About Compare YAML
Compare YAML configuration files to spot value changes, missing keys, and indentation shifts between environments — dev vs prod, Helm chart versions, or CI config revisions. Full YAML syntax highlighting in both panes.
Frequently Asked Questions
What is a YAML diff tool?
A YAML diff tool compares two YAML documents and highlights every difference — added keys in green, removed keys in red, and changed values shown inline. It is the fastest way to spot configuration drift between two versions of a YAML file.
Does a YAML diff ignore whitespace and comment differences?
Yes. The diff parses both YAML documents and compares their data structures, so indentation differences and comments are ignored. Only changes in keys, values, or document structure appear. This is essential for YAML since the same data can be formatted many different ways without changing meaning.
How do I compare two Kubernetes YAML manifests to find what changed?
Paste the old manifest into the left panel and the new one into the right. The diff highlights changed resource fields (replicas, image tags, env vars) while ignoring formatting noise. This is the fastest way to review a Helm chart upgrade or a kubectl apply change before applying it to production.
Can a YAML diff handle multi-document files separated by ---?
Multi-document YAML (multiple documents separated by ---) is parsed as a sequence of documents. Differences in document count or content are highlighted. If both files have the same number of documents, they are compared pairwise. Mismatched document counts are shown as additions or deletions.
Is my YAML code sent to a server when using this online diff tool?
No. All comparison runs entirely in your browser using a client-side YAML parser. Your YAML is never transmitted to any server. This is safe for private Kubernetes configurations, secrets files, and infrastructure-as-code that may contain sensitive values.
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