Compare Text

Spot every difference between two blocks of text, line by line.

Original

Changed

Both texts are compared in your browser — nothing is sent to a server.

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Compare Text — frequently asked questions

Does it compare word by word or line by line?+

Line by line, using a longest-common-subsequence diff — the same approach code review tools use.

Is there a size limit?+

It handles typical documents easily. Very large inputs (tens of thousands of lines) may be slow because the diff is computed in your browser.

Is my text uploaded?+

No. Both versions are compared locally and never sent anywhere.

Envoyez-vous mes fichiers sur un serveur ?+

Non — chaque outil ici traite vos fichiers entièrement sur votre appareil, et rien n'est envoyé à un serveur. La seule exception concerne les outils d'IA, qui envoient le texte extrait (pas le fichier) à Claude pour faire leur travail.

Y a-t-il une limite de taille de fichier ?+

Nous n'imposons aucune limite artificielle, mais comme le traitement se fait dans votre navigateur, les fichiers très volumineux (plus de 500 Mo ou 1000 pages) sont limités par la mémoire de votre appareil, pas par nous.