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Compare two texts and see the differences highlighted instantly: by word, by line or character by character.
Your texts never leave the browser: the comparison runs on your device and nothing is sent to any server, which makes it ideal for reviewing contracts, quotes, legal clauses or any sensitive document. Before pasting a contract into the first site a search engine returns, it's worth asking where that text ends up and who gets to read it; here the answer is simple: nowhere, and nobody. Spot in seconds what changed between two versions before signing off.
Pick the granularity that fits best: word for regular prose, line for code, listings or CSV files, and character for short strings such as references or account numbers. You can also ignore letter case and whitespace to focus only on content changes.
Based on the open source jsdiff project.
The comparison happens only in your browser. Gestycontrol never receives or stores your texts.
Warning: one of the texts exceeds 200,000 characters; the comparison may take a few seconds or slow down the browser.
Type or paste both texts to see the differences.
Additions are shown in green and deletions in red strikethrough. "Copy result" gives you the text with [+added+] and [-removed-] markers.