Ask the person who wrote it.

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Find & Replace with Preview

Most questions are one of these. Full instructions are on the product page.

Replace changed a different number of things than the preview showed

It shouldn't, and the add-on now refuses to run when it can. If the search conditions, the selection, or the document changed after you pressed Find, you will see "This list doesn't match the conditions." — press Find again to rebuild the list, then replace. If you ever see a replace go through with a count that doesn't match the preview, that is a bug and worth reporting; see below.

The list stops at 300 rows

The preview list is capped at 300 rows so the panel stays responsive. The count above it is not capped — it is the true number of matches, and Replace all replaces all of them, not just the 300 shown.

Undo

A replace is a single undo step. Press Ctrl+Z (⌘+Z on a Mac) once in the document and the whole replace is reverted, however many matches it changed.

A regular expression behaves differently than expected

Search patterns run on Google's own regex engine, which is a subset of what you may be used to. Two limits are worth knowing up front, because they are the platform's and cannot be worked around:

• Backreferences in the replacement ($1, \1) are not supported. Capture groups match, but you cannot reuse them in the replacement text.
• Lookahead and lookbehind are not supported.

Converting between line-break types

Converting a soft line break to a paragraph break (or the reverse) is not possible. The platform turns a soft return into a plain space before an add-on can see it, so no add-on can do this — it is not a missing feature on our side.

Page layout

Columns, page numbers, margins and section breaks are outside what add-ons can touch. This add-on works on text and its formatting only.

Licences

• A licence covers up to 3 Google accounts. Sign in with a licensed account and the paid features are available in any document.
• Moving to a different account: use Release licence in the add-on's settings on the old account, then enter the key on the new one.
• Lost your key? Mail us from the address you bought with and we will resend it.
• Refunds are handled within 14 days of purchase — see Terms of Service, section 3.

Reporting a bug

A report that includes these is usually fixed in one round instead of four:

• What you typed in Find, exactly, and which options were ticked (match case / regular expression / ignore whitespace).
• The search scope you chose.
• What you expected, and what happened instead.
• If a count looked wrong: the number the add-on showed, and the number Google's own Edit → Find and replace shows for the same text.

Please do not send your document. We do not want it and cannot accept it — the add-on is built so that no document content ever reaches us, and that is not a promise we intend to put an exception into. A short made-up example that reproduces the problem is more useful anyway.

Removing the add-on

Uninstall it from the Google Workspace Marketplace, or revoke its access at myaccount.google.com/permissions. Removing it deletes the saved searches stored in your Google account. Nothing is stored anywhere else — see the Privacy Policy.

Feature requests

Welcome, and they are read. These are small tools built to do one job well, so the usual answer to "could it also…" is no — but the requests decide what the next one job is.