Custom web development services

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Transform your vision into a powerful web solution. We create scalable software with clear, maintainable code that is suited to your unique set of needs. The result is a strong, safe platform built for practical use and future growth.

Unlock new potential for your business with a custom web solution

Build future-ready web apps with the right technology partner. As a trusted web design and development services provider, COAX can help you unleash the full potential of modern web technologies to build customized, enterprise-grade, result-driven web solutions for your business. Our professional web design team is here to bring your exciting vision to life.

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Our expertise in web technologies

AI

Anthropic

OpenAI

ElevenLabs

pytorch

langchain

Front-End

React.js

TypeScript

Redux Toolkit

Vite

tanstack/query

Webflow

Back-end

Node.js

Ruby on Rails

Python

Django

Express.js

Flask

FAST API

Asyncio

Next.js

Nest.js

Meteor.js

Cloud & Databases

AWS

Google Cloud

Oracle

Terraform

Docker

Digital Ocean

PosgreSQL

MongoDB

Operational Data Stack

ElasticSearch

Redis

Rabbit MQ

Airflow

Algolia

Valkey

Learn more about our comprehensive technology stack

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Our web development services

  • Custom web development

    Our professional web development team can build high-performing, scalable custom web applications that match your business requirements and significantly increase customer engagement.

  • Web support and maintenance

    Our cooperation with you won't end once your web development project goes live. Web development services by COAX include maintenance and support to make sure your web solution is always up and running.

  • eCommerce development

    Deliver personalized shopping experiences to your customers by leveraging our eCommerce web development services for B2B, B2C, and C2C.

  • Third-party integration

    We'll help you enhance the capability of your web apps through integration with various third-party plugins serving BI, analytics, social media, and more.

  • Enterprise web development

    Increase the operational efficiency of your enterprise by creating interactive, fluid, and easy-to-use custom enterprise-grade web applications.

  • Legacy app upgrade

    We help you modernize and upgrade your legacy apps without disturbing your business processes using the right middleware components.

Сustom web development solutions

Need a web application development company that actually understands your systems? At COAX, we design and build web-based software that automates your unique workflows, eliminates manual processes, reduces errors, and scales with your operations.

We build secure, role-based gateways that centralize your data, tools, and user interactions in one access-controlled environment. Our portals replace fragmented spreadsheets and emails with live data dashboards, automated approvals, and audit-ready activity logs, all behind strict permission layers.

Specialized landing page development ensures your first digital touchpoint eliminates friction, capturing attention, qualifying intent, and driving measurable actions. We create high-conversion pages that drive visitors into leads through structured layouts, CTAs, and optimized code.

The PWAs we build deliver native-like UX across all devices while cutting app maintenance costs, platform restrictions, and update delays. What you get is simple: app-store performance without the store. 

Your team shouldn’t wrestle with WordPress plugins or hacking Shopify templates every time they need to add or change content. We create custom content management systems that give your team exactly the editing tools they need. With lean, purpose-built systems that handle your specific content types and publishing processes, your processes speed up dramatically.

Web development cycle

Web development is a never-ending journey that can be improved every day. Our web development life cycle is anchored in understanding the client's requirements, in-depth market research, and target audience analysis and involves planning, web design and development, testing, and maintenance.

At the discovery stage, we research the existing market and your competitors to help our web developers come up with a web solution that will deliver genuine value.

Any application or website development begins with planning, which includes research and data collection.

Professional website developers at COAX Software heavily focus on the specifications stage, allowing us to deliver the project on time and within a set budget.

Our creative designers produce multiple versions of logos, mockups, wireframes, and other elements until customers' expectations are met.

Thanks to website development planning, the programming stage is about optimizing the speed and sequence of task flow by using modern web development IDEs, Git version control, cloud server integration, etc.

Our QA engineers perform testing upon delivery of each milestone. We provide a stable version to our clients for personal acceptance testing.

This is the final stage of our app and website development process. You get a week to test everything upon delivery as a guarantee period.

