Meteor
ExpressJS
Node.js
Ruby on Rails
Django
Laravel
ASP.NET
Grails
YAMLValidator.dev
YAMLine
ValidKube
yamlfmt
YAML
JSON to YAML
JSON Formatter & Validator
KuberLogic
YAML Validator is a free, privacy-first tool for validating, formatting, and viewing YAML files โ available as a Chrome extension and a website.
---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.
Everything runs client-side โ your files never leave your machine. No accounts, no server processing, no data collection. Works offline, loads instantly.
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.
Meteor YAMLValidator.devMeteor is recommended for startups and individual developers who need to rapidly develop and deploy their applications. Itโs also suitable for teams focusing on applications where real-time data synchronization is crucial, such as chat applications or collaborative tools.
No YAMLValidator.dev videos yet. You could help us improve this page by suggesting one.
YAMLValidator.dev's answer:
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.
YAMLValidator.dev's answer:
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.
YAMLValidator.dev's answer:
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.
YAMLValidator.dev's answer:
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
YAMLValidator.dev's answer:
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.
YAMLValidator.dev's answer:
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.
Based on our record, Meteor seems to be more popular. It has been mentiond 14 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Do you mean real-time data / live sync? It is actually the next thing we're going to release, so yes - it is definitely a core part. We took our inspiration from https://meteor.com and it had a big emphasis on live data which we're going to support in a more scalable way. - Source: Hacker News / about 1 year ago
Our new Meteor brand represents our commitment to modern JavaScript. It features a cleaner, more contemporary design that represents our future direction rather than just our heritage. The redesigned Meteor website is now ready and includes a really cool interactive demo that showcases what Meteor can do. We're excited for you to check it out and experience Meteor's capabilities firsthand. - Source: dev.to / over 1 year ago
MeteorJS brings client-side reactivity out of the box. No matter which frontend framework you choose, you will always have an integrated reactivity that synchronizes your data and the UI. This is one of the core strengths of MeteorJS. - Source: dev.to / almost 2 years ago
The next major MeteorJS release is coming in July 2024! After more than two years of development, this is the final result. The first discussions started in June 2021 and there has been multiple alphas, betas, rcs and a huge amount of package updates. These were constantly battle-tested by the Meteor Core team and the Community, shaping the features and performance of the platform one by one. - Source: dev.to / about 2 years ago
Meteor.js is a full-stack JavaScript platform for developing modern web and mobile applications. Meteor includes a key set of technologies for building connected-client reactive applications, a build tool, and a curated set of packages from the Node.js and general JavaScript community. - Source: dev.to / about 3 years ago
ExpressJS - Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple
YAMLine - Yamline offers a suite of online YAML tools, including a Comparator, Formatter, Validator, and various converters for formats like JSON and Properties.
Node.js - Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications
ValidKube - ValidKube combines the best open-source tools to help ensure Kubernetes YAML best practices, hygiene & security.
Ruby on Rails - Ruby on Rails is an open source full-stack web application framework for the Ruby programming...
yamlfmt - An extensible command line tool or library to format yaml files. - GitHub - google/yamlfmt: An extensible command line tool or library to format yaml files.