📊Code Diff Checker

Compare two code files side-by-side with syntax-aware highlighting.

Share:

Original Text

Modified Text

About Code Diff Checker

Compare two versions of any code or text side by side, with added, removed, and changed lines clearly highlighted. Ideal for reviewing changes between file versions, comparing API responses, or spotting differences in configuration files.

How to Use Code Diff Checker

1
Enter the original text
Paste the original version of your code or text in the left panel.
2
Enter the modified text
Paste the updated version in the right panel.
3
Review the diff
Added lines are highlighted in green, removed lines in red, and changed characters are marked inline.

Common Use Cases

Comparing code versions before and after a refactor
Reviewing configuration file changes between environments
Spotting differences between two API response payloads
Auditing changes in SQL scripts or data exports

Frequently Asked Questions

What types of files can I compare?

You can compare any plain text content — source code, JSON, HTML, SQL, config files, or any other text-based format.

Does it show line-level or character-level differences?

The tool highlights differences at both the line level and within changed lines, making it easy to spot even small edits.

Related Tools

Text Diff Checker

Compare two texts side-by-side and see the differences highlighted.

JSON Formatter

Format, validate, and beautify JSON data with syntax highlighting.

HTML Prettifier

Format and indent HTML code for better readability.

Base64 Encoder/Decoder

Encode text to Base64 or decode Base64 strings back to plain text.

URL Encoder/Decoder

Encode or decode URL components for safe use in web addresses.

HTML Entity Encoder/Decoder

Encode special characters to HTML entities or decode them back.