Swimm
Swimm combines deterministic code analysis, AI, and subject-matter expertise to help teams understand and modernize codebases.
What Swimm is
Swimm combines deterministic code analysis, AI, and subject-matter expertise to help teams understand and modernize codebases. It maps dependencies, data flows, and relationships across repositories into structured system understanding. Swimm describes API-first architecture work, large-scale migrations, and an agentic context layer that builds a codebase knowledge base for Copilot, Cursor, Claude Code, internal agents, and MCP servers. Other stated capabilities include auto-generated documentation and visual flow explanations. The process is designed for codebases with millions of lines and lists native support for more than 40 modern and legacy languages, including COBOL, Fortran, and Assembly. Outputs include documentation, knowledge bases, architecture and dependency maps, and specifications. Deployment options include cloud, on-premise, and air-gapped environments. Swimm states SOC 2 and ISO 27001 compliance. Pricing depends on lines of code and is available on request.
Good
- Maps dependencies and cross-repository relationships
- Supports 40+ modern and legacy languages
- Builds context for multiple AI tools
- Cloud, on-premise, and air-gapped deployment
- Automatic updates and repository synchronization
Watch out
- Pricing requires a custom quote
- Pricing is based on lines of code
- Enterprise compliance reports require a request
Who it suits
Swimm suits organizations modernizing complex legacy codebases, microservice architectures, or systems with regulatory constraints. It fits teams needing repository-aware documentation, architecture maps, and AI context across deployment models.
Verdict
Swimm targets large or complex codebases with analysis, documentation, modernization, and AI-context capabilities. Its code-volume pricing and deployment choices warrant clarification before purchase.
Plans and prices
From Swimm's own pricing page, checked 9 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Custom engagement pricing | Priced on request | Pricing is based on the number of lines of code; proof of concept options are available; supports cloud, on-prem, and air-gapped deployments |
The facts
Each one read from Swimm's own pages, with the date it was checked.
What it does
- AI context
- The agentic context layer builds a codebase knowledge base for tools including Copilot, Cursor, Claude Code, internal agents, and MCP servers.checked 9 Oct 2026
- Codebase scale
- Swimm says its process can work with codebases containing millions of lines of code.checked 9 Oct 2026
- Deployment
- Swimm says it supports cloud, on-premise, and air-gapped deployments.checked 9 Oct 2026
- Documentation
- Swimm describes auto-generated documentation and visualizations of flows with detailed explanations as product capabilities.checked 9 Oct 2026
- Integrations
- Swimm’s current site names Copilot, Cursor, Claude Code, internal agents, and MCP servers as tools its knowledge base can support.checked 9 Oct 2026
- Language support
- Swimm lists native support for 40+ modern and legacy programming languages, including COBOL, Fortran, and Assembly.checked 9 Oct 2026
- LLM choice
- Swimm says customers can use an internally available LLM, including Azure OpenAI Service or OpenAI Enterprise.checked 9 Oct 2026
- Modernization work
- Its offerings cover API-first architecture, an agentic context layer, and large-scale migrations.checked 9 Oct 2026
- Pricing basis
- Pricing is based on the number of lines of code the customer wants to understand.checked 9 Oct 2026
- Security
- Swimm states that it is SOC 2 and ISO 27001 compliant, with reports available upon request.checked 9 Oct 2026
- System understanding
- Its platform maps dependencies, data flows, and cross-repository relationships into structured system understanding.checked 9 Oct 2026
- What it does
- Swimm combines deterministic code analysis, AI, and subject-matter experts to help teams understand and modernize codebases.checked 9 Oct 2026
- Who it is for
- Swimm describes its work as modernization for organizations with complex legacy codebases, microservice architectures, or regulatory constraints.checked 9 Oct 2026
The company
- Headquarters
- The opened maker pages reviewed do not state Swimm’s headquarters.checked 9 Oct 2026
Alternatives to Swimm
- 1
Mintlify
Free planWebAPILinuxmacOS8.0From $450 a month - 2
Scribe
Free planWebAPIExtensionmacOS7.9From $17 a month - 3
Fern
Free planOpen sourceWebAPILinuxmacOS7.8Free plan - 4
Guidde
Free planAndroidiOSWebExtension7.8From $19 a month - 5
Tango
Free planWebExtensionmacOSWindows7.8From $22 a month - 6
GitBook
Free planWebAPI7.6From $65 a month