This is the license that governs the assets and illustrations included in unDraw X. You can find the actual license below but the gist is that you can use the illustrations through Adobe Creative Cloud applications in any project, commercial or personal without attribution or any cost. Just don’t try to replicate unDraw, unDraw X, redistribute in packs the illustrations or create integrations for it.

Full license text

Copyright 2021 · Katerina Limpitsouni

All images, assets and vectors published on unDraw X can be used for free unless stated. You can use them for noncommercial and commercial purposes. You do not need to ask permission from or provide credit to the creator or unDraw. More precisely, unDraw grants you an nonexclusive, worldwide copyright license to synchronize copies to your Adobe Creative Cloud Libraries, modify, distribute, perform, and use the assets provided from unDraw X for free, including for commercial purposes, without permission from or attributing the creator or unDraw X. This license does not include the right to compile assets, vectors or images from unDraw X to replicate a similar or competing service, in any form or distribute the assets in packs or otherwise. This extends to automated and non-automated ways to link, embed, scrape, search or download the assets included on the website without our consent.

Regarding brand logos that are included:

Are registered trademarks of their respected owners. Are included on a promotional basis and do not represent an association with unDraw or its users. Do not indicate any kind of endorsement of the trademark holder towards unDraw, nor vice versa. Are provided with the sole purpose to represent the actual brand/service/company that has registered the trademark and must not be used otherwise.