1.IRA Design
You have the option to choose, play and mix 5 gradient colors to suit each character you want to use in your project. Lots of topics to choose from characters, objects, backgrounds, etc.
https://iradesign.io/illustrations
2.unDraw
A design project with beautiful SVG images that you can use for free. You can select the dominant colour of the illustrations, so you can easily adapt them to your designs.
https://undraw.co/illustrations
3.DrawKit
Awesome hand-drawn vector illustration and icon resources. The illustrations are sorted via thematic packs, including up to 100 illustrations per pack.
4.Ouch
Ouch helps creators unable to draw overcome the lack of quality graphics. Download free PNG and SVG illustrations to enhance your product.
https://icons8.com/illustrations
5.Illu-station
An easy-to-use site, with lots of quality illustrations. Similar to unDraw, users can also set the main colour to adjust illustrations to the theme of your project.
https://themeisle.com/illustrations/
6.Humaaans
Mix-&-match illustrations of people. Change the hairdos, tops, pants, etc. Rotate and position the elements in your humans however you like.
7.Glaze
Illustrations are sorted across categories such as people, places, teamwork, animals, mindfulness, business, health, technology, etc. Free illustrations are available as PNG.
8.Blush design
Choose a collection from multiple styles, play around with the variations until you create the art that tells your story, and download a PNG or SVG of your creation.
9.Open Doodles
A unique collection of vector illustrations based on hand-drawn sketches. Download the source files or play with the Generator to create your own.
10.ManyPixels
Various illustration types such as outline, monochromatic, isometric, flatline, and two-color. Users are allowed to set the main color for the illustrations to adjust to your specific design.
https://www.manypixels.co/gallery
11.Skribbl
A growing collection of freely usable, hand-drawn illustrations brought to you by a global community of aspiring creatives.
12.Storyset
Awesome free customizable illustrations for your next project. Thanks to their online editor, you can even animate the illustrations to give them some life.
13.Illustratious
A nice collection of colorful illustrations and animated Lottie files.
https://illustratious.com/?category=illustration&premium=false
14.OpenPeeps
Hand-drawn people illustrations. The library works like building blocks made of vector arms, legs, and emotions. You can mix these elements to create different Peeps.
15.Absurd design
If you are looking for something out of the box and want to stand out of the crowd, then these illustrations are highly recommended to you.
16.LukaszAdam Illustrations
Download the illustration pack created by an illustrator, designer & developer Lukasz Adam. Free for commercial and personal use under the MIT license.
https://lukaszadam.com/illustrations
That’s a Wrap Please Follow & upvote If It Helped You In Anyway Thank You!