Compare text differences

Compare two text versions line by line to highlight additions and deletions.

Line-by-line comparison, not minimal diff.

All files are processed strictly inside your browser memory and are never uploaded to any server.

How to use

  1. Paste original text on the left and modified text on the right.
  2. Inspect the positional line-by-line comparison.
  3. Review added lines, removed lines, and unchanged sections.

Limits & Specifications

Positional line comparison up to 1,000 lines and 100,000 characters total. Uses safe DOM text nodes without sending data to external or AI servers.

Illustrative Example

Example (Illustrative): Comparing two configuration files to verify changed port numbers or keys before deployment.

Frequently Asked Questions

Does this highlight character-level inline differences?

This utility performs positional line-by-line diffing, identifying altered and shifted rows clearly.

Can I compare very large codebases or log files?

To guarantee smooth browser performance, comparison is bounded to a maximum of 1,000 lines and 100,000 characters.