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ISBN-10 and ISBN-13 checker

Validate book identifiers and convert valid ISBN-10 to ISBN-13.

Free

Validate book identifiers and convert valid ISBN-10 to ISBN-13. Check the supported ISBN checksum and convert a valid ISBN-10 into a 978-prefixed ISBN-13. Spaces and hyphens are removed, and an ISBN-10 final X is accepted.

◈ Local processingFree

How to use

  1. Enter your text, values, or image.
  2. Adjust the options and run the tool.
  3. Copy or download your result.

Worked example

Example input

Input: 0-306-40615-2

Example result

{
  "type": "ISBN-10",
  "valid": true,
  "isbn13": "9780306406157"
}

Limitations and details

Checksum validity does not prove an identifier was assigned to a published book; no bibliographic database is queried.

Inputs and options

Input
Text

Frequently asked questions

Is this tool free and private?

Yes. All 300 tools are free in this phase. Processing happens in your browser; your input and files are not sent to our servers.

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