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Fern vs Readme: Features, Pricing and User Reviews 2026

Compare features, pricing, reviews, and more to make an informed decision

Try Fern
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Fern

Fern generates production-ready SDKs and beautiful API documentation automatically from your OpenAPI specification for multiple programming languages.

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Try Readme
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Readme

Readme is a developer documentation platform that helps teams create interactive API documentation and build better developer experiences with ease.

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Fern

  • Automatic SDK generation in 8+ programming languages

  • Stripe-style API documentation websites

  • Direct publishing to package registries

  • OpenAPI and AsyncAPI support

  • Interactive API playground with live testing

  • Custom branding and domain support

  • Built-in OAuth 2.0 and authentication

  • Automatic pagination and retry logic

  • WebSocket and SSE support

  • Version control with Git

  • AI-powered search assistant

  • Open source on GitHub

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Readme

  • Interactive API reference with Try It functionality

  • OpenAPI and Swagger file sync

  • Markdown editor for guides and tutorials

  • Multiple API version management

  • Custom domains and white-label branding

  • Real-time analytics and usage tracking

  • Team collaboration with reviews and branching

  • Changelog and discussion forums

  • SSO and advanced security

  • AI-powered documentation tools

  • Mobile responsive design

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Fern

Fern offers separate pricing for SDKs and documentation to fit different team needs.

For SDK generation, there are three tiers available:

  • Basic Plan ($250/month per SDK): Supports up to 50 endpoints with REST API support, automated publishing, and schema validation. Billed annually.

  • Pro Plan ($600/month per SDK): Includes up to 150 endpoints, WebSockets, webhooks, dedicated Slack support, and advanced features like pagination and OAuth. Billed annually.

  • Enterprise Plan (Custom pricing): Offers unlimited endpoints, SDK migration services, enterprise support with SLAs, GitHub issue monitoring, and custom code maintenance.

For documentation, pricing includes:

  • Basic Plan ($400/month): Stripe-like API reference, API playground, custom domain, and built-in components. Billed annually.

  • Pro Plan ($1,000/month): Everything in Basic plus custom React components, authenticated docs, role-based access control, and AI search capabilities. Billed annually.

  • Enterprise Plan (Custom pricing): Includes white-glove content migration, custom integrations, SSO authentication, design services, and enterprise support.

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Readme

Readme offers flexible pricing to match different team sizes and needs. The platform provides four main plans plus an optional AI booster.

The Free plan costs nothing and includes unlimited API versions, interactive API reference, markdown editor, and basic AI features like AI Dropdown and LLMs.txt support.

The Startup plan at $99 per month adds important features like custom domains, changelogs, discussion forums, MDX components, and the Agent Owlbert AI assistant with AI Doc Linting.

The Business plan at $399 per month removes Readme branding and adds advanced features including CSS/HTML customization, reusable content, metrics export, and branching for team workflows.

The Enterprise plan offers custom pricing with everything in Business plus dedicated design help, shared component libraries, custom JavaScript, audit logs, SSO, and full Docs Audit capabilities with Ask AI API access.

Fern vs Readme: Features, Pricing and User Reviews 2026