YAML Format

Pretty-print and repair YAML locally (multi-doc supported). Anchors and custom tags may not round-trip.

How to use

  1. Paste YAML
  2. Format
  3. Copy the result

FAQ

Is my input uploaded?

No. Processing stays in your browser. Nothing is sent to our servers.

Related tools

  • YAML Diff — Compare two YAML documents with a structured diff — locally in your browser.
  • YAML Documents — List, select, and extract documents from multi-doc YAML streams (---).
  • Convert — Export YAML to JSON or TOML (anchors and tags may be lossy).