DOI Validator & Resolver
Validate and resolve Digital Object Identifiers (DOIs). Check if a DOI is valid and get links to the original article.
Single DOI Validation
Batch Validation
What is a DOI?
A Digital Object Identifier (DOI) is a persistent identifier used to uniquely identify academic articles, datasets, and other scholarly works. DOIs always start with “10.” followed by a registrant code and a suffix separated by a slash.
DOIs are required in APA 7th edition references and recommended in MLA and Chicago citations when available. They provide a permanent link to the source, even if the URL changes.
Related Tools
Frequently Asked Questions
- What is a DOI?
- A DOI (Digital Object Identifier) is a unique alphanumeric string assigned to a digital document such as a journal article, book chapter, or dataset. DOIs provide a permanent link to the content regardless of where it is hosted.
- How do I find the DOI for an article?
- DOIs are usually displayed on the first page of a journal article or on the article's webpage. You can also search for a DOI using CrossRef.org or by pasting the article title into Google Scholar.
- What does a valid DOI look like?
- A DOI starts with '10.' followed by a registrant code and a suffix, such as 10.1000/xyz123. When formatted as a URL, it becomes https://doi.org/10.1000/xyz123.
- Why is my DOI not resolving?
- A DOI may fail to resolve if it contains a typo, extra spaces, or trailing punctuation. Double-check the DOI against the original source and remove any surrounding characters.