Software Alternatives, Accelerators & Startups
Register | Login
Table of contents
  1. Comments
  2. Is it good?

โœ“
YAMLValidator.dev

Validate YAML syntax and schemas for Kubernetes, Docker Compose, GitHub Actions, and more. Free, private, runs entirely client-side (browser extension and website).

YAML Validator is a free, privacy-first tool for validating, formatting, and viewing YAML files โ€” available as a Chrome extension and a website.

What it does

  • Syntax validation โ€” catch indentation errors, duplicate keys, and malformed YAML instantly
  • Schema validation โ€” validate against 11+ real-world schemas with auto-detection:
    • Kubernetes, Docker Compose, Helm Chart
    • GitHub Actions, GitLab CI, CircleCI, Azure Pipelines, Bitbucket Pipelines
    • Ansible, OpenAPI 3.0, Swagger 2.0
  • Multi-document support โ€” validate files with multiple YAML documents separated by ---
  • Smart error reporting โ€” highlights the exact line, shows a gutter marker, and scrolls to the error
  • GitHub integration โ€” adds collapsible code blocks to YAML files on GitHub, making large configs easier to navigate

How it works

Paste or type YAML into the editor. YAML Validator auto-detects the schema (e.g., spots apiVersion + kind and picks Kubernetes) and validates both syntax and structure in one click. If the detected schema doesn't match, it suggests the right one with a single-click switch.

Privacy & performance

Everything runs client-side โ€” your files never leave your machine. No accounts, no server processing, no data collection. Works offline, loads instantly.

Built for DevOps workflows

Whether you're writing Kubernetes manifests, debugging a CI pipeline, or reviewing a Helm chart on GitHub โ€” YAML Validator catches errors before they reach production. The Chrome extension currently has around 800 users worldwide.

Available in 54 languages.

(0 reviews)
Platforms:
  • Google Chrome
  • Desktop
  • MacOS
  • Linux
  • Windows
Visit website Alternatives Status Page
YAMLValidator.dev

YAMLValidator.dev Reviews and Details

This page is designed to help you find out whether YAMLValidator.dev is good and if it is the right choice for you.

#Developer Tools #DevOps Tools #CI/CD #Github Actions #Kubernetes

Screenshots and images

  • YAMLValidator.dev
    Image date //
    2026-04-05
  • YAMLValidator.dev Extension popup
    Extension popup //
    2026-04-05
  • YAMLValidator.dev Enhanced GitHub YAML viewing โ€” collapsible code blocks
    Enhanced GitHub YAML viewing โ€” collapsible code blocks //
    2026-04-05

Features & Specs

  1. Schema Validation

    Kubernetes, Docker Compose, GitHub Actions, GitLab CI, CircleCI, Azure Pipelines, Bitbucket Pipelines, Ansible, Helm Chart, OpenAPI 3.0, Swagger 2.0

  2. GitHub Integration

    Syntax highlighting and code folding

  3. Multi-Document YAML

    Supports files with multiple documents separated by ---

  4. Auto-Detection

    Automatically identifies the schema based on file content

Badges

Promote YAMLValidator.dev. You can add any of these badges on your website.

SaaSHub badge
Show embed code

Questions & Answers

As answered by people managing YAMLValidator.dev.

  1. What makes YAMLValidator.dev unique?

    It validates YAML against real schemas โ€” generic YAML, Kubernetes, Docker Compose, GitHub Actions, GitLab CI, Helm, OpenAPI, and more โ€” not just syntax checking. Everything runs client-side, so your config files never leave your machine. It works both as a Chrome extension (with GitHub integration for collapsible code blocks) and as a standalone website.

  2. How would you describe the primary audience of YAMLValidator.dev?

    DevOps engineers, SREs, and backend developers who work with Kubernetes manifests, Docker Compose files, CI/CD pipelines (GitHub Actions, GitLab CI, CircleCI, Azure Pipelines), Helm charts, and OpenAPI specs. Anyone who edits YAML config files and wants instant validation without leaving the browser.

