100% Client-Side Privacy Normalizer

Wedding Guest List CSV Spreadsheet Formatter & Duplicate Cleaner

Clean, format, and standardize your wedding guest list spreadsheet. Split names, detect duplicate guests, validate mailing addresses, normalize RSVP statuses, and export clean CSVs client-side.

Spreadsheet Audit: 2 duplicate entries and 2 rows missing address/meals flagged below.
#First NameLast NameHouseholdMailing AddressRSVPMeal ChoiceTableDelete
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Showing 6 rows. Cleaned CSV download contains normalized proper case names and envelope headers.

Overview & Practical Value

What This Tool Does

This tool repairs messy wedding guest list spreadsheets. Whether your contacts came from wedding websites, family emails, or handwritten notes, it auto-detects columns, splits combined names, standardizes addresses for envelope printing, flags duplicates, and exports a clean CSV.

Step-by-Step Guide

How to Use This Guest List Formatter

1

Upload your existing CSV file or copy-paste rows directly from Excel or Google Sheets.

2

Verify auto-mapped columns (First Name, Last Name, Address, RSVP Status, Meal Choice).

3

Review duplicate alerts and clean up any repeated guest entries.

4

Check the Missing Data alert to identify guests who still need mailing addresses or meal choices.

5

Edit individual cells directly in the interactive data preview table.

6

Click "Export Clean CSV" to download a standardized, envelope-printing-ready spreadsheet.

Calculation Methodology

Spreadsheet Hygiene & Validation Score

Scores list completeness based on required envelope fields (Name, Mailing Address, ZIP code) and final catering fields (RSVP status and meal choice).

HygieneScore = (ValidCompleteRows / TotalGuestRows) * 100
Industry Standards & Assumptions

Planning Assumptions Used in This Model

Each row represents an individual guest or a distinct household unit with a plus-one.
Address standardization follows postal formatting (Street, City, State, ZIP code).
Processing is executed strictly in local browser memory; no guest contact data is sent to external servers.
Practical Example

Standard Normalized Guest List Schema

Ideal column structure for calligraphers, printers, and seating software.

First NameLast NameHousehold / GroupAddressRSVP StatusMeal SelectionTable #
SarahJenkinsJenkins Household124 Maple Ave, Austin, TX 78701AttendingFilet MignonTable 4
DavidJenkinsJenkins Household124 Maple Ave, Austin, TX 78701AttendingAtlantic SalmonTable 4
MichaelChangChang Household842 Oak St, Denver, CO 80203AttendingVegetarian RisottoTable 7
EmilyRostovaRostova Party310 Pine St, Seattle, WA 98101DeclinedNoneUnassigned

Note: Separating First and Last Name columns makes sorting and place card printing significantly easier.

Photo Sharing

Connect Your Guest List to a Shared Wedding Album

WedShare lets your entire guest list upload their photos and videos into one shared album with a single QR code scan. No account creation needed for guests.

Create Your WedShare Album →
Frequently Asked Questions

Common Questions About Guest List Formatter

Is my guest list private when using this online formatter?

Yes, 100%! All spreadsheet parsing and formatting happens directly in your browser using JavaScript and HTML5 APIs. Zero guest information is transmitted over the internet or saved to our servers.

Can this tool split full names into first and last names?

Yes! If your spreadsheet has a single column with "John & Mary Smith" or "John Smith", the formatter can split them into individual first and last name columns for place cards and invitations.

What file formats can I import and export?

You can upload .csv files, paste text directly from Microsoft Excel or Google Sheets, and export your cleaned list as a standard .csv compatible with all major wedding websites and printing companies.

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