Text & Code Diff Checker

View:
Original0 lines
Modified0 lines

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

POST /api/structured-diff/ Compare two inputs

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

POST /api/structured-diff/ Compare two inputs

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. 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. 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. 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. 4

    Count statistics

    See total additions, deletions, and changed lines. Useful to estimate the scope of changes or code review effort.

  5. 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).

Frequently Asked Questions

What is Text & Code Diff Checker?
Text & Code Diff Checker compares two texts or code snippets side by side, highlighting additions, deletions, and modifications. It's a general-purpose diff tool for developers, writers, and anyone comparing text versions.
How do I use Text & Code Diff Checker?
Paste your original text in the left panel and the modified version in the right panel. The tool instantly highlights differences with color coding — green for additions, red for deletions, and yellow for changes.
Is Text & Code Diff Checker free?
Yes. This tool is free to use with immediate access—no account required.
Does Text & Code Diff Checker store or send my data?
No. All processing happens entirely in your browser. Your data never leaves your device — nothing is sent to any server.
Does it support syntax highlighting for code diffs?
Yes. The diff checker applies syntax highlighting for common programming languages, making it easier to review code changes. It supports both inline and side-by-side diff views for maximum readability.