Custom web applications
Portals, internal tools and multi-user platforms with logins, roles and the workflows your business runs on.
- Next.js + Node.js
- Role-based access
- Admin panels
Web Development Company
Web apps and websites built to do real work
Customer portals, booking platforms, dashboards and fast marketing sites, built with Next.js, React and Node.js.
- Free consultation
- Fixed-price quote
- You own the code
A website builder is fine until the site has to do something specific: take a booking with a deposit, show a customer their account, connect to the system your team already uses. That is where custom web development pays off. We build web applications around your process instead of bending your process around a template.
Everything we ship is fast, accessible and built for search from the start, with clean URLs, proper metadata and structured data. You own the code and the hosting, and we can keep it running and improving after launch.
What we build
What we build for the web
Booking and e-commerce
Availability calendars, deposits, checkout and order management, with payment gateways built in.
- Stripe
- Calendars
- Multilingual
Dashboards and reporting
Data from your systems in one place, with charts, filters and exports your team will actually use.
- Live data
- Exports
- Access control
Marketing websites
Fast sites on a headless CMS that your team can update, built to rank and to convert.
- Headless CMS
- Core Web Vitals
- SEO built in
APIs and integrations
Connect CRMs, payment providers, ERPs and third-party APIs so data stops being copied by hand.
- REST APIs
- Webhooks
- Data sync
Rescue and modernisation
Take over an unfinished or slow web app, fix what is broken and move it to a modern stack step by step.
- Code audit
- Performance
- Migration
Ready when you are
Have a project in mind? Let's scope it together.
Tell us what you want to build. We reply within 24 hours with honest advice, a timeline and a fixed-price quote.
Get My Free Quote24-hour response · No obligation
How we work
How a web project runs
- Step 1
Discovery
We map the users, pages and integrations, and agree what launches first. You get a fixed-price quote.
- Step 2
Design
Wireframes and a high-fidelity design for the key pages, reviewed with you before we build.
- Step 3
Build
Two-week sprints on a staging site you can click through at any time.
- Step 4
Launch
Performance, security and SEO checks, redirects from any old site, then go-live.
- Step 5
Improve
Analytics, monitoring and a monthly plan for fixes and new features if you want one.
Technologies we use
- Next.js
- React
- TypeScript
- Node.js
- Express
- PostgreSQL
- MongoDB
- Tailwind CSS
- Stripe
- Cloudflare
Proof, not promises
Products we have shipped
Booking platformDadi Rent BoatBoat rental bookings with an availability calendar, secure deposits and a multilingual site.Read the case study Nonprofit platformNYYCWeb platform for a New York youth organisation's mentorship, education and community programmes.Read the case study SaaS web appTracefyHRMulti-tenant HR web app with payroll, leave, attendance, hiring and a no-code feature builder.Read the case study
Testimonials
What Our Clients Say
Discover what our clients think about our services and how we've helped them achieve their goals.
fiverr
AJ
Angelique Jones
CEO, Tech Innovations
fiverr
D
Don
CTO, DataFlow Systems
Upwork
DevEntia Tech delivered beyond expectations! The team handled our web app project with precision, clear communication, and creative solutions. Every milestone was completed on time with exceptional quality.
OB
Olivia Bennett
Startup Founder
Upwork
DevEntia Tech's UI/UX services are top-notch. They transformed our outdated website into a modern, user-friendly experience.
ER
Emily Rodriguez
E-commerce Director
Fiverr
Abdul, Zubair Khan from DevEntia Tech and their team went above and beyond to deliver our custom-built Web3 website. Their professionalism, reliability, and communication were exceptional. Highly recommended as a long-term tech partner!
D
Don
Client from Australia
Fiverr
Abdul and his team at DevEntia Tech are talented, knowledgeable, creative, and kind. Working with them was an absolute pleasure — they delivered exactly what was needed with great attention to detail.
AJ
Angelique Jones
Client from USA
Upwork
Zubair Khan from DevEntia Tech was a fantastic addition to our Android team. His technical skills are top-notch, communication was clear, and collaboration effortless. Highly recommended!
