Swagger API Editor
Self-hosted OpenAPI editor — deploy your own instance in one click, with full control and zero vendor lock-in.
What is Swagger API Editor?
Swagger API Editor is the leading open source tool for designing and documenting REST APIs using the OpenAPI Specification (OAS). It provides a browser-based interface where developers can write YAML or JSON API definitions and instantly see a rendered, interactive documentation preview side by side.
Originally created by SmartBear under the Swagger brand, the editor is now a fully open source project maintained by the community. It supports both OpenAPI 3.0 and Swagger 2.0 (OAS2) specifications, providing real-time validation, syntax highlighting, and error detection as you type.
On Open Source Cloud you get your own private Swagger Editor instance — the same open source software, hosted on your infrastructure, ready to use in seconds.
Why Self-Host Your Swagger Editor?
Your API specs stay private
Sensitive API definitions never leave your infrastructure. Self-hosting keeps your OpenAPI specs under your control, not stored on third-party servers.
No vendor lock-in
Open Source Cloud runs the unmodified open source Swagger Editor. You can migrate to any other cloud or run it on-premises at any time — zero lock-in.
Integrate into your workflow
Connect your private Swagger Editor to internal tooling, CI/CD pipelines, and private networks. Full customization is possible because you own the instance.
Deploy Swagger Editor in One Click
Create a free account
Sign up at app.osaas.io — no credit card required to get started.
Find Swagger API Editor in the catalog
Browse the service catalog and search for "Swagger Editor" or navigate directly to this page.
Click Launch — done
Your private Swagger Editor instance is provisioned and running in seconds. You get a stable HTTPS URL you can share with your team.
Use Cases for a Self-Hosted OpenAPI Editor
API-first development teams
Teams building microservices or backend APIs can share a single internal Swagger Editor instance, keeping all spec work inside the company network.
Enterprise API governance
Organizations with strict data residency requirements need API documentation tooling that stays on their own infrastructure. Self-hosting solves this without sacrificing usability.
Contractor and agency workflows
Agencies delivering API integrations for clients can spin up a dedicated Swagger Editor per project, share the URL with the client, and tear it down when the project ends.
Open source projects
Maintainers of open source APIs can deploy a public-facing Swagger Editor pre-loaded with their spec, giving contributors an interactive view of the API without a swagger.io account.
Self-Hosted vs. Cloud-Hosted Swagger Editor
| Feature | Self-Hosted (OSC) | swagger.io online |
|---|---|---|
| Data privacy | Specs stay on your server | Stored on third-party servers |
| Private network access | Yes | No |
| Vendor lock-in | None | Dependent on service |
| OpenAPI 3.0 support | Yes | Yes |
| Setup time | Seconds | Instant |
Frequently Asked Questions
Why self-host Swagger Editor instead of using swagger.io?
Self-hosting keeps your API specifications on your own infrastructure — they never leave your network. It also removes dependence on a third-party service, letting you maintain availability and control without vendor lock-in.
Does the self-hosted version support OpenAPI 3.0?
Yes. The editor supports both OpenAPI 3.0 (OAS3) and Swagger 2.0 (OAS2). You can write, validate, and preview documentation for either version.
How long does deployment take?
Under a minute. Open Source Cloud provisions your instance immediately — no configuration, no Docker setup, no cloud account required.
Can I migrate away from Open Source Cloud later?
Yes, and that is by design. Open Source Cloud runs the unmodified open source Swagger Editor container. You can deploy the same image on AWS, GCP, Azure, or any Kubernetes cluster at any time. Zero lock-in is a core principle.
Deploy your own Swagger Editor today
Free account. No credit card. Your private OpenAPI editor running in under a minute.