Convert MS Access to a Web App | Migration
To migrate a standalone Microsoft Access database application to the web, you rebuild the Access Forms, Reports, Macros and VBA business logic as a modern browser-based application and move the Jet/ACE (.mdb/.accdb) data into a proper server database. We do not machine-translate the .accdb file into a fragile wrapper. We audit what your Access app actually does, re-create every form, validation rule and report as clean web screens, and migrate your records into a server database that supports many concurrent users, real backups and role-based access. Delivery is remote with English support.
Why a grown-up Access app is now a liability
A serious Access application that started as a quick in-house tool and became business-critical eventually hits the limits of the Jet/ACE engine. The symptoms are familiar to anyone running a split front-end/back-end on a shared network drive:
- Record-locking conflicts: two people editing at once trigger lock errors, overwritten edits and “write conflict” messages.
- Frequent corruption: an .accdb back-end on a network share corrupts when a connection drops mid-write, forcing compact-and-repair and data loss.
- The ~2 GB ceiling: a single .accdb file cannot grow past roughly 2 GB, so growing businesses run out of room.
- VBA maintainability: years of undocumented VBA behind forms and macros becomes risky to change, and the original author is often long gone.
- No real security: file-level access offers no proper roles, no audit trail and no safe way to expose data outside the office.
- Windows-only: it runs only on PCs with Access installed, so there is no phone, tablet or remote access.
If you are weighing whether to rebuild at all, our guide on web vs installed software explains why a browser-based app removes these constraints for a data-heavy tool.
Our migration approach: rebuild the logic, migrate the data
The data inside your Access tables is usually sound and worth keeping. The container and the UI are the problem. So we separate the two:
- Rebuild business logic: every form, calculation, validation rule and VBA routine is re-created as maintainable web code, not auto-converted.
- Migrate the data: we map your Jet/ACE tables and relationships into a server database (such as PostgreSQL or MySQL), preserving keys, lookups and history.
- Keep workflows familiar: staff recognise the screens and reports, so day-one adoption is high and retraining is minimal.
This is the same discipline behind our wider legacy software rescue work and our custom software development service.
What you get
- Web and mobile access: the app runs in any browser on PC, tablet and phone, in the office or remotely.
- 50+ concurrent users: a server database handles many simultaneous editors with no lock conflicts or file corruption.
- Role-based access: real user accounts, permissions and an activity trail replace the open shared file.
- Automatic backups: scheduled, restorable backups instead of copying an .accdb overnight and hoping.
- Room to grow: the 2 GB ceiling disappears, and new modules can be added without rebuilding.
Because Access apps are frequently inventory or records systems, many clients align the rebuild with a proper inventory and warehouse system while they are at it.
How the project runs
- Audit: we review every form, report, macro and VBA module and document the real workflows.
- Rebuild: we construct the web application screen by screen and confirm each against the original.
- Data migration: we move your records into the server database and reconcile totals so nothing is lost.
- Training and handover: we train your team, run a parallel period, then switch over and support you remotely in English.
Frequently Asked Questions
Will my existing Access data be preserved?
Yes. Migrating your records is a core step. We map your Jet/ACE tables into a server database and reconcile row counts and totals before go-live, so your history comes across intact.
Do my staff need to learn a whole new system?
No. We rebuild the familiar forms and reports as web screens, so the layout and workflow stay recognisable. Training is short because the day-to-day actions are the same.
Can the web app handle more users than Access did?
Yes. A server database comfortably supports 50 or more concurrent users with no record-locking errors or file corruption, which is exactly the limit a shared .accdb hits.
How do we work together if you are remote?
The project is delivered remotely with English-language support throughout. We make no claims of a local office or certifications we do not hold; we collaborate over video calls, screen sharing and a shared project tracker.
