Cost & timeline

What does it cost — and how long — to convert Access or Excel to a web app?

Last updated July 14, 2026

20+Years2,751+Projects delivered 2,435+Clients 4.6·502 reviews

Before and after: a fragile inventory spreadsheet full of #REF! errors and locked by another user, transformed into a clean, multi-user YittBox web app dashboard.

20+ years

Building business apps for small and mid-size companies.

Clear, up-front quotes

No surprise invoices. We scope, then quote the work.

Weekly progress updates

Progress updates every week. No black boxes.

Built on a modern React/Next.js + Node + SQL Server stack on AWS

How much does it cost to convert an Access database or Excel spreadsheet to a web app?

Most conversions start around $2,500 for a single spreadsheet or form and run into the low five figures for a multi-user Access system. A simple single-purpose spreadsheet is a small, quick project; a multi-module Access system with several users and integrations is a larger one. Every conversion is scoped and priced individually — YittBox reviews your specific system for free and gives you a fixed price up front, no hourly surprises.

How long does it take?

Most conversions take a few weeks to a few months — a single spreadsheet or form on the shorter end, a multi-user system with integrations on the longer end. Every project is RalphAI-accelerated, and you get the timeline in writing before we begin.

Typical project ranges

Every conversion is scoped and fixed-price quoted individually — but to give you a starting point, here’s where most projects land based on real work we’ve delivered.

Single spreadsheet or form

Starting around $2,500

One Excel workbook or a single Access form/report moved to a secure, multi-user web app for a small team.

Most common

Multi-form Access app

Typically $5,000–$15,000

A working Access database with several forms, reports and roles — cleaned up, made multi-user, and moved to the cloud.

Multi-module system

$20,000+

A larger system: many users, multiple modules, integrations (accounting, email, APIs) and data migration/cleanup.

Not sure where you fit? Send us your file — the free review comes back with a fixed price, so you never guess.

HOW WE WORK

Our streamlined 6-step process

1
Free System Review
Async-first. Send us your files and we’ll analyze them — no charge. We tell you what we see and what it would take, then get back to you.
2
Architecture & quote
We write up the architecture, data model, and integrations — then quote the work up front. No surprises.
3
Iterative build with weekly progress updates
You get a progress update every week, so you can course-correct early and never wait months to see where things stand.
4
Data migration + parallel run
We migrate your data and run the old system alongside the new one until you’re confident.
5
UAT
Your team runs through the new app, tests the workflows that matter, and signs off before launch.
6
Go-live & ongoing support
We flip the switch, monitor the rollout, and stay on call. Support is ongoing — you’re not on your own day one.

What drives the scope

number of tables/forms/reports
logic complexity
users & roles
integrations
data volume & cleanup

What you get

multi-user access on any device
no more file corruption or version conflicts
permissions + audit trail
configurable backups
the same workflows your team already knows

How pricing works: free review → fixed up-front quote → no hourly surprises.

Get a Free System Review →·Book a Call →

Access/Excel vs a web app

How a web app compares

Microsoft Access or Excel file versus a custom web app
Capability	Access / Excel file	Custom web app
Access from anywhere	Tied to one PC / shared drive	Any browser, any device
Multiple users at once	File locks, lost edits	Real-time, no conflicts
Mobile / tablet	No	Built-in, responsive
Data integrity	Corrupts, version sprawl	One source of truth, configurable backups
Security	One shared file/password	Role-based logins + audit trail
Reporting & integrations	Manual, brittle	Live dashboards + API integrations
Scales as you grow	Hits size/row limits	Grows with your data + users

What It Really Costs to Modernize Access/Excel

PDF

An honest breakdown of what Access/Excel modernization actually costs — the real price drivers and how to budget for your project.

In their words

What clients say

“YittBox has a talented and creative writer on the team. More projects in the pipeline with them.”

— Gil Cartier

“Great copywriter, thanks to the YittBox team!”

— Affluent.co

“Great job, very friendly team, hard workers”

— Tyree Dieudonne

What it costs to convert Access or Excel to a web app

There’s no single sticker price for converting a Microsoft Access database or an Excel spreadsheet into a web app, because a small, well-organized system and a sprawling one that’s grown for a decade are genuinely different jobs. What we can promise is a clear, up-front, no-call estimate with a defined scope and timeline — and a cost that typically lands well below buying and adapting off-the-shelf software for the same capability, with none of the per-seat licensing that keeps climbing as your team grows.

What drives the price

The main factors are how much logic the current system carries (the number of tables, forms, reports, and rules), how many users need access and at what permission levels, whether anything has to connect to other tools you already use, and how clean the existing data is. A spreadsheet with a few well-structured tabs converts quickly; an Access application with dozens of interlinked queries and years of ad-hoc changes takes more discovery up front.

How we quote it

Send us the file and we analyze it before quoting — so the estimate reflects your actual system, not a guess. You get a fixed scope, a timeline, and a price in writing, with no call required and no obligation. If the smart move is to phase the work — convert the highest-pain part first and grow from there — we’ll lay that out too.