Build Lightning-Fast & User-Friendly Web Applications Using React

"Top React Development Services"

We bring deep expertise in React development, helping companies like WHOOP, Qeepsake, and Kolide build and deploy web apps and mobile experiences that users love.

Kolide by 1Password
Optimizely
Whoop
Salsify
Fitbit

Top React Developers You Can Rely On

You don’t just need developers - you need a team that works fast and delivers production-ready code in the first week.

Bug-Free Warranty

We back our work with a 12-month warranty - if we built it, we’ll fix it.

Deep React Expertise

We know React inside and out - and how to integrate it with Rails, Node, and Python.

Temporary By Design

We set you up for long-term success - so you can scale with confidence.

Test-Driven Development (TDD)

Every line of code is rigorously tested for maximum reliability.

Our Work In The Wild

Previos
Next
Ideate
Ignite
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Integrate

React + Next.js

Building an Engine for Third-Party Integrations

WHOOP was growing fast, and their engineering team faced a backlog of third-party integrations. We stepped in as an extension of their team, building a robust testing application, creating self-service documentation, and streamlining onboarding for new partners. 

By taking on these integrations, we freed up WHOOP’s engineers to focus on scaling their core product while creating a smooth experience for their partners.

Check Out The WHOOP Case Study
Ideate
Ignite
Embed
Integrate

React

Empowering Device Security with Collaboration

Kolide needed extra engineering support to expand their SaaS platform and develop mobile and desktop apps for secure device management. We embedded engineers directly into their team, helping them improve existing features and build new ones.

Together, we launched Kolide’s mobile app on Google Play and Apple App Stores, enabling secure device monitoring and keeping information protected.

Read the story of Kolide
Ideate
Ignite
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Integrate

Ruby on Rails

20x User Base Growth & Shark Tank Success

When Qeepsake approached us, they had a promising prototype but needed help building anapp to scale their vision. We built a cloud-based platform, optimized their onboarding UX, and integrated messaging and payment systems to enhance functionality.

Our work helped Qeepsake grow their user base by 20x and secure a deal on Shark Tank. Today, they’ve saved over 50 million memories for more than 700,000 families.

See Our Qeepsake Dev Process

"Look to my coming at first light on the fifth day. At dawn, look to the East" And he arrived exactly at that time.”

Gandalf Saving The Day
– As Usual

Top React Development Services

We don’t just write code – we build scalable, high-quality applications built on a test-driven development approach. 
Here’s how we do it:

Custom React Development

Full-scale React applications built for speed, flexibility, and maintainability.

React UI/UX Development

Beautiful, responsive, and user-friendly interfaces that keep users engaged.

Next.js Development for SEO & Performance

Improve load speeds and search engine visibility with server-side rendering.

React Code Audits & Performance Optimization

Identify bottlenecks, refactor inefficient code, and improve scalability.

Why Trust The Gnar for React Development?

Need a React expert on your team?

Embed a Gnar Engineer

Embedded React Engineers

Need extra hands? Our senior React developers embed into your team for faster development.

React + Back-End Expertise

Full-stack development with Node.js, Ruby on Rails, or Python for a complete end-to-end solution.

The Best React Developers for Your Big Ideas

You need a modern web app that moves as fast as your users do. We use React’s component-based architecture to make that possible.

Not sure if React is right for your project?

Let’s Ideate Together

Blazing-Fast Performance

We utilize React’s virtual DOM rendering for high-speed interactions.

Scalability Built-In

Whether you’re a startup or an enterprise, we build so you can grow effortlessly.

Reusable UI Components

Develop once, deploy everywhere - saving time and reducing costs.

SEO-Optimized with Next.js

Our expanded expertise helps boost performance and enhance search engine visibility.

Let’s solve your gnarly software 
challenges together.

Whether you're starting from scratch or upgrading your existing front-end, The Gnar has the expertise to deliver. Let’s build something great.