What is the difference between Lines, Words, and Chars modes?

Lines mode looks for differences between whole lines — best for code and config files. Words mode compares word by word while preserving whitespace — good for editing prose. Chars mode finds every difference at the individual-character level — useful when two strings are almost identical but differ in one or two characters.

What is the difference between Split and Unified views?

Split shows both texts in parallel: the original on the left with red highlighting for removed content, the modified version on the right with green highlighting for added content. Unified renders a single stream with +/- markers, just like git diff output. Both layouts are available only in Lines mode.

Yes. The tool works with plain text, so it is equally good for code, prose, JSON, config files, and any other text data.

Are my texts stored on the server?

No. All comparison runs locally in your browser. Texts never leave your device and are not kept after the page is closed.

Does it find differences inside a line?

Yes. In Words and Chars modes, differences are highlighted inside the line rather than across the whole line. If a single character in a long ID changed, only that character gets highlighted — not the entire line.

Compare Text

Compare two texts or code snippets by line, word, or character — differences are highlighted right in the text. Three comparison modes and two layouts for line-level diff: Split and Unified.

How to use

Paste the original text

Put the first version in the left panel.

Paste the modified text

Put the second version in the right panel.

Pick the granularity

Lines for code and configs, Words for prose, Chars for when individual characters matter.

Read the highlights

Added fragments are highlighted in green, removed ones in red. The result updates as you type.

CharsWordsLines

Original

Modified

Features

Three comparison modes

Line-level, word-level, or character-level — switch in one click. Pick the mode that fits the task: code is easier to compare line by line, while IDs and serial numbers make more sense character by character.

Real-time difference highlighting

Added fragments in green, removed in red. The result updates immediately — no Compare button to press.

Split and Unified views

Line mode offers two layouts: parallel columns or a single stream with +/- markers, just like a git diff.

Diff inside the line

In Words and Chars modes you see exactly what changed inside the line — down to a single character. Only the differences are highlighted; the rest of the text stays untouched.

Works with code and prose

Processes text as-is — equally good for code, JSON, config files, articles, contracts, and any other text.

Change statistics

Counters at the top show how many lines, words, or characters were added and removed. The metric adapts to the selected mode.

Swap and clear

The Swap button flips the two texts, Clear resets both fields. Both act instantly.

When it helps

Compare two revisions of a document or contract
See what changed between two versions of a code file
Diff JSON or config files across environments
Review edits between drafts of an article
Find the mismatch between two long numbers, IDs, or hashes

Frequently Asked Questions

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