Scalar vs Fern: Features, Pricing and User Reviews 2026
What are Scalar and Fern?
Scalar is a platform for building API documentation that looks professional and works smoothly. You provide your OpenAPI document, and Scalar transforms it into easy-to-read pages with examples and testing tools built in.
The platform offers several products working together. The API Reference shows your documentation in a clean layout. The API Client lets developers test endpoints directly. The platform also includes tools for managing multiple versions of your API documents and syncing with GitHub.
Scalar is completely open-source, which means the code is public and free to use. You can host it yourself or use their cloud service. The free plan covers basic features, while paid plans add collaboration tools, custom domains, and better support.
Fern is a platform that automatically generates SDKs and API documentation from your API definition. You provide your OpenAPI, AsyncAPI, or gRPC specification, and Fern creates ready-to-use client libraries in languages like TypeScript, Python, Go, Java, Ruby, C#, PHP, and Swift.
The platform also builds documentation websites that look professional and match your brand identity. These sites include interactive API references, code examples, and a playground where developers can test your API without leaving the documentation.
Fern is open source and available on GitHub. It integrates with your existing workflow by publishing SDKs directly to package registries like npm and PyPI. The tool is designed for companies that want to provide a great developer experience without dedicating engineering resources to manual SDK maintenance.
Features of Scalar and Fern
Beautiful API documentation from OpenAPI files
Built-in testing with API client
GitHub integration and auto-sync
Custom domains and themes
Framework integrations for all major platforms
TypeSense-powered search
Multiple API versions support
Markdown and MDX guides
Team collaboration tools
Open-source and self-hostable
Free subdomain included
Custom CSS and JavaScript support
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
Use Cases of Scalar and Fern
Pricing of Scalar and Fern
Scalar offers a simple pricing structure that fits different user needs. The free plan is perfect for individual developers and includes unlimited workspaces, free subdomains, and full API reference capabilities. You can also add custom CSS and JavaScript without any restrictions.
The Pro plan costs $24 per user per month and unlocks several important features. You get custom domains so your documentation lives on your own URL. GitHub sync keeps everything updated automatically. The search function becomes more powerful, and you get priority support when you need help. Pro also includes guides and version management for complex APIs.
The Enterprise plan offers custom pricing and adds features for larger teams. You get SSO and SAML authentication, monthly documentation audits, verified workspace badges, and a dedicated Slack channel for support. Contact their sales team to discuss specific needs.
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.
FAQs: Scalar vs Fern
Reviews: Scalar vs Fern
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Compare Fern With Other Tools
Mintlify
AI-Powered Documentation Platform for Developers
Redocly
Beautiful API Documentation and Developer Portals
Apidog
Stoplight
Visual API Design and Documentation
API Hub
Complete Platform for API Design, Testing, and Documentation
Readme
Interactive API Documentation & Developer Hubs
Theneo
AI-Powered API Documentation Generator for Beautiful Developer Docs
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