Super old blueprint string import. Unoriginal mod. Shamelessly yoinked from: https://mods.factorio.com/mod/blueprint-string
Have room in inventory. No guarantees that any of this will work.

[A] blueprint string mod. Now that blueprint strings are built into the game, this mod is only useful for importing blueprints created in Factorio 0.14 and earlier.
Importing Blueprints:

1.Craft an empty blueprint.
2.Click the button to show the panel.
3.Copy a blueprint string from your friend.
4.Paste the blueprint string in the text box.
5.Click The folder icon

Features

Blueprints created before Factorio 0.12.32 are slightly out of position. Click the button while holding a blueprint to fix them. It may take several clicks to fix rail blueprints.
Changelog:
11.0.1
second patching for random person
pls don't report bugs >_>