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Swimm: Application Understanding Platform







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- Product
- Application understandingSwimm platform overview
- How it worksInside Swimm
- IntegrationsConnect your existing stack
- Use Cases
- Legacy codeModernize & maintain
- Documentation platformDocumentation for enterprise
- Technology service providersSpeed up code discovery
- Resources
- BlogLatest posts & updates
- Resource center
- Resources
- GuidesWhitepapers, eBooks & more
- Customer storiesHear from devs using Swimm
- WebinarsOn-demand videos
- Learning centerExpand your knowledge
- Enterprise
- Pricing

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# Extract business rules from mainframe code

Accelerate your modernization timeline by automatically reverse engineering your application, eliminating thousands of hours of manual research

Get a demo



## Control your mainframe future

Analyze

AI-powered static analysis builds a knowledge base from your code, revealing architecture, patterns, and hidden logic.

Inventory

Swimm creates a living inventory of programs, modules, and dependencies with explanatory names.

Assess

Uncover business logic buried in legacy code.
See how your system works — and where change is needed.

Spec

Turn insights into action. Plan migrations, write specs, and align teams around clean, modern architecture.

## Mainframe code unlocked like
never before

### Map of your system

Get a complete overview of your codebase’s
architecture, including programs, modules, screens,
jobs, and their relationships. Document business logic
of programs while ignoring boilerplate code.



### Understand dependencies

Automatically generate diagrams with clear
explanations and context. Track user screens,
variables, and job flows to easily understand
how variables get values and users reach
screens.



### Create specs

Reverse engineer your business rules giving non-
technical stakeholders immediate access to the current
specifications.



## Clarity for modernization teams

CIO

Accelerate timelines, de-risk initiatives, free operational budgets

Product & Analyst

Create specs without relying on mainframe experts

Developer

Understand every part of the code and how it is connected

## Built for trust

Too many AI based solutions fail to deliver in production because LLMs are not reliable on complex legacy codebases. Swimm is built differently. Our foundation of advanced deterministic code analysis combined with the power of AI delivers results you can trust.

No hallucinations

Every explanation is accurate

Complete

All relevant information is surfaced

Customizable

Documentation tuned to your codebase

Fast

Document large codebases in hours

## Enterprise-grade.
Secure by design.

Secure and compliant

- SOC2 and ISO 27001 compliant
- Secure cloud and on-premise deployment

Request SOC2 report

Scalable

- Scales to any size codebase
- Runs locally with limited resource requirements

Customizable

- Customize outputs according to organizational standards
- Stay in your network with your LLM

## Proven at scale

300m

Code-lines explained

1.2k

Teams

10x

Faster code exploration

## Untangle your mainframe code with Swimm

Get a demo

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