Text Compare
Compare two texts and find the differences line by line.
What is Text Compare?
Text Compare (also known as Diff Tool) is a comparison utility that takes two blocks of text and highlights the differences between them line by line, or word by word. Added content appears in one color (typically green), removed content in another (typically red), and unchanged content remains neutral. This "diff" view makes it immediately obvious what changed between two versions of a text.
Version control systems like Git use diff algorithms internally to track every change made to code files between commits. The web-based Text Compare tool brings this same power to anyone who needs to compare document versions, catch unauthorized edits, review changes before merging, or identify what was modified between two copies of a file — without needing a code editor or version control system.
Writers, editors, legal professionals, teachers, developers, and system administrators all regularly need to compare text versions. A legal editor comparing two contract drafts, a teacher checking a student's revised essay against the original submission, or a developer reviewing manually applied patch changes all benefit from a visual diff that makes differences unmistakably clear.
How to Use Text Compare
- 1Step 1: Open the Text Compare tool. You will see two input panels side by side — one labeled 'Original' or 'Text A' and one labeled 'Modified' or 'Text B'.
- 2Step 2: Paste the first (original) version of your text into the left panel and the second (modified) version into the right panel.
- 3Step 3: Click Compare. The tool runs a diff algorithm and produces a highlighted view showing which lines or words were added, removed, or changed.
- 4Step 4: Review the color-coded output: green highlights (or additions marker) show new content; red highlights show removed content; yellow or orange may indicate modified lines.
- 5Step 5: Use the results to understand exactly what changed — approve, reject, or incorporate specific changes into your final version based on the diff output.
Benefits of Using Text Compare
- ✓Visual Difference Highlighting: Color-coded diffs make differences instantly visible at a glance, eliminating the need to read both texts in full to spot changes.
- ✓Line and Word Level Comparison: Supports both line-by-line and word-by-word comparison modes, letting you zoom into the exact characters that changed within a line.
- ✓Contract and Document Review: Legal professionals and editors use diff tools to verify that only intended changes were made between document drafts and no unauthorized edits crept in.
- ✓Academic Integrity Checking: Teachers compare student submission versions to detect whether revisions genuinely addressed feedback or content was simply rearranged.
- ✓Code Review Without Git: Developers compare manually edited files that are not under version control, seeing exactly what changed before deciding whether to keep the modifications.
- ✓Content Merge Support: When two people edit the same document separately, the diff view helps identify conflicting changes so they can be intelligently merged.
Example
About Text Compare
Text Compare performs a line-by-line diff between two blocks of text, highlighting additions, deletions, and unchanged lines. It's ideal for proofreading, reviewing edits, and comparing document versions. The visual diff output makes differences immediately obvious.
- Line-by-line diff comparison
- Color-coded additions and deletions
- Handles any length text
- Side-by-side or unified view