Through monthly payments, our company establishes a dedicated team to maintain your project on a continuing basis.

Why you should choose COAX as your custom website development company

  • Striving for perfection

    Our development team is accurate and precise in coding, and our QA engineers have zero bug tolerance. We make sure that the final product matches the documentation of the requirements, and do our best to deliver high-grade web design services that can secure user experience.

  • Post-release support

    Our development team will be there even after the project is completed to ensure your web solution works properly.


  • Enhanced flexibility

    We don't mind adjusting our working hours to overlap with your time zone.


  • Legal protection

    We sign an NDA to ensure that there is no risk of unauthorized use of any project data to secure our customer information's confidentiality.

  • Intellectual property rights

    All the rights to the software developed by our software engineers are 100% owned by the client.



  • Stack of proven technologies

    To guarantee long-term stability and ease of maintenance, we construct solutions utilizing well-established, industry-standard technologies. This method streamlines upcoming handover procedures while reducing the risks associated with untested frameworks.

Client feedback


I was most impressed by the quality of the end product.

While my ideas formed the basis for the work, they delivered a far more superior product than I imagined with greater flexibility and viability of features. They exceeded expectations so many times it got to the point I couldn't wait to see what they came up with next.

Dan Brooks

President, Krytter

COAX have delivered immense value to our business as our valued strategic development partner.

I implicitly trust the whole COAX team to do the right thing by location:live, and to have blunt and honest conversations with me when we are in the thick of delivery. COAX are the engine room and compass behind our market-leading tech.

Neil Winkworth

CTPO, Location Live

For almost 10 years now, I’ve enjoyed working with COAX Software on various projects.

Their team of highly talented, cross-functional software engineers and architects helps us meet development timelines quickly and reliably.

Joseph Heenan

CEO, Proteineer

From legal and financial support to software development, COAX Software repeatedly went above and beyond.

With their deep expertise and responsive communication, we would recommend this team to anyone needing complex custom development.

Mykola Bronitskyy

Co-founder, GrandBus

Our case studies

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Frequently asked questions and answers

Custom web application development is the process of building tailored software solutions designed specifically for a business's unique needs, workflows, and goals, delivered through a web browser. Unlike off-the-shelf software, it's made to fit exact requirements.

This entirely depends on what you need. Developing a one-thousand-page eCommerce website will take much longer than creating a landing page.

Yes, apart from creating a new website from scratch, our web design services include modifying your existing web design to ensure it is optimized in terms of usability and is able to drive the number of conversions you aim at.

Yes, we provide custom website development services to clients from all over the globe.

It depends on the web solution you need to design and build. However, with COAX, you can rest assured that we strive to deliver the best possible value for reasonable pricing.

Developers at COAX have broad experience building eCommerce websites, business websites, media websites, portfolio websites, community forums, video hostings, and more.

Yes, we work hard to ensure that each user-friendly website we design is optimized to look great on any device.

Our expertise

Our team has excellent coding skills and rich experience in creating apps for all types of businesses mentioned below. Our rich base of ready-made solutions in these areas helps us to stand out from other web app development companies, and we can make you outshine your competitors, too.

Want to know more?
Check our blog

Company news

COAX Software named among the Top Enterprise Development Companies of 2025 by Techreviewer.co

November 7, 2025

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Company news

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January 18, 2024

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Development

Minimum Viable Product development for startups – the ultimate guide

April 28, 2023

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Travel

Top 10 travel agency software

April 7, 2023

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Development

Outsourcing software development to Eastern Europe: how to choose the right IT company?

March 28, 2023

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Design

Webflow vs Wordpress: what sets it apart?

March 3, 2023

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eCommerce

Marketplace eCommerce сhecklist: what every merchant must know

November 7, 2022

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How can I help you?

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What I’ll do next?

  • 1

    Contact you within 24 hours

  • 2

    Clarify your expectations, business objectives, and project requirements

  • 3

    Develop and accept a proposal

  • 4

    After that, we can start our partnership

Khrystyna Chebanenko

Client engagement manager