Web applications that hold up in production.
We design and build custom web applications, portals and platforms — from the interface to the API — for teams that need software that stays reliable after launch.
- Team
- 50+ IT professionals
- Delivery
- Design, build, release, support
- Engagement
- Project or dedicated team
What this covers
Concrete work we take on under web development — not a catalogue of buzzwords.
- Customer portals, admin tools and internal workflows
- Multi-page product sites with authenticated areas
- Progressive web apps where offline or installability matters
- Rebuilds of legacy PHP or jQuery systems into modern stacks
Problems we take on
If one of these sounds familiar, we have likely shipped something close — and we will say so if we have not.
- Off-the-shelf tools force awkward workarounds for your real process.
- An old codebase is too fragile to extend safely.
- You need a web product, not a marketing site with a form.
Technologies
Stacks we use when they fit the product and your team — not a mandatory toolkit for every engagement.
- React
- Next.js
- Vue
- Angular
- Node.js
- Python
- Laravel
- PostgreSQL
How we work
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Scope before code
We write what is being built, what is excluded, integrations, dates and cost basis before the build starts. Changes get quoted before they get coded.
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Talk to the people doing the work
You meet named engineers and designers. There is no account manager translating technical questions in both directions.
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Working software every two weeks
Increments land on staging you can open and use. Progress you can click on beats progress in a status report.
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You own everything
Repository, cloud account, domains and credentials stay yours. We work in your accounts wherever possible.
FAQ
Do you build marketing websites?
We build product and platform web apps. Simple brochure sites are usually better handled by a specialist web studio — we will say so if that is the better fit.
Which stack do you use?
We pick the stack that fits the product and your team. React/Next.js and Node or Python are common; Vue, Angular and Laravel are available when they are the right choice.
Can you rebuild a legacy web app?
Yes. We often migrate fragile PHP, jQuery or monolith systems into modern stacks in stages so you keep shipping while the foundation improves.
Do you handle authentication and roles?
Yes — SSO, role-based access and admin tools are common parts of the portals and platforms we ship.
How do you approach hosting and deployment?
We set up CI/CD and environments in your cloud account. You own the infrastructure; we make releases routine and observable.
Related
Services that often sit beside web development on the same roadmap.
Why Three Index
Founded in 2020 in Ahmedabad, Gujarat. Fifty-plus IT professionals. More than five hundred projects shipped across product and enterprise work.
We are large enough to staff serious products and small enough that the people who wrote a module can still explain it. See how we operate, browse case studies, or join the team.
Tell us what you are trying to build.
Send a short description of the project. You will get a reply from someone technical — with questions worth answering, not a brochure.