Changing affiliate accounts, moving a site to a new owner, or fixing a wrong ID typed months ago all leave the same mess: the old ID sits inside dozens of links across posts, emails and documents. Editing each link by hand is slow and easy to get wrong. This tool does the whole block at once. Paste your text or links, type the old affiliate ID and the new one, and it replaces every occurrence, then tells you exactly how many replacements it made so you can check the count against what you expected.
How the swap works
The tool treats your old ID as plain literal text, not as a pattern, so characters like dashes and dots in the ID are matched exactly and cannot accidentally match something else. Every occurrence in the pasted text is replaced, including IDs inside long URLs, inside tag= parameters and inside plain text. The result appears in the output box ready to copy, and the original text stays untouched in the input box, so you can compare the two before you publish anything.
When to strip instead of swap
Leave the new ID box empty and the tool removes the old ID entirely, which is the right move when you are cleaning links before handing content to someone else, or when an old account is closed and its links should carry no ID at all. Note that removing an ID from a URL can leave an empty parameter such as tag= behind; check the cleaned links once, and use the Amazon link cleaner on this site for Amazon links, since it rebuilds the whole address rather than editing it in place.
Getting the count right
The replacement count is your safety check. If you expected forty links to change and the tool reports forty, you are done. If it reports zero, the old ID was typed differently in the text, perhaps with different capital letters, because matching is case-sensitive on purpose: affiliate IDs are case-sensitive on most networks, so a case-insensitive swap could corrupt IDs that only look similar. If it reports more than you expected, the old ID string may also appear inside other words, and you should review the output before publishing.
Limits
The tool only edits text you paste. It cannot reach into your website, your email account or a document on your computer and change links there; you paste the content in, copy the result out, and save it where it belongs. Everything runs in your browser and nothing you paste is uploaded or stored.
Auditing after the swap
A bulk swap feels done when the count looks right, but a short audit prevents quiet losses. First, open three or four swapped links and confirm they land on the right product with the new ID visible in the address. Second, search your content for the old ID once more, because the same ID often hides in places you did not paste: image file names, downloadable PDFs, email templates and social media bios are common hiding spots, and this tool can only edit text you give it. Third, check whether the old ID appears in shortened links, since a short link wraps the original address and swapping the visible text will not change what the short link points to; those need to be rebuilt at the shortener. Fourth, keep a copy of the original text until the new links have earned at least one commission, so you can prove which ID was live on which date if a network ever disputes a sale. Networks occasionally take days to show new-ID clicks, so a quiet first day is normal and not proof the swap failed.
Related tools
Amazon Link Cleaner · UTM Link Builder · Versión en español: Intercambiador de ID de Afiliado · All Free Online Tools.
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