
Application modernization
Redesign and rebuild your critical applications
OneSpring brings research, design, and engineering together to rebuild the applications your business depends on. Better workflows for your people. A clearer path forward for your business.
Discuss your application

When the system becomes the bottleneck
Stop working around your software.
When critical software slows your team down, every workaround adds cost and every change becomes a risk. You need more than a technology upgrade. You need an application built around how your business works today.
OneSpring starts with the people and workflows behind your application. We identify what to keep, redesign what gets in the way, and rebuild in manageable stages. The goal: less manual work, simpler workflows, and a system your team can own.
We work with the Best
Modernize without starting over
A clear path from legacy to modern
Move forward with a clear plan, tested designs, and working software delivered in stages.
1. Understand
Find what is worth rebuilding by understanding your users, business priorities, and the system behind them.
2. Redesign
Test a better way of working with real users before investing in the build.
3. Modernize
Replace the highest-value workflows in stages, with engineers accountable for each release.
4. Adopt
Launch with the training, support, and handover your team needs to take ownership.
What changed for our clients
Results from our work
See how research and design improved the way our clients work.
Travis County, Texas
A legacy county website rebuilt for Section 508 compliance: 32% fewer pages and a 100% accessibility score.
K12 Tutoring (Stride)
A research-driven UX overhaul: 72% better scheduling task success and 43% faster admin workflows.
USDA Rural Development
Usability testing and targeted fixes: task completion time dropped 35% on second attempts.
U.S. Air Force, with SAIC
An Enterprise Portal and common interface across three Test Integration Labs, built to WCAG “AA” standards.
Built for teams that outgrew their software
Is your application holding you back?
For leaders responsible for critical software their teams have outgrown.
People lean on spreadsheets and workarounds.
Small changes take months.
The people who understand the system are leaving.
Design and engineering, start to finish
Why OneSpring
You need more than recommendations or a handoff between vendors. OneSpring connects business understanding, product design, and engineering through launch and adoption.
Design around your people
We uncover how work actually gets done, then test a better experience before writing production code.
AI-built. Engineer-owned.
As an OpenAI Select Partner, we use AI to move faster, and engineers own every release.
Your team takes ownership
Adoption is part of the work. We support launch, training, and handover, with ongoing support available.
Start Here
Let’s find the right next step.
Tell us where your application is falling short. We’ll discuss your priorities and where redesign or rebuilding could make the biggest difference.
Discuss your application
COMMON QUESTIONS
Frequently asked questions
What is application modernization?
Application modernization is improving an existing application so it is easier to use, maintain, and change, without throwing away what already works. It can range from a targeted fix to a full rebuild, and common approaches include retiring, retaining, rehosting, relocating, repurchasing, replatforming, or refactoring each part.
How do you modernize a legacy application without replacing everything?
Replace it in stages. We start with discovery, redesign the highest-value workflows first, and run the old and new systems side by side so people move over a piece at a time.
How long does application modernization take?
It depends on scope. After discovery we give you a phased plan, so you see working software in months, not years, instead of waiting for one big launch.
Do you work with government agencies?
Yes. More than half of our work has been for government, including federal and county agencies, and we design for Section 508 accessibility from the start.
Do you use AI to rewrite our code?
We use AI to speed up design and engineering, and experienced engineers review and own every release. We don’t hand your system to an automated code conversion.
Where is OneSpring based?
Atlanta, Georgia. We work with clients across the US.
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