Convert your Microsoft Access database to a secure, multi-user web application.
Same tables, forms, and logic your team already relies on — migrated off the single-user .accdb file and onto a real web application you can reach from any browser, on any device.
AI-accelerated delivery — our RalphAI assistant speeds every build.
20+ years
Building business apps for small and mid-size companies.
Clear, up-front quotes
No surprise invoices. We scope, then quote the work.
Progress updates every week. No black boxes.
Built on a modern React/Next.js + Node + SQL Server stack on AWS
Is this you?
Corruption & endless repairs
The database bloats, throws "unrecognized format" errors, and you're compacting and repairing just to keep it open in the morning.
Locked to one PC or a network share
It only really works from the office on the shared drive — remote staff are stuck, or limping along on a flaky VPN.
Multi-user pain
More than a handful of users and you get record locks, slowdowns, and corruption the moment someone's connection drops.
Hitting the 2 GB wall
The .accdb is creeping toward Access's 2 GB limit and getting slower to open as your data grows.
One person understands it
The database was built years ago by someone who has since left, and now everyone's afraid to touch it.
No mobile or web access
Sales is in the field and the warehouse is on a tablet — and Access doesn't run in a browser.
Imagine instead…
Real-time multi-user
Dozens of people in the same data at once — no record locks, no corruption, no lost work.
One source of truth
A proper cloud database, not a shared file — the same numbers for everyone, every time, backed up automatically.
Anywhere access
The same secure login from the office, home, a tablet, or a customer site.
Mobile-responsive
Built for phone and tablet from the start — no Access runtime, no install.
Audit trail
Every change is logged: who, what, and when. Compliance ready, unlike a shared .accdb.
Integrations
QuickBooks, Salesforce, Stripe, your warehouse system — talk to the tools you already use.
Our streamlined 6-step process
- 1
Free System Review
Async-first. Send us your Access database (.accdb or .mdb) and we'll analyze it — 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 Access data and run the old database alongside the new app 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.
You’re in good hands
20+ years modernizing Access databases
We've seen every variant of "the Access database that grew up." Nothing surprises us.
Clear, up-front quotes
We scope, then quote the work up front — no "a few more weeks."
Weekly progress updates
You get a progress update every week. No black boxes, no surprises at launch.
References on request
Real clients who've moved off Microsoft Access. Ask us, we'll connect you.
How a web app compares
| Capability | Microsoft Access | Custom web app |
|---|---|---|
| Access from anywhere | Tied to the office PC / network share | Any browser, any device |
| Multiple users at once | Locks, corruption on dropped connections | Real-time, no conflicts |
| Mobile / tablet | No — desktop only | Built-in, responsive |
| Data integrity | Corruption, compact & repair | One source of truth, backed up |
| Security | One shared file / password | Role-based logins + audit trail |
| Reporting & integrations | Manual exports | Live dashboards + API integrations |
| Scales as you grow | Hits the 2 GB limit | Grows with your data + users |
The cost of staying on Access
Answer four quick questions to see what the manual process costs your team each year — and roughly when a web app pays for itself.
Their rough hourly cost
How often bad data / rework bites you
How it’s calculated: hours × people × 52 weeks × hourly cost, plus a rework factor.
You’re spending roughly
$58,968/year
on this manual process.
A web app in the typical range often pays for itself in about 4 months.
Estimate — real numbers depend on your setup.
Most software projects land in the low-to-mid five figures and typically pay for themselves within about four months. You get a fixed quote you approve up front (no surprises), billed by milestone — or monthly for ongoing work.
What clients say
“The YittBox team has an incredible writer. I plan on using them for all my future scripts. They communicate well, and write a quality script on time. I would recommend them to anyone.”
— Andrew Schmidt
“Very responsive to changes and understood what I was trying to do from the start. Had some good suggestions for changes that I had not thought of that made the program work better.”
