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ENGINE DIFFACCEPTS TEXT

Text Diff

DIFFTOOL 73 OF 190

Text Diff — Compare Two Texts Online

Paste two texts and see every difference in one pane, by word or by line.

ENGINEDIFF
ACCEPTSTEXT
MAX SIZENONE
UPLOADNEVER
01Paste the original text on the left and the changed text on the right.
02Differences are highlighted line by line as you type.
03Copy or share the diff result.

About Text Diff

Need to find the differences between two text blocks? Whether you are comparing two versions of a configuration file, reviewing changes to a document, checking what was modified in a code snippet, or verifying that a migration script preserved content correctly, this tool makes differences immediately visible. Paste two texts into the left and right panels and the tool highlights additions in green, deletions in red and struck through, and unchanged text in the default color. Choose the granularity to suit the material: word by word for prose, or line by line for code and config. The result is one combined pane with additions and deletions interleaved, the way git diff shows them, and a Swap button flips which text counts as the original. The diffing algorithm uses the jsdiff library, which produces clean, minimal diffs that accurately represent the smallest set of changes between the two inputs. This is useful for developers comparing code versions, technical writers reviewing document edits, translators verifying changes between drafts, and anyone who needs to spot differences that are hard to catch by eye.

Questions

Is my data sent to a server?

No. All processing happens locally in your browser. No data leaves your device.

What diff algorithm is used?

The tool uses a standard line-by-line diff algorithm that highlights additions, deletions, and modifications — similar to what git diff produces.

Can I compare code files?

Yes. The diff tool works with any plain text including source code, configuration files, JSON, XML, or prose. Line-by-line comparison makes it easy to spot changes.

What do the colors mean?

Green highlights indicate added lines (present only in the second text), red highlights indicate removed lines (present only in the first text), and unchanged lines are shown without highlighting.

Is my file uploaded to a server?

No. Transmute processes everything locally in your browser using JavaScript and WebAssembly. Your files never leave your device — there is no server, no upload, no cloud processing.

Related

JSON FormatterFormat, validate, and minify JSON, with long numeric ids left byte for byte. Syntax errors report the exact line and column — good for API responses.TXT → JSONText Case ConverterConvert text between UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case, and PascalCase. One click per format, then live as you type.TXT → TXTWord CounterCount characters, words, sentences, paragraphs, and estimate reading time. Live updates as you type — perfect for essays, blog posts, and tweets.TXT → STATSRegex TesterTest regular expressions with real-time match highlighting and capture group inspection. Toggle the g, i, m, s, and u flags as you type.TXT → MATCH