Online Text Comparison

Online Text Comparison Tool

The online text comparison tool compares two pieces of text, code, or file contents to quickly identify additions, deletions, and modifications. Enter the original content and the modified content to view the specific changes between the two versions.

Main Features

• Supports Diff comparison of two text or code blocks.
• Supports line-level, word-level, and character-level comparison so you can choose the appropriate granularity.
• Highlights added, deleted, and modified content and displays the corresponding line numbers.
• Supports side-by-side and unified views for convenient version comparison.
• Supports quick navigation to the previous and next difference, making it suitable for comparing long text and code.
• Supports ignoring whitespace, case, leading and trailing spaces, and line break differences to reduce meaningless comparison results.

How to Use Text Diff

1. Enter or import the first version in the original text area.
2. Enter the second version in the modified text area.
3. Select line-level, word-level, or character-level comparison.
4. Enable options to ignore whitespace, case, or line breaks as needed.
5. Click Start Comparison to view the specific additions, deletions, and modifications.

What Content Can Be Compared?

This tool is suitable for comparing ordinary text, code, and structured content, including PHP, JavaScript, TypeScript, HTML, CSS, SQL, JSON, XML, YAML, Markdown, and Nginx configuration files.

Code Diff Comparison

Code Diff helps developers quickly inspect code changes between two versions. Line-level comparison is suitable for structural changes, while word-level and character-level comparison can further identify changes to variable names, parameters, punctuation, and other details.

Common Use Cases

• Code Review: Compare code before and after changes to quickly identify additions, deletions, and modifications.
• Configuration File Comparison: Check version differences in JSON, YAML, Nginx, and other configuration files.
• SQL Comparison: Check changes in SQL scripts and database queries.
• Content Review: Compare changes in articles, product descriptions, and other written content.
• Document Version Comparison: Quickly locate additions and deletions between different document versions.

How to Choose a Comparison Mode

Line-level comparison is suitable for code, configuration files, and long text because it quickly locates changed lines. Word-level comparison is suitable for articles and content because it reduces interference caused by entire-line changes. Character-level comparison is suitable for checking subtle differences in short Chinese text, variable names, punctuation, and similar details.

Understanding Comparison Results

The comparison result displays different difference types according to content changes. Identical content means the two versions are consistent. Added content exists only in the modified version, deleted content exists in the original version but was removed from the modified version, and modified content indicates that the corresponding position has changed.

Usage Notes

When comparing code or configuration files, choose the comparison granularity according to your needs. If two files differ only in line breaks or whitespace formatting, enable the relevant ignore options to avoid producing large numbers of meaningless differences.

Privacy

If you need to compare passwords, keys, personal information, or other sensitive content, confirm that the data is appropriate for processing in a web environment before using an online tool. For highly sensitive data, locally installed tools that have undergone appropriate security assessment are recommended.