Web Application Development
A web application development company that ships products.
SaaS platforms, web apps, internal tools, and high-converting sites — auth, billing, dashboards, and deploys included. Built in California for US clients and teams worldwide.
From landing page to full SaaS
Whether you need a marketing site that ranks or a logged-in product customers pay for, we build it end to end — frontend, backend, database, payments, and deployment — and we run our own web products in production, so the same rigor goes into yours.
No half-finished prototypes. Auth, subscription billing, multi-tenant data, admin tools, dashboards, and monitoring are built in from the start. You see working software every week, and you own the code at the end.
- Authentication & user roles
- Subscription billing (Stripe / PayPal)
- Multi-tenant data model
- Admin portal & moderation
- Dashboards & analytics
- Transactional email (SendGrid)
- File storage (AWS S3)
- CI/CD + production deploy
What we can do for you
Everything your web project needs — in one place
No jargon. Here are the concrete things we'll handle so you don't have to find separate people for design, build, payments, and hosting.
What we build
Web products of every shape
One team across frontend, backend, data, and infrastructure — no handoffs.
SaaS platforms
Full products with auth, subscription billing, multi-tenancy, and an admin portal — ready to charge.
Internal tools & dashboards
Ops tools, data dashboards, and back-office apps that replace spreadsheets and manual work.
Customer portals
Secure logged-in areas for your customers — accounts, data, documents, and self-service.
Marketing sites & landing pages
Fast, SEO/GEO-ready sites that rank and convert (yes — this site is one of ours).
Marketplaces & directories
Two-sided platforms with listings, search, payments, and reviews.
APIs & integrations
REST APIs, webhooks, and connections to Stripe, PayPal, SendGrid, Twilio, AWS, and more.
Which do you need?
Website vs. web application
Marketing site / landing page
Your public storefront — explain the offer, rank in search, and capture leads. Days to a couple of weeks. Start here if you mainly need to be found and convert.
SaaS / web application
A logged-in product with accounts, data, and billing that customers use and pay for. Weeks to a few months. This is where auth, dashboards, and multi-tenancy come in.
Curious about cost? Read how much it costs to build a SaaS in 2026 →
How we build
Production-grade, shipped in slices
Scope tight, ship in slices
We cut the project into shippable milestones so you see working software every week — not a big-bang reveal at the end.
Production-grade by default
Auth, billing, monitoring, and error handling are built in from the start, not bolted on before launch.
Multi-tenant & secure
Workspace isolation, role-based access, and authorization in the service layer — the patterns that keep SaaS data safe.
Own it after launch
You get the code, docs, and a clean deploy. We can keep maintaining and growing it, or hand it over fully.
How a project runs
Simple, transparent, no agency theatre
You always know what's happening and what it costs — and you see working software every week.
- 1
Free scoping call
Tell us the goal in plain words. We work out the smallest version that delivers real value.
- 2
Plan, timeline & fixed price
Within days you get a one-page plan and a fixed quote — no hourly surprises.
- 3
Design & weekly builds
We design the screens, then build in slices you can see and react to every week.
- 4
Launch & look after it
We deploy it, hand over the code, and can host and keep growing it on a simple plan.
Web stack
The tools behind our shipped products
Frontend
Backend
Data
Payments & infra
Proof
Web products we built & run
Live web apps with auth, billing, and dashboards — built and operated by us.
Developer Community Platform
A technical blogging and learning platform — publish articles with rich code highlighting, take courses with certificates, solve coding problems, and compete in live team contests.
Newsletter + Dev Platform
A daily AI & tech newsletter plus a developer-tools directory, job board, and guides — the news, launches, and dev updates that matter, explained in 5 minutes every morning.
From the blog
Planning a web product?
What it costs
Fixed prices, no enterprise minimums
Timeline
Landing pages in days; a focused SaaS first version in a few weeks; larger platforms grow in stages.
Pricing
A fixed quote after a free scoping call — no hourly surprises. No enterprise minimums: we take small projects and MVPs.
After launch
Optional care plans from $99/mo keep it hosted, secure, and maintained — no technical hire needed.
Get a fixed price for your project — usually within one business day.
FAQ
Web app development, answered
What does a web application development company build?
Kodetra builds SaaS platforms, web apps, internal tools, customer portals, marketplaces, and marketing sites — end to end, including auth, billing, dashboards, APIs, and deployment.
Do I need a website or a web app?
A website/landing page is your public storefront to get found and convert; a web app is a logged-in product customers use and pay for. Many clients need both — we build either, and they share one design system and stack.
What's included in a SaaS build?
Typically authentication and roles, subscription billing (Stripe/PayPal), a multi-tenant data model, an admin portal, dashboards and analytics, transactional email, file storage, and CI/CD with a production deploy.
What stack do you use?
Next.js, Angular, and React on the frontend; NestJS and Node.js on the backend; MongoDB and Redis for data; Stripe/PayPal, AWS, and Docker for payments and infra. We pick per project for reliability and cost.
Have you built real web products?
Yes — Linq List, CodeBrainery, and ContentBuffer are live web applications we built and operate, with auth, billing, and dashboards in production.
How do I start?
Email info@kodetra.com or use the contact form. We reply within one business day with a plan, timeline, and fixed price. US clients can meet in person; we work with teams worldwide.
Ready to build your web product?
Tell us what you want to build — we'll reply with a plan, a timeline, and a fixed price.