Scalar

Description

Scalar is an offline-first, open-source API client designed for modern developers working with OpenAPI/Swagger. It integrates seamlessly with popular frameworks, supports live synchronization with servers, and offers a clean, modern interface for managing and testing APIs. Developers can create, organize, and share API requests while benefiting from built-in environment variables and advanced customization. Scalar is available across Windows, MacOS, Linux, and also as a hosted service.

Features

• Offline-first API Client: Use the tool without requiring a constant internet connection.
• OpenAPI/Swagger Support: Full support for OpenAPI specs with an integrated interactive API playground.
• Framework Integrations: Compatible with frameworks like Elysia, Hono, FastAPI, Express, Django, Spring Boot, and more.
• Watch Mode: Sync directly with server frameworks to keep API definitions up to date automatically.
• Environment & Parameters: Manage environment variables and dynamic parameters across requests.
• Collections Management: Save, organize, and reuse API requests efficiently.
• Customizable Documentation: Generate beautiful API references with themes, plugins, and markdown support.
• Managed Hosting: Publish documentation online with free and paid plans, SSL, custom domains, and collaboration features.

Technology Stack

• Languages & Frameworks: JavaScript, TypeScript, .NET, Django, Flask, FastAPI, Express, NestJS, Spring Boot, Rust, Go, Ruby on Rails, Vue.js, React, SvelteKit, Next.js, Nuxt.
• API Standards: OpenAPI/Swagger.
• Deployment & Hosting: Docker, Managed Edge Hosting, CDN delivery.
• Integrations: Extensive plugins and integrations with modern frameworks and platforms.

Requirements

• Basic knowledge of OpenAPI/Swagger specification.
• For self-hosting: modern web browser and optionally Docker for containerized deployment.