  3. What's the story behind YAMLValidator.dev?

    I am software engineer and extension(and lately site) was made out of frustration with debugging YAML indentation errors in CircleCI schemes and Kubernetes deployments. A misplaced space in a YAML file can break an entire deployment, and generic text editors don't catch schema-level mistakes. YAML Validator was built to catch those errors before they reach production โ€” directly in the browser, with zero setup.

  4. Which are the primary technologies used for building YAMLValidator.dev?

    JavaScript/TypeScript, CodeMirror (editor), js-yaml (parsing), Ajv (JSON Schema validation), Lit (web components), and Tailwind CSS. Built as a Chrome Extension (Manifest V3) with Vite as the bundler. Schemas are pre-compiled at build time for performance and CSP compliance

  5. Who are some of the biggest customers of YAMLValidator.dev?

    YAML Validator is a free, open-use tool โ€” it doesn't track users or require accounts. It's used by individual developers and teams working with Kubernetes, Docker, and CI/CD pipelines. As a privacy-first browser tool, there's no customer list by design. The browser extension currently has around 800 users worldwide.

  6. Why should a person choose YAMLValidator.dev over its competitors?

    There's simply no other Chrome extension that does this. Most online YAML tools are web-only, require an internet connection, and only check syntax. YAML Validator runs entirely offline, validates against 11+ schemas with auto-detection (Kubernetes, Docker Compose, GitHub Actions, and more), and enriches GitHub with collapsible code blocks for YAML files. It's fast, private, and requires zero setup โ€” install and go.

Videos

We don't have any videos for YAMLValidator.dev yet.

Add video

Is YAMLValidator.dev good?

YAMLValidator.dev is a solid, lightweight tool for quickly checking and formatting YAML files, making it a reliable choice for developers who work with configuration files regularly.

Why choose YAMLValidator.dev?

  • Fast, browser-based validation with no installation required
  • Clear error messages that pinpoint syntax issues by line
  • Supports formatting and beautifying YAML for better readability
  • Free to use and privacy-friendly since validation happens client-side
  • Simple, clean interface that is easy for beginners and experts alike

Recommended for

  • Developers working with Kubernetes, Docker Compose, or CI/CD config files
  • DevOps engineers who frequently edit YAML manifests
  • Beginners learning YAML syntax and structure
  • Anyone needing a quick, no-signup way to catch YAML errors before deployment

External links

We have collected here some useful links to help you find out if YAMLValidator.dev is good.

  • Public traffic stats of YAMLValidator.dev

    Check the traffic stats of YAMLValidator.dev on SimilarWeb. The key metrics to look for are: monthly visits, average visit duration, pages per visit, and traffic by country. Moreoever, check the traffic sources. For example "Direct" traffic is a good sign.

  • Domain Rating (DR)

    Check the "Domain Rating" of YAMLValidator.dev on Ahrefs. The domain rating is a measure of the strength of a website's backlink profile on a scale from 0 to 100. It shows the strength of YAMLValidator.dev's backlink profile compared to the other websites. In most cases a domain rating of 60+ is considered good and 70+ is considered very good.

  • Domain Authority (DA)

    Check the "Domain Authority" of YAMLValidator.dev on MOZ. A website's domain authority (DA) is a search engine ranking score that predicts how well a website will rank on search engine result pages (SERPs). It is based on a 100-point logarithmic scale, with higher scores corresponding to a greater likelihood of ranking. This is another useful metric to check if a website is good.

  • Public opinion on Reddit

    The latest comments about YAMLValidator.dev on Reddit. This can help you find out how popualr the product is and what people think about it.

Do you know an article comparing YAMLValidator.dev to other products?
Suggest a link to a post with product alternatives.

Suggest an article

YAMLValidator.dev discussion

Log in or Post with
Visit official website
yamlvalidator.dev

Is YAMLValidator.dev good? This is an informative page that will help you find out. Moreover, you can review and discuss YAMLValidator.dev here. The primary details have been verified within the last quarter. So they could be considered up to date. If you think we are missing something, please use the means on this page to comment or suggest changes. All reviews and comments are highly encouranged and appreciated as they help everyone in the community to make an informed choice. Please always be kind and objective when evaluating a product and sharing your opinion.

Loading...