All Tools
7 free tools for cleaning and validating data. Deduplicate leads, filter rows by word bank, map columns, sanitize CSVs, validate emails, and extract domains. Free Clay alternative — your data never leaves your browser.
Clean messy CSV data: fix formatting, capitalize names, clean phone numbers, trim whitespace, remove empty rows and duplicates.
Data ToolsFind and remove duplicate rows. Smart normalization catches case differences, phone formats, and spacing issues.
Data ToolsAll-in-one lead list cleanup: validate emails, format names, normalize phones, remove duplicates, flag missing data.
Data ToolsRename, reorder, split, and merge CSV columns visually. Map data to match any CRM import format.
Data ToolsFilter CSV rows by a word bank. Highlight, remove, or keep only matching rows. Clean lists fast.
Data ToolsValidate emails in bulk. Check syntax, detect disposable domains, flag role-based addresses, find duplicates. Get a health score.
Data ToolsExtract unique company domains from email lists. Filter free providers. Build account lists from contact lists.
Free data cleaning tools for sales ops, growth teams, and marketers. Clean CSV files before CRM imports, validate email lists to protect sender reputation, and extract company domains for account-based marketing. All processing happens in your browser — your lead lists, customer data, and contact information never leave your device. A free alternative to the data cleaning features in Clay ($134/mo) and Apollo ($49/mo).
Dirty data causes bounced emails (hurting sender reputation), duplicate records, embarrassing personalization errors ("Dear JOHN SMITH"), and wasted outreach. Cleaning first saves time and money. These tools handle the most common issues: formatting, duplicates, invalid emails, and disposable addresses.