Email Address Validator

About this tool

Check whether an email address is syntactically valid according to standard formatting rules (local part, @, domain, TLD).

Example

Input: name@example.com

Output: Valid

Privacy

This tool runs entirely in your browser. Your data is processed locally and never uploaded to a server.

How to use this tool

1. Paste the email address you want to check into the input field.
2. Run the validator to inspect the address format.
3. Read the result to see whether the local part, @ symbol, domain, and TLD are structured correctly.
4. If it is invalid, fix the exact part that is malformed and test again.

Step by step, what happens

1. The tool reads the email string you enter and checks it against standard email syntax rules.
2. It separates the address into the local part before @ and the domain part after @.
3. It verifies that the address includes a single @ symbol and that the domain has a valid-looking hostname and top-level domain.
4. It returns an instant validity result with a clear explanation of what passed or failed.
5. If something is off, the message helps you spot whether the problem is missing punctuation, an extra symbol, or a bad domain format.

Worked example

Here is a simple example where a normal work email is checked for correct syntax.

Input: jane.doe@example.com

1. The tool sees a local part, jane.doe, followed by a single @ symbol.
2. It checks the domain example.com and confirms that it has a valid domain name and top-level domain.
3. Because the structure matches standard email formatting rules, the address is accepted as valid.

Tips and common mistakes

• Make sure there is only one @ symbol in the address.
• Check that the domain includes a real-looking top-level domain such as .com, .org, or .net.
• Do not include spaces, because even a small extra space can make an email syntactically invalid.
• If the tool says the address is invalid, compare each part of the string instead of only looking at the whole address.

Frequently asked questions