Essential Free Tools for Logos, Icons, and Illustrations for Developers

As a developer, you often need visual assets such as logos, icons, and illustrations for blogs, documentation, presentations, or product UI.

Logo

Every product—whether an app, web site, browser extension, IDE plugin, or open‑source project—needs a logo, but many programmers lack design skills.

The recommended approach is to use AI‑generated images, but free AI tools often produce unsatisfactory results.

IconKitchen

This online tool lets you pick an icon that matches your product theme and customize its color, border radius, gradient, background, opacity, and more. You can also add custom text or images, making it suitable for both website logos and app icons.

It generates a decent logo within minutes.

Online address: https://icon.kitchen/

LogoFast

Similar to IconKitchen but with a different style, LogoFast lets you search for a relevant icon, adjust background color, border, angle, and other properties to create a logo.

Online address: https://logofa.st/

It also offers a simple AI generation feature, and the resulting logo can be further refined.

appicons

This site helps you find existing app icons. For example, searching "wechat" quickly returns the WeChat icon for use in presentations.

Address: https://appicons.co/?ref=pushkeen

Open‑Source Illustration Websites

vectorCraftr

Provides hundreds of open‑source illustrations covering various domains, not limited to IT.

Online address: https://vectorcraftr.com

unDraw

A collection of illustrations for many fields that allows you to customize the color palette.

Online address: https://undraw.co/illustrations

KawaiiLogos

A repository of stylized logos, mainly for programming languages and open‑source middleware, featuring a cute, anime‑style design.

Online address: https://github.com/SAWARATSUKI/KawaiiLogos/tree/main

Icon Libraries

There are numerous icon resources; some are free, while others have unclear licensing.

Remix Icon

A continuously updated, free icon set maintained by an independent developer.

Online address: https://remixicon.com/

Font Awesome

A popular international icon library offering a wide range of styles, including monochrome and multicolor icons; most are free, though some SVG sizes require a paid license.

Online address: https://fontawesome.com/

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microservice project "mall-swarm" provides a complete Spring Cloud and Kubernetes tutorial, but it is unrelated to the design resources discussed above.