The recap

Everything on Last Words' death recap - who killed you, damage per source, what was stopped, every hit, what you dealt and where you died - and sharing it.

The recap covers the last 10 seconds before you died by default. You can show anything from 1 to 30 seconds in your settings, up to what the server allows. The top of the panel says how long it covers (“last 10s”).

Where it opens

On a normal window, the panel sits beside the death screen’s buttons, on the side you choose in your settings.
On a small window (GUI scale 2 at 854x480, say) there isn’t room, so a ☠ Last Words tab in the top corner opens it over the screen. Click outside it or the × to close it.
With the doImmediateRespawn game rule there’s no death screen at all, so the chat line has a [Recap] link that opens it.
/lastwords opens the recap of your last death again any time, with your older deaths behind it.

Killed by

The card at the top shows who killed you: a player’s face, a mob’s spawn egg, or an icon for the damage if nothing was behind it. Under it:

The weapon they used (“with Iron Sword”). Hover it for the item’s tooltip.
The health they had left (“❤ 15.1 / 20 left”), or “☠ Died too” if they didn’t make it either.
What you dealt them (“⚔ You dealt 4.9”).

If nothing struck the last blow (you fell, burned or hit the void after being knocked about), the mob or player who set it up is blamed, as vanilla does. The card then says Finished off while fighting them, and names the Final blow (“Final blow: Lava”).

Damage taken

The total, and a bar per source, biggest first:

Each player and each named mob has its own line.
Unnamed mobs are grouped by kind: three zombies are one “Zombie” line, marked ×3.
Damage with no one behind it is grouped by type: Fall, Lava, Drowning, or a modded type.

Hover a line for how many hits it was and how much they did.

Stopped

What kept some of the damage off you, in total:

Armour, Enchantments (Protection and the like), Effects (Resistance) and your Shield.
Natural resistance, and Other mods’ armour and resistances.
Absorption hearts: what they soaked up.

Next time

Up to two tips on what would have saved you. See Next time.

Hits

Every hit, newest first, with how long before your death it landed (“0s”, “-1s”, “-2s”); the one that killed you is marked with a skull. Hover a hit for the full breakdown:

where it came from and when,
how hard it hit,
each thing that stopped some of it, and anything other mods changed,
the absorption hearts it took, and the health it took.

You can hide the list in your settings.

Damage you dealt

What you did back in the same window: to your killer (also on the card), and to everything else you hit.

Where you died

The footer shows the dimension and coordinates with a Copy button, and Items (4): 4:59: how many item stacks you dropped and how long until they despawn. If a grave mod made a grave, the footer says where the grave is instead.

A chat line that only you see has the coordinates too (“Died at [18, -60, 5] in Overworld”): click them to copy. You can turn the chat line off in your settings.

The Share button, or /lastwords share, posts your death to chat for everyone.

On a server with Last Words, it’s one line, such as “Taylor died to Zombie with Iron Sword (15/20) - 22 damage in 3 hits [details]”, with the whole recap in the hover. It’s made from the server’s own copy of your death, so it can’t be faked.
Each player can share once every 30 seconds (the server’s shareCooldownSeconds), and the server can turn sharing off.
On a server without Last Words, or for an older death, it’s an ordinary chat message from you.

When the server doesn’t send a recap

On a server without Last Words (or one that has sendToClients turned off), your own game measures what it can, and the panel says so: “Measured by your game”. Your killer, their weapon and health, every hit and its source, and where you died are all there. What armour and the like stopped, the damage you dealt, the tips and the items timer aren’t known. See servers and modpacks.