Barcode Normalizer
Paste values and we strip spaces, invisible characters and separators, then let you download the cleaned list.
How to use in 3 steps
- 1
Paste the values
Enter barcode values to clean, one per line, or upload a file.
- 2
Choose cleaning rules
Enable removing spaces, dashes, invisible characters and full-width → ASCII conversion.
- 3
Download the result
Copy the cleaned, consistent list or export it as CSV.
Example input / output
Input
" 8690000000017 " (leading/trailing spaces + invisible char)
Output
8690000000017
Technical notes
Barcode values copied from Excel, email or the web often carry invisible problems: leading/trailing spaces, tab characters, zero-width spaces or non-breaking spaces. This tool detects and removes them so values match as expected.
Full-width digits often come from East Asian keyboards or certain copy operations; although they look like normal digits, they are different Unicode characters and fail validation. The tool converts them to standard ASCII digits.
Separators like dashes, spaces and dots may be added for human readability but are noise for systems; cleaning optionally removes them, leaving the pure barcode value. This greatly reduces import and matching errors.
The cleaned list can be sent to the barcode duplicate finder to find clashes more reliably, or to the GTIN validator for validation. All processing runs in your browser; your data is never sent to a server.
Frequently asked questions
Characters like zero-width space or non-breaking space are invisible on screen but part of the value, so a value that should match '8690000000017' silently doesn't.