KLAVIYO IMPORT FIXER · FREE BETA

Make your contact file
ready for Klaviyo.

Find import blockers, repair safe formatting issues, infer Klaviyo property types, and export clean files without uploading your contact data.

Your contact data stays on your device. CSV and XLSX parsing happens inside this page.

Drop your CSV or XLSX here

or choose a file · Klaviyo limit: 50 MB

CSV · XLSX · processed locally

Import-ready rows00%

Blocking rows0moved to rejected export

Safe fixes applied0no consent guessed

Warnings0review recommended

DIAGNOSTICS

What ReadyRows found

KLAVIYO MAPPING PLAN

Suggested property types

Use this as a guide on Klaviyo’s import mapping screen. ReadyRows infers custom-property types from column names and sampled values, but leaves ambiguous data as Text.

Source column	Map to	Type	Confidence	Why

PREVIEW

Clean output preview

EXPORT

Files generated locally

The import-ready CSV excludes only rows with unresolved blockers. The mapping guide tells you what to select in Klaviyo.

Free beta · all exports are unlocked while we validate real-world demand.

CSV + XLSX inputXLSX is decoded locally and converted to Klaviyo-ready CSV output.

Safer phone cleanupInternational prefixes and punctuation are normalized without guessing missing country information.