About Yaml Workbox
Yaml Workbox is a free online YAML toolbox for DevOps, backend and platform engineers. Format, lint, convert, compare, validate, generate structs and preview OpenAPI or Helm Values — all in the browser.
It belongs to the same Workbox family as MdWorkbox and TokenWorkbox: local-first tools, SEO-friendly pages, optional blog.
Typical workflows include Kubernetes manifests, Docker Compose files, CI YAML, OpenAPI contracts and Helm-style templates. Each tool has its own URL so you can bookmark, share and search independently.
What you can do
- Format and lint YAML (including multi-document --- files)
- Convert YAML ↔ JSON and YAML ↔ TOML
- Semantic Diff with text fallback; path query; tree / flatten; multi-doc split/merge
- JSON Schema validation with OpenAPI and Kubernetes starter templates
- YAML → struct (nine languages); OpenAPI Swagger UI preview; simple Helm Values substitution
Principles
- Never upload tool editor content to our servers
- One focused tool per URL for clarity and SEO
- Sensible defaults for Kubernetes, Compose and OpenAPI YAML
- No account required to use the tools
Contact
Questions or bugs? Use the Feedback page. Blog posts live under /blog when the content backend is enabled.