JA
James Anderson
CEO
Upwork
Working with Zubair Khan from DevEntia Tech was an absolute pleasure. His professionalism, creativity, and technical expertise made our website both beautiful and functional.
PR
Pinny Rozen
SaaS Founder
Upwork
Their expertise in React and Next.js is outstanding. DevEntia Tech delivered a lightning-fast, SEO-optimized website.
WD
William Davis
Tech Lead
Upwork
Exceptional Experience – Highly Skilled & Professional Developer. Zubair Khan from DevEntia Tech demonstrated deep knowledge in Flutter, React.js, and Node.js. Clear communication, timely delivery, and smart problem-solving throughout.
RO
Resul OEzer
CEO
Upwork
Zubair Khan from DevEntia Tech delivered exceptional work on the design and development of my app. His communication was excellent and he consistently met deadlines.
HS
Honey Singh
SaaS Founder
Upwork
Zubair Khan from DevEntia Tech has been an incredible asset as a senior developer. He works fast, pays close attention to detail, and genuinely cares about project success.
AM
Angel Mojarro
SaaS Founder
Upwork
Highly talented developer. Zubair Khan from DevEntia Tech understood our requirements perfectly, communicated progress regularly, and delivered high-quality code. Will hire again!
R
Richmond
CEO
Upwork
Zubair Khan from DevEntia Tech and his team have been a pleasure to work with. Excellent communication and strong delivery — highly recommended!
NS
Nabeel Sharif
CEO
Fiverr
Abdul was awesome and he and his team from DevEntia Tech worked until the delivery met our expectations. He is polite, quick to solve problems, and ensured top-quality results.
S
Shabbir
Client from Singapore
Fiverr
The work by Abdul and Zubair Khan from DevEntia Tech demonstrated a high level of professionalism — completely error-free and beyond expectations. Communication was proactive and clear throughout. Outstanding job!
AM
Angel Majerro
Client from Spain
Pricing
What it typically costs
Marketing site
$8k–$30k
4–8 weeks
Custom web app
$40k–$120k
10–18 weeks
Enterprise platform
$150k–$500k+
5–10 months
Typical ranges for projects we quote. Your price depends on scope, and after a short scoping call you get a fixed-price quote that does not change during the build.
Where we work
Web Development for clients in
FAQs
Web Development: common questions
Still unsure? Book a free 30-minute call and get a straight answer for your project.
Talk to an EngineerHow much does a custom web app cost?
A marketing website typically costs $8k to $30k and takes 4 to 8 weeks. A custom web application usually falls between $40k and $120k over 10 to 18 weeks, depending on users, integrations and admin needs. You get a fixed-price quote after scoping.
Should I use a website builder or custom development?
If you need a brochure site you can edit yourself, a builder is often enough. Custom development makes sense when the site has to run a process, such as bookings, accounts, portals or integrations, or when speed and SEO matter for revenue.
Which technologies do you use?
Mostly Next.js and React on the front end and Node.js on the back end, with PostgreSQL or MongoDB. We choose based on your project and your team's ability to maintain it.
Will my site be good for SEO?
Yes. We build with clean URLs, server-rendered pages, metadata, structured data, fast load times and a sitemap, and we set up Search Console at launch.
Can you work with our existing system?
Yes. We regularly connect web apps to existing CRMs, ERPs, payment providers and internal databases through their APIs.
Who owns the code and hosting?
You do. Code lives in your repository and the app runs on hosting in your name.
Guides from our blog
Let's build it
Start your web development project
Tell us what you need. We reply within 24 hours with honest advice, a clear timeline and a fixed-price quote.
Start Your ProjectFree consultation · You own the code
What happens next?
- Our expert will follow up after reviewing your needs.
- If required, we’ll sign an NDA to ensure privacy.
- Our Pre-Sales Manager will send you a proposal.
- Then, we get started on your project.
Let's Connect
Send a Message[email protected]
Call Us Directly+44 7863 374791 (London)+92 343 4417696 (Islamabad)
Ready to Build & Scale?
Schedule a consultation or get a quote