These 5 icon libraries are 100% free and come in various styles like lined, duotone, thin, and more. You will also find them in various file formats like PNG, SVG, and even supports various code libraries. These are perfect for both designers and developers.

1. Phosphor Icons - 9,000+ Icons

Phosphor icons is a collection of 9,072 icons ranging from basic home icons, to brand icons and app icons. These are available in 6 beautiful style - thin, light, regular, bold, fill, and duotone. On their website, you can quickly change icon colors and size in real time before you download them. You can download individual icons and copy their code for different code frameworks like Flutter, Vue, Web, and more. They also have plugins for your favorite UI design tools like Figma and Sketch.

You can check out the entire library here - https://phosphoricons.com

2. Remix Icons

This icon library is a stunning set of 2,892 icons all designed in a unique way. They have icons for every need and the website allows you to save icons in different folders - pretty neat! The only downside of this library if the lack of various styles or versions of the icons. The same company also has other icon libraries including a popular library called Streamline.

Check out Remix icons - https://remixicon.com

3. The Noun Project

The Noun Project is a legendary icon library which has also expanded into new areas like stock photos. You will find hundreds of different new styles and types of icons which are carefully categorised into different icon packs/stacks. In total, they have 7 million+ icons. However, not all these icons are free. Some require you to provide attribution in your projects, while some need to be purchased for commercial use.

The Noun Project is some of the largest icons sets on the internet. Check them out here - https://thenounproject.com

4. Hugeicons

Hugeicons is a free library of 36,000+ icons in various unique styles like lined, two tone, rounded, and more. They have a cool system for categorising icons into different categories like gym, games, food, etc.

The lined icons are completely free to download and use, however you will have to pay a small fee to unlock the entire library - https://hugeicons.com

5. Tabler Icons

Tabler icons is a large library of beautiful soft icons for web design and UI design. You can even get the source code on Github for this.

Check out these stunning free icons - https://tabler.io/icons

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