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Validate, format, lint, and convert YAML manifests, Kubernetes specs, OpenAPI schemas, and Docker Compose files online. 100% client-side execution guarantees zero network data transmission.
apiVersion: apps/v1
kind: Deployment
metadata:
name: himat-api-gateway
namespace: production
labels:
app.kubernetes.io/name: api-gateway
app.kubernetes.io/managed-by: himat
spec:
replicas: 3
selector:
matchLabels:
app: api-gateway
template:
metadata:
labels:
app: api-gateway
spec:
containers:
- name: gateway
image: "himat/api-gateway:v2.4.0"
ports:
- containerPort: 8080
name: http
env:
- name: NODE_ENV
value: production
- name: PRIVACY_MODE
value: 100-client-side
resources:
limits:
cpu: 500m
memory: 512Mi
requests:
cpu: 100m
memory: 128MiPaste raw YAML code into the editor or upload a .yaml / .yml file. Or select built-in DevOps presets like Kubernetes or Docker Compose.
The tool instantly validates syntax and highlights any line errors. Switch modes to convert bidirectionally between YAML and JSON with custom indentation.
Copy formatted output to your clipboard with one click or download clean .yaml or .json files directly.
Zero server uploads. Your Kubernetes specs, OpenAPI schemas, Docker Compose files, and CI/CD pipelines are validated purely inside browser memory.
Pinpoints syntax errors, indentation mismatches, and malformed quotes with exact line numbers and detailed diagnostic messages.
Seamlessly convert YAML to formatted JSON or convert JSON payloads back into valid YAML with a single click.
Re-format unaligned YAML blocks with custom 2-space or 4-space indentation and optional key sorting for clean version diffing.
Load sample configurations including Kubernetes Pod specs, OpenAPI 3.0 specs, and Docker Compose manifests with one click.
Copy formatted output instantly or download processed files directly as `.yaml` or `.json` files.
Our YAML engine is open source under HiMat Technology. Star the repo, inspect the source, or submit contributions on GitHub.
Unlike traditional online validators that send configuration files to remote cloud servers, HiMat's validator runs 100% locally inside your web browser. Your Kubernetes secrets, database credentials, and CI/CD pipelines are never transmitted across the network.
No. The HiMat YAML Validator & Converter operates 100% locally inside your web browser. Neither your YAML strings, Kubernetes secrets, nor configuration payloads are transmitted over the network.
Our browser-local parser checks indentation levels, scalar types, sequence syntax, and mapping pairs, returning precise line and column numbers whenever a syntax violation occurs.
Yes! Our conversion engine handles complex multi-level mappings, sequences, strings, booleans, null values, and nested objects without losing data integrity.
Yes, 100% free with no registration required, no file size limits, and zero advertisements.
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HiMat Technologies provides enterprise-grade cloud modernization, web development, platform engineering, and retainer maintenance for growing tech teams.