# API Documentation Tools - Swagger Alternatives

Alternatives to Swagger UI that address common pain points:
- Attribute descriptions hidden behind clicks (Swagger hides detailed descriptions)
- Need for code examples in multiple programming languages
- OpenAPI 3.0 compatibility required

## Recommendations

### 1. Scalar (Best Free Option)
- **Website**: https://scalar.com/
- **Code examples**: Built-in code snippet generator for multiple languages and HTTP clients (copy-paste ready)
- **Descriptions**: Modern UI with better information architecture than Swagger - descriptions more visible
- **OpenAPI**: Full 3.0 support
- **Interactive**: "Try It" functionality for testing endpoints directly
- **Cost**: Free and open-source
- **Self-hosted**: Yes

### 2. Mintlify
- **Website**: https://www.mintlify.com/
- **Code examples**: Supports x-codeSamples extension, displays code in cURL, Python, JavaScript and more. Can integrate with liblab/Stainless for SDK code samples
- **Descriptions**: Clean layout with visible attribute descriptions
- **OpenAPI**: 3.0+ support, webhooks supported in 3.1+
- **Interactive**: API playground with live responses, supports multiple server environments
- **Cost**: Tiered pricing (free tier available)
- **Extra**: SOC 2, GDPR, ISO/27001 compliance, SAML SSO for enterprise

### 3. Bump.sh (Best for Teams)
- **Website**: https://bump.sh/
- **Code examples**: Supports x-codeSamples in OpenAPI specs
- **Descriptions**: 3-column Stripe-style layout - information immediately visible
- **OpenAPI**: 3.0/3.1 supported (3.1 on day of release)
- **Interactive**: Enhanced API Explorer with form-based interfaces
- **Cost**: Paid service
- **Extra**: Automatic changelog generation, access control, custom branding, SSO

### 4. Redocly (Enterprise)
- **Website**: https://redocly.com/
- **Code examples**: Auto-generated in multiple languages (paid feature only)
- **Descriptions**: Clean three-panel layout with expandable sections
- **OpenAPI**: Full 3.0 support, deep ecosystem integration
- **Interactive**: Read-only in free version
- **Cost**: Free (Redoc) / Paid (Redocly)
- **Note**: Free "Redoc" version does NOT include auto-generated code samples

### 5. Stoplight
- **Website**: https://stoplight.io/
- **Code examples**: Generates client SDKs in various languages
- **Descriptions**: Interactive documentation with better visibility than Swagger
- **OpenAPI**: Full 3.0 support
- **Cost**: Paid
- **Extra**: Also includes API design and governance tools

## Quick Comparison

| Feature                  | Scalar | Mintlify | Bump.sh | Redocly | Stoplight |
|--------------------------|--------|----------|---------|---------|-----------|
| Multi-lang code samples  | Yes    | Yes      | Yes     | Paid    | Yes       |
| OpenAPI 3.0              | Yes    | Yes      | Yes     | Yes     | Yes       |
| Interactive testing      | Yes    | Yes      | Yes     | No      | Yes       |
| Self-hosted option       | Yes    | No       | No      | Yes     | No        |
| Free tier                | Yes    | Yes      | No      | Yes     | No        |
| x-codeSamples support    | Yes    | Yes      | Yes     | Yes     | Yes       |

## Decision Guide

- **Free + Self-hosted + Full features**: Scalar
- **Best documentation UX**: Mintlify or Bump.sh
- **Enterprise with compliance needs**: Mintlify or Redocly
- **API design + documentation**: Stoplight
- **Automatic changelogs**: Bump.sh

## Sources

- [Mintlify OpenAPI Setup](https://www.mintlify.com/docs/api-playground/openapi-setup)
- [Bump.sh vs Swagger UI](https://bump.sh/compare/swagger-ui/)
- [Speakeasy - Choosing a docs vendor](https://www.speakeasy.com/blog/choosing-a-docs-vendor)
- [Stack Overflow - Swagger UI alternatives](https://stackoverflow.com/questions/36634281/list-of-swagger-ui-alternatives)