Text Compare: Free Online Text Comparison Tool — How-To Guide

Try it free: Text Compare

Comparing two versions of a text by eye is slow and error-prone. One paragraph moved, a sentence reworded, a number changed — and you have to find it. Text Compare does the work for you: paste two blocks of text and it highlights exactly what was added, removed, or changed, line by line.

What the Tool Does

Text Compare is a free online text comparison tool that shows the differences between two pieces of text. It counts added, removed, and changed lines, and presents the result in a clear side-by-side view so you can scan the differences in seconds.

It is useful whenever you need to check what changed between two versions of something: a draft and its revision, two copies of a document, a config file before and after an edit, or two versions of a code snippet. The tool also lets you download the result as a readable .txt report, or export a unified .patch file if you work with developer workflows.

Everything runs locally in your browser. Your text is never uploaded to a server, so it is safe to compare drafts, notes, logs, and other sensitive content.

How to Use It — Step by Step

1. Open the tool. Go to Text Compare. There is nothing to install and no account to create.
2. Paste the original text into the first box. This is the "before" version — the draft, document, or file you started with.
3. Paste the revised text into the second box. This is the "after" version you want to compare against the original.
4. Review the comparison. The tool shows a summary of added, removed, and changed lines, and highlights the differences so you can see at a glance what moved.
5. Copy or download the result. Copy the comparison, or download it as a .txt report for your records. Developers can also export a unified .patch file.

That is the whole workflow. Most comparisons take less than a minute from paste to answer.

Practical Tips

• Compare in the right order. Put the older version first and the newer version second. The added and removed counts only make sense when "before" and "after" are in the right boxes.
• Check numbers, not just words. Small numeric changes — a price, a date, a version number — are the easiest to miss by eye and the first thing a diff catches. Run a comparison before sending out any document with figures in it.
• Keep a copy of the report. Download the .txt report when the comparison matters, for example when you are reviewing a contract revision or handing off an edited file. It gives you a dated record of exactly what changed.

Frequently Asked Questions

Q: Is my text uploaded anywhere?

A: No. Editing and comparison run locally in your browser. Your text never leaves your device.

Q: Can I download the comparison?

A: Yes. You can download a readable .txt report of the differences, and there is also an optional unified .patch export for developer workflows.

Q: Does it replace a full diff tool or IDE?

A: No. It is a fast browser workspace for snippets, drafts, logs, and handoff files. For deep code review inside a project, a dedicated IDE or version-control diff is still the right tool.

Q: Do I need an account or to install anything?

A: No. The tool is free, works in your browser, and needs no signup.

Privacy Note

Text Compare runs 100% in your browser — your files and text never leave your device. There is no upload, no signup, and nothing stored on a server. That makes it a safe choice for comparing private drafts, work documents, and anything else you would rather not send to a website.