Free Config Diff Tool
Compare JSON and YAML configurations semantically. Smart structural diff that understands your configs, not just text.
Everything you need for config comparison
Semantic Comparison
Understands config structure. Ignores formatting and shows meaningful changes.
Cross-Format Support
Compare JSON to YAML, or JSON to JSON, or YAML to YAML – all work seamlessly.
Visual Diff View
Color-coded changes with inline highlighting. See exactly what changed at a glance.
Smart Options
Ignore key order, array order, or specific JSONPath patterns as needed.
Shareable Links
Every diff gets a unique shareable link. Perfect for team reviews and documentation.
Lightning Fast
Diffs cached for 1 hour. Identical requests return instantly from cache.
What can you do with config diff?
DevOps & Infrastructure
- ✓ Compare Kubernetes manifests across environments
- ✓ Review Terraform/CloudFormation changes
- ✓ Validate Ansible/Chef/Puppet configs
- ✓ Spot configuration drift
Development & Testing
- ✓ Validate API responses
- ✓ Compare environment configs (dev/staging/prod)
- ✓ Review config changes before deployment
- ✓ Document config migrations
How it works
Paste your configs
Copy and paste your JSON or YAML configs into the left and right editors.
Choose your options
Select format (JSON/YAML), ignore key order, ignore array order, or filter specific paths.
See the diff
Get a semantic diff with visual highlights, change summary, and shareable link instantly.
Frequently Asked Questions
Is this config diff tool really free?
Yes, completely free. Anonymous users get 50 comparisons per month per session. No watermarks, no hidden fees.
Can it compare JSON and YAML files?
Yes! Our tool supports cross-format comparison. Compare JSON to YAML, or JSON to JSON, or YAML to YAML – all semantically.
What makes it different from text diff tools?
Traditional diff tools compare text line-by-line. Our tool understands config structure, ignores formatting differences, and shows only meaningful changes.
Are diffs cached?
Yes. Identical diff requests (same configs and options) are cached for 1 hour to provide instant results.
Is there an API?
Yes! We provide a free REST API with the same features and limits as the web interface. Perfect for CI/CD pipelines and automation.
View API DocumentationReady to compare configs?
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