⇄ Text & Code Diff Checker

Compare two files or code snippets and view differences highlighted line by line. Supports unified and split-view modes. Free online diff checker — no signup, works in browser.

Original Upload file

Modified Upload file

How to Use

Paste or upload texts

Enter your two texts in the left and right panels. Use the upload button to load files directly.

Choose view mode

Switch between Split view (side by side) and Inline view (unified diff) using the toggle.

Review the changes

Green lines were added, red lines were removed. Changed lines show word-level highlights inside.

Frequently Asked Questions

What is the difference between inline and split view? +

Split view shows the two texts side by side, with additions highlighted green on the right and deletions in red on the left. Inline view shows both in a single column — red lines were removed, green lines were added. Split is better for reading context; inline is better for seeing exactly what changed.

Can I upload files to compare? +

Yes — click "Upload File" above each panel to load any text or code file. Common formats include .txt, .js, .ts, .py, .json, .html, .css, .md, .yaml, and more. Files are read locally and never uploaded to a server.

Does this highlight word-level changes? +

Yes — for lines that are similar but changed, the tool highlights the specific words or characters that differ within the line (shown with a darker background). This helps identify small changes in long lines.

Is there a size limit for comparison? +

There is no hard limit, but comparisons of very large files (10,000+ lines) may be slow since everything runs in your browser. For very large codebases, a dedicated diff tool like git diff is recommended.

Is my content sent to a server? +

No. The entire comparison runs in JavaScript in your browser. Your text and files never leave your device.

संपूर्ण गाइड: Diff Checker

Diff Checker क्या है?

Diff Checker दो texts के बीच differences को visually highlight करता है। यह Unix diff utility का web-based version है। Code reviews, document version comparison, configuration file changes, और database schema comparisons के लिए essential tool है।

यह tool line-by-line और character-level differences दोनों दिखाता है। Added lines green, removed lines red, और modified lines yellow में highlight होती हैं। Unified और split view दोनों available हैं।

कैसे उपयोग करें

Original text left panel में paste करें।
Modified text right panel में paste करें।
Compare click करें differences highlight करने के लिए।
View mode choose करें: split या unified।
Ignore whitespace option use करें formatting-only changes ignore करने के लिए।

Pro Tips

Config files compare करने से पहले comments remove करें false positives avoid करने के लिए।
Character-level diff use करें exact typos या small changes find करने के लिए।
Large files के लिए specific sections extract करके compare करें।