— Jason Taylor
“I'm thoroughly impressed with the YittBox team's development of my Portfolio. The work quality was excellent, and the experience of collaborating with them was overwhelmingly positive. Their communication was exemplary, ensuring we were always on the same page. One of the team's standout qualities was their adherence to deadlines - they consistently delivered on time, which kept our project running smoothly. Their technical proficiency in Portfolio development was evident throughout, demonstrating a solid skill set that met our project needs. I particularly appreciated the team's candor when we discussed solutions to my initial missteps. They quickly guided me towards the best outcome for the Portfolio, showcasing their ability to provide effective direction and resolution. I'd like to emphasize that this was my first time creating a Portfolio, working in Canva, and using Upwork. The only reason this process went so perfectly for me is that I had the opportunity to connect with the YittBox team. This has been an incredibly positive experience, almost unbelievably so. Given the success of this collaboration, I'm eager to work with YittBox again. Their blend of technical skills, reliability, and proactive problem-solving makes them an excellent choice for future projects.”
— Arnold Thornton
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Read more →Explore the full Access library
Microsoft Access built your business — until it started holding it back: locked to one PC, no safe multi-user access, and one corruption away from downtime. YittBox turns your existing Access database into a secure, multi-user web app you reach from any browser, without losing your data or your workflows. Below is our complete Access library — from the fundamentals to migration, performance, security, and the real cost and timeline of going web.
Companies we've worked with
UPA Diesel
Nikz Nacks
Rack N' Action
1128 Capital
VALLEY CAR GROUP
GUIDELINE TEMPLATES
ADVANCED CRM SOLUTIONS
WAVERITAS
BATES CUSTOM STONE
SOUTHERN MISFITS OFF-ROADING
TOP TOYS THIS YEAR
PANN TV
Media Choice
M&A AssociatesOur promise to you
Fixed up-front quote
Approve the price before any work starts — no surprise bills.
You own everything
You own 100% of your code and data. No lock-in.
We work until it's right
We keep at it until it does what we agreed on.
Free review, no commitment
Get a real answer with no call and no obligation.
Worried about handing over your data? See how we keep it safe →
Led by Joe & Holly, Managing Partners — meet the team →
More on modernizing Microsoft Access
Convert Access or Excel to a web app
Have both an Access database and spreadsheets to modernize? See the combined approach.
Access database repair & recovery
Corrupt or won't open? Get it stable first, then plan the move to a web app.
Weighing Access alternatives first?
See how Power Apps, Airtable, Caspio, Knack, and Quickbase compare before you commit to a custom web app.
Frequently asked
How do I convert a Microsoft Access database to a web application?
You move the same tables, forms, and logic into a web app backed by a real cloud database: we review the database, rebuild the forms and business rules as a multi-user app, migrate your data, and you validate before go-live.
What does it cost?
We provide a quote after we review your database. Every project is scoped to your data, users, and integrations — most land in the low-to-mid five figures.
How long does it take?
Most projects ship in 6–12 weeks from scoping. The exact timeline is in your quote — no "a few more weeks."
Will we lose data?
No. We migrate your Access data into the new system and run the old database in parallel until you've verified everything against the new one. Nothing flips until you sign off in UAT.
Can we keep using Access during the transition?
Yes. During the parallel-run phase your team keeps working in Access exactly like today. We only ask you to switch over after UAT.
Can you migrate a split Access database (front-end / back-end)?
Yes — that's a common starting point. We map the linked tables and back-end data model, then rebuild the front-end forms and reports as a web app on a proper cloud database.
Do you sign NDAs?
Yes. A mutual NDA is standard before we look at your database. Send us yours or we'll send you ours.
What about my existing Access reports and forms?
They come over. We rebuild your forms and reports in the web app so they render in a browser and export to PDF/Excel on demand. The layouts and numbers stay familiar.
My database has VBA / macros — can those come over?
Yes. We review the VBA and macro logic during the free system review and rebuild that same logic as proper application code — no more fragile, hard-to-maintain macros.
Get a free system review
Three quick steps. No call required — send what you have and we'll analyze it and reply within one business day.
- NDA on request
- Your database is never shared
- Reply within one business day
- No obligation