Goodlookup

Goodlookup is a Google Sheets add-on that replaces rigid formulas like VLOOKUP or INDEX/MATCH with a fuzzy, natural-language lookup. Instead of requiring an exact character match between two columns, it uses a language model to understand semantic relationships, so it can match a name like "Ronaldo" to a full name such as "Ronaldo Luís Nazário de Lima," or to a related term like "Soccer," and return a similarity score for each match. This targets a common spreadsheet problem: joining data from different sources that don't use identical naming conventions, such as merging customer lists, product catalogs, or CRM exports where spelling and formatting vary. Because it works inside Google Sheets via the Extensions menu, no separate app or import step is needed — users add it from the Google Workspace Marketplace and call it like any other spreadsheet function. Goodlookup is priced at $15 per year, which is inexpensive for a language-model-backed tool, though that likely implies usage limits. The add-on's marketing page doesn't disclose the company behind it, a founding year, or whether a broader API exists beyond the Sheets add-on itself.