Text Compare / Diff Tool
Paste two texts to compare them side by side. Differences are highlighted inline — additions in green, deletions in red. Supports both character-level and line-level comparison.Updated 2026-03-16
How to Compare Two Texts
- Paste the original text in the left textarea.
- Paste the modified text in the right textarea.
- Choose comparison mode — line-level shows whole-line changes; character-level highlights exact character differences.
- Click "Compare Texts" to see highlighted differences below.
All processing happens locally in your browser. Your text is never uploaded to any server.
Frequently Asked Questions
What is text comparison / diff?
Text comparison (or "diff") finds the differences between two pieces of text. Additions are shown in green and deletions in red, making it easy to spot what changed between two versions.
What's the difference between line-level and character-level diff?
Line-level diff compares text line by line — if any character in a line changed, the whole line is marked. Character-level diff highlights the exact characters that differ, which is more precise for small edits.
Is this text compare tool free?
Yes, 100% free. No signup, no limits. All comparison runs in your browser — your text never leaves your device.
Can I compare code with this tool?
Yes! This tool works with any plain text including source code, configuration files, HTML, JSON, etc. Use the monospace font rendering for better code readability.
"Text Compare Tool." TxtTool, txt-tool.com, https://txt-tool.com/tools/text-compare/. Accessed 2026-03-16.