To give your website a modern look , you decide to add illustrations , but unfortunately you don't know how to make Illustrations and you google for illustrations , but chances are your site might be taken down under copyright infringement So here are some websites where you can get Royalty Free Illustrations and Components to Add them to your Website or App

1. uidesigndaily.com

   This amazing Free site for UI Designs is owned by Ildiko . Ildiko is a designer and interface developer based in Bergen, Norway . She started doing daily UI practices back in March 2016, and since then she created more than 1000 designs. She planned on creating a design every week day until she reached 100 days total, to practice consistency and improve her skills. The improvement after the first hundred days was encouraging for her, so she decided to make another hundred focusing on specific areas she was lacking in; and then another hundred, and then many more.

2. 100dailyui.webflow.io

   This library is a kickstart for your next app idea, design system or high fidelity prototype. You can create some pretty awesome projects! What do I get? 1 Figma file containing:1. 14000+ layers of content

   1. 100 ideas to start your next project
   2. Elements & screens to build any type of mobile app
   3. Easily customisable
   4. Free typeface

3. opendoodles.com

   Open Doodles is a set of free illustrations that embraces the idea of Open Design. You can copy, edit, remix, share, or redraw these images for any purpose without restriction under copyright or database law (CC0 license.) I hope that this kind of resource makes it easier for designers to show the value of illustration in their mockups. Maybe you use these images as placeholders, before you're ready to hire an illustrator. Or perhaps this will encourage others to create their own kit and share it with the world.

4. humaaans.com

5. products.ls.graphics

6. error404.fun

   A growing collection of illustrations for your page-not-found message. Choose a scene to inform the user of the error occurred in interesting ways. Use futuristic elements or stay traditional with cute characters. All scenes are compatible with Sketch and Figma.

7. drawkit.io

   Welcome to DrawKit. DrawKit is an illustration framework for Mac OS X. With DrawKit you can quickly add vector drawing and illustration features to your Mac applications. DrawKit is comprehensive, powerful, and complete. The design is modular and can be extended to meet your application’s needs. DrawKit is licensed under the Mozilla Public License 2.0 (MPL2) and can be included in commercial applications. Download the latest DrawKit source code from DrawKit/DrawKit over on github.

8. absurd.design

   absurd.design is a project which comes with a set of free surrealist illustrations. Download surrealist illustrations. Use free vector art for your website and landing pages. Find Aburd.Design digital illustrations at the Digital Design Library and links to digital illustrations and other creative digital resources.

9. undraw.co

   unDraw provides open-source illustrations like this for any project you can imagine and create. Free and without the need for attribution. You can customise the color of this illustration by using the picker on the top-right. Then click download with your preferred format.

10. manypixels.co

    ManyPixels is a simple and affrodable subscription-based, unlimited graphic design service. Get your graphic design team in a few clicks.Your on-demand graphic design service. Simple, fast and affordable.

11. openpeeps.com

    Open Peeps is a hand-drawn illustration library to create scenes of people. You can use them in product illustration, marketing, comics, product states, user flows.The library works like building blocks made of vector arms, legs, and emotions. You can mix these elements to create different Peeps.

12. animaticons.co

    Animaticons are a growing set of beautiful, high-resolution, animated GIF icons that you can customize. They are perfect for websites, emails and presentations.