Overview
Gin is a high-performance HTTP web framework for Go. It offers a Martini-like API with, according to the project, up to 40 times better performance thanks to httprouter, and a zero-allocation router that avoids heap allocations while matching routes.
The core covers what most APIs need: route groups with shared middleware, automatic binding and validation of JSON and form data into structs, centralised error handling, rendering of JSON, XML and HTML templates, and built-in recovery middleware so a panic does not crash the server. gin.Default() adds the logger and recovery middleware.
Anything else comes from middleware. The official gin-contrib collection includes JWT, basic auth and sessions, CORS, rate limiting, compression, logging, metrics, tracing and static files. The Go team's own tutorial on go.dev uses Gin to build a RESTful API, which is one reason it is a common first choice.
Gin requires Go 1.25 or newer and is maintained by the gin-gonic organisation on GitHub. There is no paid edition or company behind it.
Pricing and plans
What it does
- Zero-allocation router
- httprouter-based routing with no heap allocations.
- Binding and validation
- Bind JSON, XML and form data to structs with validation tags.
- Route groups
- Group routes and apply shared middleware.
- Recovery middleware
- Built-in recovery keeps panics from crashing the server.
- Rendering
- JSON, XML and HTML template responses.
- gin-contrib
- Official middleware for auth, CORS, rate limiting, sessions, metrics and tracing.
Strengths and limitations
Strengths
- Very widely used, so examples and answers are easy to find
- Fast routing with a small, familiar API
- Used in the Go team's own REST tutorial
- Large middleware ecosystem
Limitations
- Minimal by design: no ORM, migrations, DI or project structure
- Requires Go 1.25 or newer
- Many capabilities live in separate gin-contrib or community middleware of varying upkeep
- Its gin.Context API is Gin-specific, so handlers are not plain net/http handlers
Who it suits
Good for
- REST APIs and microservices in Go
- Teams new to Go who want lots of examples
- High-throughput JSON services
Look elsewhere if
- Teams wanting a full-stack framework with ORM and admin
- Projects that want to stay on pure net/http handlers
Alternatives to Gin
| Tool | From | Free option | Stages |
|---|---|---|---|
| Fastify High-performance Node.js web framework | — | ||
| ASP.NET Core .NET web framework | — | ||
| Encore Backend framework with infrastructure from code | $49/mo | Free tier | |
| Django Batteries-included Python web framework | — | ||
| Ruby on Rails Full-stack Ruby web framework | — | ||
| Laravel Batteries-included PHP framework | $5/mo |
Questions
Is Gin the most popular Go framework?
It is one of the most widely used, and the Go team's own REST API tutorial uses it.
Which Go version does Gin need?
Go 1.25 or higher.
Does Gin validate requests?
Yes. It binds JSON and form data to structs and validates them.
Is Gin free?
Yes, it is MIT licensed.
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