Compare two texts side by side and see what changed. EverydayKit’s free text diff highlights additions and deletions by line or word—ideal for editing drafts, reviewing copy, and spotting small typos without uploading files.
Frequently asked questions
How does text diff work?
Paste original and modified text. The tool computes a difference and colors inserts and deletes. Switch between line and word modes for coarser or finer detail.
Is my text uploaded?
No. Comparison runs entirely in your browser. We never send your content to a server.
When should I use line vs word mode?
Line mode is best for paragraphs and code-like blocks. Word mode is better when sentences stay mostly the same but individual words change.
Can I diff large documents?
Yes for typical drafts. Extremely large texts may feel slower because the algorithm runs in the browser; try shorter sections if needed.
Does it support all languages?
Yes—any Unicode text works. Diffing is based on characters and tokens, not a specific language model.