Text & Code Diff Checker
Paste or type text into both panels above to see the diff.
What This Tool Does
Text & Code Diff Checker is built for deterministic developer and agent workflows.
Compare text, JSON, and YAML with structured change detection for reviews, debugging, and CI pipelines.
Use How to Use for execution steps and FAQ for constraints, policies, and edge cases.
Last updated:
This tool is provided as-is for convenience. Output should be verified before use in any production or critical context.
Agent Invocation
Best Path For Builders
Dedicated API endpoint
Deterministic outputs, machine-safe contracts, and production-ready examples.
Dedicated API
https://aidevhub.io/api/structured-diff/ OpenAPI: https://aidevhub.io/api/openapi.yaml
Unified Runtime API
https://aidevhub.io/api/tools/run/?toolId=diff-checker&a=...
GET and POST are supported at /api/tools/run/ with identical validation and limits.
Limit: req / s, input max 512 KB.
REST API
Base URL
https://aidevhub.io/api/structured-diff/ 50 requests/day per IP. No authentication required. CORS enabled. OpenAPI spec
Endpoints
Example
curl -X POST https://aidevhub.io/api/structured-diff/ -H "Content-Type: application/json" -d '{"a": "hello world", "b": "hello earth"}' Example Response
{
"format": "text",
"changes": [
{
"type": "modified",
"old": "hello world",
"new": "hello earth"
}
]
} How to Use Text & Code Diff Checker
- 1
Paste two versions of text or code
Paste the original version in the left panel and the modified version in the right panel. Works for any text, code, or configuration files.
- 2
View side-by-side diff highlighting
Additions are highlighted green, deletions in red, changes in yellow. The viewer automatically aligns similar lines for easy comparison.
- 3
Toggle between split and unified view
Switch between side-by-side (split) and consolidated (unified) diff view. Use unified view for a more compact representation.
- 4
Count statistics
See total additions, deletions, and changed lines. Useful to estimate the scope of changes or code review effort.
- 5
Copy specific sections or entire diff
Select and copy individual line changes or the entire diff. Format is standard unified diff (compatible with git patch and other tools).