Absolutely. CleanCrumbs processes every file entirely inside your browser using a Web Worker. Your data is never uploaded to any server — this is structurally enforced by the Content Security Policy (CSP), which blocks all outbound data connections.
You can verify this yourself using your browser's DevTools Network tab.
Standard Clean sanitizes names (casing), emails (syntax, typos), phone numbers (E.164 formatting), and addresses (state/province normalisation). It also detects and merges duplicates.
HubSpot Readiness (Pro) runs the standard clean plus validates HubSpot-specific fields: lifecycle_stage, hubspot_owner_id, company_domain_name, and E.164 phone format.
Salesforce NPSP (Pro) runs the standard clean plus validates Salesforce Nonprofit Success Pack fields: Last Name, record_type, donation amounts, and household mailing addresses.
CleanCrumbs supports CSV (.csv) and Excel (.xlsx) files. After processing, you can export cleaned data as CSV, XLSX, or a plain-text summary report.
Yes. CleanCrumbs is a Progressive Web App (PWA) that works offline after your first visit. All processing happens locally — no internet connection is needed to sanitize files. The Pro plan includes a 30-day offline grace period.
Pro gives you: unlimited rows per month (signed-in free tier: 30,000/month), files up to 500 MB (free tier: 10 MB), HubSpot Readiness and Salesforce NPSP scans, priority support, and a 30-day money-back guarantee. It's a one-time $29 USD purchase with no recurring fees.
We offer a 30-day no-questions-asked refund. After 30 days, refunds are available for major failures under Australian Consumer Law. See our Refund Policy for details.
CleanCrumbs has two free tiers. Without an account, you can process files up to 3,000 rows each — unlimited files, no monthly cap. Sign up for a free account to unlock 30,000 rows per calendar month (10× more). The monthly quota resets on the 1st of each month. Files up to 10 MB are supported in both free tiers. HubSpot and Salesforce scans require Pro.
CleanCrumbs exports cleaned data as CSV or XLSX, which are the universal import formats for virtually every CRM — including HubSpot, Salesforce, Zoho, Pipedrive, and Microsoft Dynamics. The HubSpot Readiness and Salesforce NPSP scans (Pro) validate CRM-specific fields before you import.
No. All processing is rule-based and runs entirely inside your browser — no AI models, no cloud calls, no external APIs are involved in sanitizing your data.
Column detection uses regex intent matching, phone parsing uses the open-source libphonenumber-js library, and email validation uses pattern rules and a known-domain typo list. This keeps processing fast, private, and fully offline-capable.
No. CleanCrumbs uses intent-based column detection — any header containing a recognised keyword is matched, regardless of casing, separators, or surrounding words. For example:
Work Email, email_address, CONTACT_EMAILContact First Name, FIRST_NAME, given namePhone Number, mobile_phone, Work TelMailing State, billing_state, State/ProvinceColumns that contain none of the recognised keywords are passed through unchanged.