Online Diff Checker - Compare Text, Code & Files Easily
Compare text, code, and files instantly with our online diff checker tool—ideal for spotting differences and changes with ease and accuracy.
What Is a Diff Tool?
A diff tool is a utility that helps users compare differences between two or more sets of text, files, or code snippets. Whether you're a developer tracking changes in source code or a student comparing text documents, a diff checker highlights insertions, deletions, and modifications for quick and accurate review.
Use our online diff tool to compare:
- Text blocks and paragraphs
- Source code (HTML, CSS, JS, Python, etc.)
- File content (TXT, CSV, XML)
- Documents and more
Our tool works online, instantly, and without any installation. Just paste or upload the content, and it shows you a side-by-side visual comparison.
How to Use the Online Text Comparison Tool
- Upload Files for Comparison
- Click "Upload Original File" to select your first file.
- Click "Upload Compared File" to select the second file.
This text difference checker supports quick and seamless file uploads.
- View Text Differences Instantly
- The text comparison result appears with two panels:
- The left panel shows the original content with deletions highlighted in red.
- The right panel shows the modified content with additions in green.
This makes it an ideal text comparison online tool for spotting changes fast.
- Switch Between View Modes
- Use the Unified or Split view to adjust how the text diff tool displays changes.
- Unified view shows changes in a single flow, while Split view places original and compared files side-by-side.
- Scroll to Review
- Navigate through highlighted sections using the scrollbar to locate changes efficiently.
This online text comparison tool helps you easily compare two texts, detect file differences, and highlight added or removed content, making it perfect for writers, developers, editors, and anyone needing a fast and accurate file comparison tool online.
FAQs
What is the best way to compare text online?
Use our online text compare tool to instantly identify differences between two text files. It highlights changes, added lines, and removed content.
Can I compare code using this tool?
Absolutely! Our code diff tool is optimized to handle formatting for popular programming languages like Python, JavaScript, HTML, and more.
Does it support file uploads?
Yes, you can upload and compare files like .txt, .csv, and .log for quick file diff checks.
Is this diff checker free to use?
No, it's a paid tool—but you get 10,000 free API credits to test its features before purchasing.
Can I compare two Excel files?
While our tool focuses on text and code, you can export Excel content as text (CSV or plain text) and use the diff tool for comparison.