Go playground Validator by go-playground
Go Struct and Field validation, including Cross Field, Cross Struct, Map, Slice and Array diving
About Go playground Validator
From the project's README at github.com/go-playground/validator. Lightly cleaned for readability; for the full source see the upstream repo.
Package validator ================= [](https://github.com/go-playground/validator/releases) [](https://github.com/go-playground/validator/actions) [](https://coveralls.io/github/go-playground/validator?branch=master) [](https://goreportcard.com/report/github.com/go-playground/validator) [](https://pkg.go.dev/github.com/go-playground/validator/v10)
Package validator implements value validations for structs and individual fields based on tags.
It has the following unique features: Cross Field and Cross Struct validations by using validation tags or custom validators. Slice, Array and Map diving, which allows any or all levels of a multidimensional field to be validated. Ability to dive into both map keys and values for validation Handles type interface by determining it's underlying type prior to validation. Handles custom field types such as sql driver [Valuer](https://golang.org/src/database/sql/driver/types.g
Health score breakdown
6-dimension composite. See methodology for formula and weights.
Adoption signals
Real-world usage data, pulled from each registry. The bigger the numbers, the more battle-tested the project.
| Signal | Value | Source |
|---|---|---|
| GitHub stars | 20k | github.com/go-playground/validator |
| GitHub forks | 1.4k | github.com/go-playground/validator |
Release & maintenance
Is this project actively maintained, or about to die? Check the recency of last commit and last release.
| Project age | 11.2 years | since Feb 2015 |
| Last commit | 8 days ago | Apr 29, 2026 |
| Releases shipped | 181 | last: 1 months ago |
Self-hosting cost across providers
Detected requirements: 4GB RAM, 40GB disk minimum. Cheapest plan per provider that meets the requirement.
| Provider | Plan | Specs | Monthly | |
|---|---|---|---|---|
| hetzner | CAX11 | 2c · 4GB · 40GB | $4.13 USD | Deploy → |
| vultr | VC2 | 1c · 1GB · 25GB | $5 USD | Deploy → |
| linode | Nanode 1GB | 1c · 1GB · 25GB | $5.12 USD | Deploy → |
| digitalocean | Basic Regular 1GB | 1c · 1GB · 25GB | $6 USD | Deploy → |
What people say on Hacker News
Ready to self-host Go playground Validator?
Spin up a hetzner CAX11 (4GB RAM, 40GB disk) for $4.13/mo and follow the project's official install docs.
Data last refreshed May 7, 2026.
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