OhAPI Designer
OpenAPI editor & validator
Only for Mac
$17.99
Mac
OhAPI Designer is a native macOS editor dedicated to OpenAPI (Swagger) specifications. Write OpenAPI 3.0 / 3.1 files in JSON or YAML with context-aware completion, clear validation, and navigation tools designed for API work.
An editor made for OpenAPI
• JSON/YAML syntax highlighting, indentation guides, auto-indent
• Breadcrumbs to stay oriented in deeply nested specs
• Light & Dark mode
Xcode-style completion and snippets
• Ctrl+Space: suggestions based on cursor context in the OpenAPI schema
• Snippets with ghost text and Tab to accept
• Navigable placeholders with Tab / Shift-Tab to fill missing values quickly
Validate and navigate faster
• Inline validation (underlines + tooltips)
• Quick navigation with Cmd-click on $ref
Properties Panel + Schema Viewer
• Operations list (method/path/summary)
• Detailed view: description, parameters, request body, responses
• Schema tab: explore schemas as a tree, with Referenced / Resolved modes
Instant examples
• View examples defined in the spec
• Example generator when none are provided, with a Copy button
OhAPI Designer is for API developers, architects, and technical writers who want a fast, native OpenAPI-focused experience on macOS.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- New: Colored HTTP method badges in the operations table for better visual clarity
- Fixed: Line numbers now update correctly when scrolling up
- Fixed: Syntax highlighting fully applied on document load without requiring a scroll
The developer, CoxOne, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- CoxOne SPRL
- Size
- 17.1 MB
- Category
- Developer Tools
- Compatibility
Requires macOS 26.2 or later.
- Mac
Requires macOS 26.2 or later.
- Mac
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- Copyright © 2026 CoxOne. All rights reserved.

