys)	`F`
Navigation Reject a recommended blog (Use with <keybs>J</keybs> and <keybs>K</keybs> keys)	`X`
Navigation Search Tumblr	`⭾ Tab`
Navigation Switch between blogs	`Z` + `⭾ Tab`
Navigation (Mac) Switch between blogs	`⌥ Option` + `⭾ Tab`
Posting (Windows) Compose a new post	`Z` then `C`
Posting (Windows) Bold	`Ctrl` + `B`
Posting (Windows) Italic	`Ctrl` + `I`
Posting (Windows) Headline	`Ctrl` + `↑ Shift` + `2`
Posting (Windows) Link	`Ctrl` + `K`
Posting (Windows) Strikethrough	`Ctrl` + `↑ Shift` + `6`
Posting (Windows) Ordered list	`Ctrl` + `↑ Shift` + `7`
Posting (Windows) Unordered list	`Ctrl` + `↑ Shift` + `8`
Posting (Windows) Blockquote	`Ctrl` + `↑ Shift` + `9`
Posting (Windows) Remove formatting	`Ctrl` + `↑ Shift` + `0`
Posting (Windows) Preformatted text	`Ctrl` + `↑ Shift` + `X`
Posting (Windows) Superscript	`Ctrl` + `.`
Posting (Windows) Subscript	`Ctrl` + `,`
Posting (Windows) Small text	`Ctrl` + `↑ Shift` + `-`
Posting (Windows) Insert photo	`Ctrl` + `↑ Shift` + `P`
Posting (Windows) Insert video	`Ctrl` + `↑ Shift` + `M`
Posting (Windows) Insert horizontal line	`Ctrl` + `↑ Shift` + `L`
Posting (Windows) Insert read-more link	`Ctrl` + `↑ Shift` + `K`
Posting (Mac) Compose a new post	`⌥ Option` + `C`
Posting (Mac) Fast reblog a post (Use with <keybs>J</keybs> and <keybs>K</keybs> keys)	`⌥ Option` + `R`
Posting (Mac) Add a post to queue (Use with <keybs>J</keybs> and <keybs>K</keybs> keys)	`⌥ Option` + `E`
Posting (Mac) Bold	`⌘ Cmd` + `B`
Posting (Mac) Italic	`⌘ Cmd` + `I`
Posting (Mac) Headline	`⌘ Cmd` + `↑ Shift` + `2`
Posting (Mac) Link	`⌘ Cmd` + `K`
Posting (Mac) Strikethrough	`⌘ Cmd` + `↑ Shift` + `6`
Posting (Mac) Ordered list	`⌘ Cmd` + `↑ Shift` + `7`
Posting (Mac) Unordered list	`⌘ Cmd` + `↑ Shift` + `8`
Posting (Mac) Blockquote	`⌘ Cmd` + `↑ Shift` + `9`
Posting (Mac) Remove formatting	`⌘ Cmd` + `↑ Shift` + `0`
Posting (Mac) Preformatted text	`⌘ Cmd` + `↑ Shift` + `X`
Posting (Mac) Superscript	`⌘ Cmd` + `.`
Posting (Mac) Subscript	`⌘ Cmd` + `,`
Posting (Mac) Small	`⌘ Cmd` + `↑ Shift` + `-`
Posting (Mac) Insert photo	`⌘ Cmd` + `↑ Shift` + `P`
Posting (Mac) Insert video	`⌘ Cmd` + `↑ Shift` + `M`
Posting (Mac) Insert horizontal line	`⌘ Cmd` + `↑ Shift` + `L`
Posting (Mac) Insert read-more link	`⌘ Cmd` + `↑ Shift` + `K`