Fiber is an Express inspired web framework built on top of Fasthttp, the fastest HTTP engine for Go. Designed to ease things up for fast development with zero memory allocation and performance in mind. New gophers that make the switch from Node.js to Go are dealing with a learning curve before they can start building their web applications or microservices. Fiber, as a web framework, was created with the idea of minimalism and follows the UNIX way, so that new gophers can quickly enter the world of Go with a warm and trusted welcome.

Fiber - Express inspired web framework written in Go

K6 is a load testing tool built for engineering teams. The k6 API and CLI are easy-to-use, flexible and powerful. Create tests faster with our test builder, recorder or converters. Automate your tests to ensure that your infrastructure and application remain performant. Write tests in Javascript that mimic real-world scenarios. It has HTTP/1.1, HTTP/2, WebSocket and gRPC protocol support. 



K6 - A modern load testing tool, using Go and JavaScript

Gin is a web framework written in Go (Golang). It features a martini-like API with much better performance, up to 40 times faster thanks to httprouter. If you need performance and good productivity, you will love You can add global, per-group, and per-route middlewares, thousands of nested groups, nice JSON validation and rendering. And the performance will be still great. Gin uses httprouter internally, the fastest HTTP router for Golang. Httprouter was created by Julien Schmidt and it’s based in a Radix Tree algorithm.
 
It has very good middleware support, A incoming HTTP request can be handled by a chain of middlewares and the final action. For example: Logger, Authorization, GZIP and finally post a message in the DB.
 
Gin can catch a panic occurred during a HTTP request and recover it. This way, your server will be always available.

Gin is a web framework written in Go (Golang). It features a martini-like API with much better performance, up to 40 times faster thanks to httprouter. If you need performance and good productivity, you will love You can add global, per-group, and per-route middlewares, thousands of nested groups, nice JSON validation and rendering. And the performance will be still great. Gin uses httprouter internally, the fastest HTTP router for Golang. Httprouter was created by Julien Schmidt and it’s based in a Radix Tree algorithm.

Gin - HTTP web framework written in Go (Golang)

Pyroscope is an open source continuous profiling platform. It will help you Find performance issues in your code, Resolve issues with high CPU utilization, Understand the call tree of your application, Track changes over time. It can store years of profiling data from multiple applications. You can look at years of data at a time or zoom in on specific events. 

Pyroscope - Open Source Continuous Profiling Platform


Fast, concurrent, evicting in-memory cache written to keep big number of entries without impact on performance. BigCache keeps entries on heap but omits GC for them. To achieve that operations on bytes arrays take place, therefore entries (de)serialization in front of the cache will be needed in most use cases. 

bigcache - Efficient cache for gigabytes of data written in Go.

DJSON is a JSON decoder for Go that is 2~ to 3~ times faster than the standard encoding/json and the existing solutions, when dealing with arbitrary JSON payload. It is a good approach for people who are using json.Unmarshal together with interface{}, don't know what the schema is, and still want good performance with minimal changes.

djson - Fast Go decoder for dynamic JSON

Fortio (Φορτίο) started as, and is, Istio's load testing tool and now graduated to be its own project. Fortio runs at a specified query per second (qps) and records an histogram of execution time and calculates percentiles (e.g. p99 ie the response time such as 99% of the requests take less than that number (in seconds, SI unit)). It can run for a set duration, for a fixed number of calls, or until interrupted (at a constant target QPS, or max speed/load per connection/thread).
 
Fortio also includes a set of server side features (similar to httpbin) to help debugging and testing: request echo back including headers, adding latency or error codes with a probability distribution, tcp echoing, tcp proxying, http fan out/scatter and gather proxy server, GRPC echo/health in addition to http, etc.

Fortio (Φορτίο) started as, and is, Istio's load testing tool and now graduated to be its own project. Fortio runs at a specified query per second (qps) and records an histogram of execution time and calculates percentiles (e.g. p99 ie the response time such as 99% of the requests take less than that number (in seconds, SI unit)). It can run for a set duration, for a fixed number of calls, or until interrupted (at a constant target QPS, or max speed/load per connection/thread).

Fortio - Load testing library, command line tool, advanced echo server and web UI in Go

Ristretto is a fast, concurrent cache library built with a focus on performance and correctness. Its features include Concurrency, High Hit Ratios, Fast Throughput, Cost-Based Eviction, Metrics support.

Ristretto - A high performance memory-bound Go cache

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