sync with Steam
Import
sync with Epic Games
Import
sync with GOG
Import
import from Playnite
Import
import from IsThereAnyDeal
Import
HLTB
Import
Grouvee
Import
import from text
Import
GG.Deals doesn't offer an export function, and Backloggd has it on their public roadmap. In the meantime, you can try importing a text list.

Import from Epic Games

Epic has no public API, so we're going to read the same endpoint their own site does.
Their newest releases aren't linked on our side yet and fall back to name matching. Please check the outcome.
1. Sign in to Epic Games
Make sure you're signed in at epicgames.com before continuing.
2. Open your order history
Just click this link and you'll get one line of raw text holding every product on your account, freebies included. It's meant to look like that.
3. Copy and paste the contents
Highlight everything with CTRL+A, copy with CTRL+C, and then CTRL+V below.
This will only process 10 entries per page, but there's no other way. 😴
Open the next page and repeat the copy-paste
4. Confirm upload
and wait a few seconds
Done? Check your profile and playlist