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Top 23 Go Code-Generator Projects
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CodeRabbit
CodeRabbit: AI Code Reviews for Developers. Revolutionize your code reviews with AI. CodeRabbit offers PR summaries, code walkthroughs, 1-click suggestions, and AST-based analysis. Boost productivity and code quality across all major languages with each PR.
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xo
Command line tool to generate idiomatic Go code for SQL databases supporting PostgreSQL, MySQL, SQLite, Oracle, and Microsoft SQL Server (by xo)
XO doesn’t have them built-in, but it uses easily customizable templates.
I added support for a bunch of postgres fancy stuff in a previous app, it wasn’t too difficult
https://github.com/xo/xo
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It gets mentioned a lot in the context of database/sql and sqlc alternatives, but Jet has been a great alternative so far, most notably because of its non-issue with dynamic queries support.
https://github.com/go-jet/jet/
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With tools like ogen[1], one can take a single Swagger or OpenAPI doc and generate server code with request/response validation, Prometheus metrics, OpenTelemetry, and more.
It can also generate clients and webhooks. Authentication is just declaring a SecurityScheme in the OpenAPI documentation then implementing a single function. The rest of the backend is just implementing a single interface. Unlike oapi-codegen, there is no need to tinker with middleware for authentication or logging.
Pair this with a tool like sqlc[2] and SQLite's `pragma user_version`, and you get type-safe database code and database migrations for free. I will concede that adding SQLite is a manual process, but its just two imports added to main.go.
Frontend is entirely your choice. Go's standard library provides good enough text templating that I don't miss ERB or Django-style templates. Using embed/fs, one can easily embed a bunch of assets into a single static binary, so deployment can be as simple as `go build` and moving a single binary.
I actually have a hard time using languages besides Go for developing backends, because the code generation tools eliminate the boilerplate I frequently face in other languages while also avoiding the hundreds of dependencies that Spring Boot or Quarkus need.
[1] https://ogen.dev/
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InfluxDB
InfluxDB high-performance time series database. Collect, organize, and act on massive volumes of high-resolution data to power real-time intelligent systems.
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hof
Framework that joins data models, schemas, code generation, and a task engine. Language and technology agnostic.
Project mention: How to include Git version information in a Golang binary | news.ycombinator.com | 2025-01-19 -
copygen
Copygen generates code based on Go types. Generate type-based code to copy values from type to type and fields from struct to struct by default (copier without reflection).
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Project mention: Show HN: Rill – Composable concurrency toolkit for Go | news.ycombinator.com | 2024-11-25
Sourcegraph Conc is broadly similar in providing pool helpers, but doesn't provide the same fine grained batching options: https://github.com/sourcegraph/conc
Uber CFF does code generation, and has more of a focus on readability and complex dependency chains: https://github.com/uber-go/cff
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openapi-generator-go
An opinionated OpenAPI v3 code generator for Go. Use this to generate API models and router scaffolding.
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Go Code-Generator discussion
Go Code-Generator related posts
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How to include Git version information in a Golang binary
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Libero – A Programmer's Tool and Code Generator [Legacy]
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Hof v0.6.9 – more CUE powered tools and extensions
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Show HN: Use Go's HTML/template to write React-like code
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Show HN: Syntax highliting tool for code snippets in HTML
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Using Cuelang With Go for extracting structured data from LLMs
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Looking for help with transpiling TypeScript to Golang and Python using LLMs
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A note from our sponsor - SaaSHub
www.saashub.com | 23 Apr 2025
Index
What are some of the best open-source Code-Generator projects in Go? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | sqlc | 14,792 |
| 2 | GoSwagger | 9,724 |
| 3 | gotests | 5,014 |
| 4 | xo | 3,806 |
| 5 | jennifer | 3,472 |
| 6 | jet | 3,087 |
| 7 | ogen | 1,672 |
| 8 | hof | 543 |
| 9 | copygen | 381 |
| 10 | xgen | 359 |
| 11 | kyaml2go | 284 |
| 12 | cff | 205 |
| 13 | openapi-cli-generator | 190 |
| 14 | toolkit | 159 |
| 15 | deep-copy | 155 |
| 16 | openapi-generator-go | 109 |
| 17 | easygen | 64 |
| 18 | convergen | 45 |
| 19 | newc | 33 |
| 20 | hofmod-cli | 26 |
| 21 | mjson2go | 24 |
| 22 | sqlc-gen-fsharp | 18 |
| 23 | gogenswagger | 5 |
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