Free caption diff checker

A decision belongs to the wording the client saw. Changes to a price, offer, date, link, name or claim should be easy to spot before the revised caption is approved. Even a small edit can change the meaning. This checker highlights text changes; you decide their significance with your reviewer.

PostRoom automatically clears approval when saved caption text changes. The client reviews the new version using a review link, without creating an account. It handles caption text, not image or video proofing.

Try the approval-reset demo or create a free review room (one room, ten stored drafts, no card).

Words, punctuation and spacing are compared exactly. Deleted text is marked in red and added text in green, with explicit labels. The tool does not judge factual accuracy, legal compliance, tone or whether something is ready to publish. Equal text means the supplied strings match; it does not prove a prior approval.

Your captions stay in this page’s memory. They are not sent to a server or saved. Refreshing clears them. Copying puts your brief on your device’s clipboard. The sample is fictional.