Phone Number Sanitizer

✅ Fixes the common problems automatically - Adds the country code to 10-digit numbers (e.g. 9876543210 → 919876543210) - Strips +, leading 0, 00 international prefixes, spaces, dashes and brackets - Cleans stray backticks/apostrophes left over from Excel - Fixes numbers mangled into scientific notation (9.87654321E+9) 🚩 Flags what it can't safely fix - Wrong digit count (too short or too long) - Invalid starting digits (configurable) - Fake / all-identical numbers like 9999999999 - Empty cells and text values - Duplicates — detected after normalization,3210 are correctly caught as the same number 📊 What you get back - Clean .xlsx workbook — sanitized sheet(s), an Errors sheet, and a Summary sheet - Clean .csv — campaign-ready numbers only - Errors .csv — flagged rows to send back for correction - On-screen stats (valid / fixed / invalid / preview before you download ⚙️ Fully configurable - Set your country code, number length, and valid starting digits - Toggle each cleanup rule on or off - Choose which columns appear in the output - Split large lists into multiple sheets (de - Settings sync automatically across your Chrome profile 🔒 Private by design Everything runs locally in your browser. No uploads, no servers. Optional anonymous usage analytics (counts and settings only — never phone numbers, cell values, or file names) can be turned off anytime in Settings.