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Flat Icons API

Fastest API integration, lowest cost on the market – by far.

★★★★★ 5.0/5
FactScore™ 15.1
VS

Keep Design System

Create beautiful and consistence user interface with ease

★★★★★ 5.0/5
FactScore™ 71.6

Updated February 2026

Flat Icons API Keep Design System
Rating 5.0★ 5.0★
Reviews 1 26
Pros 0 18
FactScore™ 15.1 71.6

FactScore™ Comparison

FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.

15.1
Flat Icons API FactScore™
👑
71.6
Keep Design System FactScore™
★ Keep Design System wins on FactScore™

Pros & Cons

Only in Flat Icons API — Pros

No unique pros listed

Both tools — Pros

—

Only in Keep Design System — Pros

Easy to use React library Developer focused Customizable components Reusable components Free version Seamless integration Excellent documentation Community support Design consistency Open source Tailwind CSS compatibility Dark mode Figma integration Figma Variables Fast performance Modular structure Unique designs

Only in Flat Icons API — Cons

—

Both tools — Cons

—

Only in Keep Design System — Cons

Limited documentation Limited community support Limited component variety

Details

Flat Icons API Keep Design System
Categories Design resources, Icon sets Interface design tools, Design resources, UI frameworks
Platforms Web Web
Became Popular March 28, 2024 July 15, 2023
Website flat-icons.com keepdesign.io

Who Should Pick Which?

Choose Flat Icons API if...

  • No unique pros listed

Choose Keep Design System if...

  • Easy to use
  • React library
  • Developer focused

With a FactScore™ of 15.1 vs 71.6, Keep Design System leads in community reception. Flat Icons API uniquely offers No unique pros listed, while Keep Design System stands out for Easy to use and React library.

3

What Users Say

Flat Icons API

R
Raghavendra Apr 1, 2024
★★★★★

Flat Icons API is a game-changer for developers and designers alike. With access to over 52,000 premium assets, integrating sleek icons into your app or project has never been easier. The setup is ...

Keep Design System

A
Abdur Jul 16, 2023
★★★★★

Very nice design and initiative by the team. Wish them good luck!

H
Hasibul Mar 27, 2024
★★★★★

As a developer, I've found Keep Design System to be an invaluable resource in my projects. Its seamless integration with Figma and React makes creating beautiful and consistent user interfaces a br...

M
Minul Mar 15, 2024
★★★★★

I'll admit, I get a little tired of reinventing the wheel when it comes to building UIs in React. Don't get me wrong, I love the flexibility, but sometimes you just want a head start, you know? Tha...

Frequently Asked Questions

Which is better, Flat Icons API or Keep Design System?

Based on FactScore™, Keep Design System leads with a score of 71.6 vs 15.1. Keep Design System has a higher rating of 5.0★ compared to 5.0★.

What are the pros of Flat Icons API compared to Keep Design System?

Flat Icons API uniquely offers: No unique pros listed.

What are the pros of Keep Design System compared to Flat Icons API?

Keep Design System uniquely offers: Easy to use, React library, Developer focused, Customizable components, Reusable components.

Is Flat Icons API better rated than Keep Design System?

Flat Icons API is rated 5.0★ from 1 reviews. Keep Design System is rated 5.0★ from 26 reviews.

What is the FactScore™ of Flat Icons API and Keep Design System?

FactScore™ weighs rating and review volume together. Flat Icons API scores 15.1 and Keep Design System scores 71.6.

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