Formatter
IBAN Formatter
Format an IBAN into readable four-character groups. Normalize spaces and letter casing locally in your browser.
Tool
Format an IBAN into readable four-character groups. Normalize spaces and letter casing locally in your browser.
This tool runs in your browser. Your input is processed locally and is not uploaded.
About this Tool
Use this free IBAN Formatter to clean and standardize an International Bank Account Number. Paste an IBAN with or without spaces, normalize its letters and digits, and group the result into blocks of four characters for easier reading and transcription. The tool can also perform structural and checksum validation directly in your browser.
Examples
- DE89370400440532013000
- DE89 3704 0044 0532 0130 00
- GB82 WEST 1234 5698 7654 32
Frequently Asked Questions
How is an IBAN formatted?
For display, an IBAN is commonly written in groups of four characters separated by spaces. Electronic transfers usually use the compact form without spaces.
Does the formatter validate the IBAN?
It can verify the basic country length, allowed characters, and checksum when the country format is supported.
Does a valid checksum prove the bank account exists?
No. Checksum validation only confirms that the IBAN is structurally plausible. It does not confirm ownership, account status, or whether transfers are possible.
Is my IBAN uploaded?
No. IBAN formatting and validation run locally in your browser.