Get your address right the first time

Paste in the details. Pick a country. Instantly see a correctly formatted, printable address that follows postal authority rules.

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Include apartment or suite number on this line.

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    Envelope preview

    Return: Your Name, 100 Main St, Your City, ST 00000

    Your formatted address will appear here.

    What a correct address looks like

    Each country has its own line order and abbreviation rules. Here are real-world examples formatted the right way.

    United States (USPS)

    Jane Doe
    742 Evergreen Terrace Apt 2B
    Springfield IL 62704
    UNITED STATES
    • State abbreviated to two letters (IL, not Illinois)
    • ZIP code on the same line as city and state
    • Country in ALL CAPS on the last line

    United Kingdom (Royal Mail)

    Mr J Smith
    10 Downing Street
    Westminster
    London SW1A 2AA
    UNITED KINGDOM
    • Post town (London) in CAPS on its own line
    • Postcode on its own line after the town
    • County is optional for major cities

    Canada (Canada Post)

    Jean Tremblay
    432 Rue de la Gare
    Montréal QC H3C 4R1
    CANADA
    • Province abbreviated to two letters (QC, not Québec)
    • Postal code format: A1A 1A1 (letter-digit-letter digit-letter-digit)
    • French addresses work the same way

    Australia (Australia Post)

    Sam Nguyen
    15 George Street
    Sydney NSW 2000
    AUSTRALIA
    • State abbreviated (NSW, VIC, QLD, etc.)
    • Four-digit postcode after the state
    • Suburb name is required, not optional

    Japan (Japan Post)

    〒100-8111
    東京都千代田区千代田１−１
    JAPAN
    • Postal code first with the 〒 symbol
    • Prefecture, then city, then street (largest to smallest)
    • Names go last in Japanese format

    Mistakes that cause mail to bounce

    These are the errors we see most often. Check your address against this list before you seal the envelope.

    Wrong line order

    Putting the postal code before the city, or the country in the middle of the address. Each postal service expects lines in a specific sequence.

    Unabbreviated states or provinces

    Writing "California" instead of "CA" or "Ontario" instead of "ON". USPS and Canada Post prefer the two-letter codes.

    Invalid postal code format

    Using a five-digit ZIP for Canada (needs A1A 1A1) or forgetting the space in a UK postcode. The tool flags these for you.

    Missing apartment or unit numbers

    Mail for unit buildings gets returned when the suite or flat number is left off. Always include it on the street line.

    Writing the country in lowercase

    International mail processing machines expect the destination country in capital letters on the last line.

    Using commas between every line

    Commas are fine within a line, but adding one after the last item on a line can confuse automated sorting equipment.

    How to use this

    1. Pick the destination country from the dropdown. The formatter will switch to that country's rules.
    2. Fill in the address fields. Use the full name on the first line. Put apartment or suite numbers on the street line.
    3. Check the preview. The envelope preview updates as you type. If the postal code looks wrong, a warning appears.
    4. Save or print. Click "Save Recipient" to store the address in your browser. Click "Print Envelope" for a clean, print-ready page.
    5. Share a link. Click "Share Link" to copy a URL with the address encoded. Send it to anyone who needs to print the same address.

    Before you send

    • Double-check the postal code against an official lookup if you are unsure.
    • For UK addresses, write the post town in capital letters.
    • For Japanese addresses, write from largest area (prefecture) to smallest (building number).
    • This tool formats addresses. It does not verify that an address exists.

    Questions people ask

    Which countries are supported?
    United States (USPS), United Kingdom (Royal Mail), Canada (Canada Post), Australia (Australia Post), and Japan (Japan Post). More can be added based on user requests.
    Does this verify that an address actually exists?
    No. It formats and validates the structure of postal codes, but it does not check whether a specific street address is real. Use your postal service's official address verification for that.
    Can I save addresses for later?
    Yes. Click "Save Recipient" and the address is stored in your browser. It stays there until you clear it or clear your browser data. Nothing is sent to a server.
    Why does the address order change by country?
    Each postal authority sorts mail differently. In the US, the city and state come before the ZIP code on one line. In Japan, the postal code comes first and the prefecture comes before the city. Getting this wrong can delay or misroute your mail.
    Is my data private?
    Everything runs in your browser. No address data is sent anywhere. Saved recipients stay in localStorage on your device only.
    Can I use this for return addresses too?
    The return address line at the top of the envelope preview is a placeholder. Replace it with your own name and address, or use a self-inking stamp to save time.