YAMLValidator.dev
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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.
accessiBe is the #1 fully automated, AI-powered, web accessibility solution for ADA and WCAG compliance.
The process of becoming compliant using accessiBe is a no-brainer: within 48 hours, after installing just a single line of code, your site is fully accessible and compliant, just like that.
On top of making your website accessible, we also provide a support litigation package, a monthly scan report, an accessibility statement, and thanks to the AI, a 24/7 accessibility maintenance.
accessiBe utilizes a foreground (interface) and a background (AI) components that, together, achieve full compliance. The system scans and analyzes your website using AI technology and applies all the required adjustments to become ADA and WCAG 2.1 compliant.
The solution was developed for 18 months of intensive work with people with disabilities, in collaboration with the lead developer of JAWS (the most common screen reader in the world), web accessibility experts, and legal advisers.
Thanks to accessiBe, every website owner now has an affordable, effortless, and a scalable web accessibility solution.
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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, accessiBe seems to be more popular. It has been mentiond 3 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.
I was surprised to find how easily https://accessibe.com/ can add some accessibility options to an existing site this week. I was half expecting it to break the site styles when toggling through the options but it did a really fine job while keeping the character of the site intact. It was a one-line script include. Sure, itโs complex to build that all from scratch but thankfully we have services coming in to help. - Source: Hacker News / over 3 years ago
Accessibility tip: accessibility overlays like accessiBe generally donโt work, and may even get you sued. Thereโs no shortcut to good accessibility. Get yourself dedicated accessibility testers and put real effort into this stuff. - Source: dev.to / about 4 years ago
This company is accessiBe and they provide a solution that is automated and scalable, growing with you into the future as your site evolves. - Source: dev.to / almost 5 years ago
YAMLine - Yamline offers a suite of online YAML tools, including a Comparator, Formatter, Validator, and various converters for formats like JSON and Properties.
UserWay - Accessibility isnโt just โcompliance.โ - Itโs revenue, brand loyalty, and better UX.
ValidKube - ValidKube combines the best open-source tools to help ensure Kubernetes YAML best practices, hygiene & security.
axe DevTools - Efficient and effective accessibility testing is here.
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.
Siteimprove - Consider the Siteimprove Intelligence Platform the newest member of your team.