# Email Normalizer Guide

Normalize email addresses to a canonical form.

- Tool: https://ilham.dev/tools/email-normalizer/
- Guide URL: https://ilham.dev/guides/email-normalizer/
- Tool guides index: https://ilham.dev/guides/tools/
- Broader guide: Email Debugging (https://ilham.dev/guides/email-debugging/)

## What it does

Normalise an email address to a canonical form: lowercase the domain, strip a +tag from the local part, and remove dots for providers where they are ignored. Useful for deduplicating a mailing list.

## Use the tool

Open https://ilham.dev/tools/email-normalizer/, add the input the tool asks for, run it, and check the output before using it elsewhere.

## Input and output

- Input: text.
- Output: text.
- Category: Data.

## Privacy and processing
Processing happens locally in your browser. This tool does not upload the input to ilham.dev.

## Questions

### Is removing dots always safe?

No. Dots are only ignorable at specific providers — Gmail and a few others. At most providers first.last and firstlast are genuinely different mailboxes, so only apply this when you know the domain.