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RAML to OpenAPI 3 Converter

Convert RAML 1.0 API definitions into OpenAPI 3.0 or 3.1 — YAML or JSON — entirely in your browser. Types become JSON Schema, resources become paths, and every issue is reported with context.

RAML RAML 1.0API Modeling Language OAS OpenAPI 3.xOpenAPI Specification OAS → RAML

⚡ Instant, client-side 🔒 Your spec never leaves the browser ✓ Structural validation ↔ Types & schemas mapped

Input

OpenAPI version

Output format

Auto-convert

RAML api.raml

OAS openapi.yaml

Validation & conversion report

0 errors 0 warnings

Paste a spec (or load the sample) to see conversion results.

Structure mapping

`title`, `version`	→ `info`
`baseUri`	→ `servers`
`/resource`	→ `paths` (nested joined)
`types`	→ `components.schemas`
`body`	→ `requestBody`

Type mapping

`Order[]`	→ `type: array, items`
`type: Order`	→ `$ref`
`name?:`	→ optional (not in `required`)
`datetime`	→ `string, format: date-time`
`string \| number`	→ `oneOf`

Good to know

Accepts YAML or JSON input

Nested resources are path-joined

Security schemes are mapped best-effort

Advanced features (traits, resourceTypes, callbacks) are flagged, not dropped

Everything runs locally — safe for private specs