Loading...
Loading...
Free online email address normalizer tool. Clean and normalize email addresses by removing aliases, plus addressing, and formatting inconsistencies.
Gmail ignores dots and +aliases: [email protected] = [email protected]
Normalizes email addresses by applying common cleanup rules: converting to lowercase, stripping dots (for Gmail-style services), removing +aliases, and trimming whitespace. Supports batch processing of multiple emails and deduplication to find unique addresses from a list.
Many email providers (especially Gmail) treat variations of the same address as identical. This makes it difficult to compare, deduplicate, or validate email lists. This tool normalizes all variants to their canonical form for accurate comparison.
Marketing teams managing email lists, developers validating user registration data, system administrators cleaning up mailing lists, and anyone who needs to compare or deduplicate email addresses.
Paste email addresses into the textarea, one per line
Toggle normalization options: lowercase, strip dots, strip +aliases, trim whitespace
Click "Normalize" to process all emails with the selected options
Click "Deduplicate" to remove emails that normalize to the same address
Click "Copy All" to copy the normalized emails to your clipboard
Input: [email protected], [email protected] -> Both normalize to: [email protected]Input: [email protected], [email protected] -> With lowercase: [email protected] (deduplicated)[email protected], [email protected], and [email protected] all deliver to the same inbox.
this tool normalizes format, not validity. Use an email validator for format checking.
Free online word counter and text analyzer tool. Count words, characters, sentences, and analyze readability with Flesch reading ease scores.
Free online regex tester and debugger with real-time matching, capture groups, and extended flag support. Test and debug regular expressions easily.
Free online Markdown preview editor with live syntax highlighting. Write and preview Markdown documents in real-time with formatted output.
Free online IP address calculator and subnet tool. Calculate subnet masks, CIDR notation, host ranges, and network addresses for IPv4.
Free online JSON formatter and validator with syntax highlighting. Beautify, validate, and minify JSON data instantly with real-time error detection.
Free online Base64 encoder and decoder tool for developers. Instantly convert text and files to Base64 format and decode Base64 strings back to readable text.
Free online JWT decoder and analyzer for developers. Inspect JSON Web Token headers, payloads, and signatures with detailed breakdown and validation.
Dive deeper with our comprehensive guides and tutorials.