DOI Validator
ValidatorValidate Digital Object Identifier (DOI) format and resolve it via doi.org. Format validation runs entirely in your browser.
About this tool
About DOI Validator
A DOI (Digital Object Identifier) is a persistent identifier in the form 10.PREFIX/SUFFIX, used to permanently identify a digital object — most commonly a journal article, dataset, or other scholarly work — regardless of where it's hosted. The prefix (always starting with '10.') is assigned to a publisher or organization, and the suffix is chosen by that publisher. Like ISRC, the DOI is a format-only identifier with no check digit.
The validator strips a leading https://doi.org/ or dx.doi.org/ if present, verifies the format against the official DOI syntax (a '10.' prefix, 4-9 digits, a slash, then a suffix of letters, digits, and a defined set of punctuation), and decodes the prefix and suffix. A one-click button resolves the DOI by opening it at doi.org.
Use this to verify a DOI copied from a citation, reference manager, or publisher's website before using it in a bibliography or metadata system, to quickly resolve a DOI to its target page, or to debug why a DOI is being rejected by a validation layer.
Instant, fully client-side format validation with no data ever leaving your browser until you choose to resolve it. Note this checks structural validity only — it does not confirm the DOI is actually registered, which the resolve button lets you check directly against doi.org.
Key Features
- Validates the official DOI syntax (prefix + suffix)
- Automatically strips a doi.org/ URL prefix if pasted
- Decodes the publisher prefix and suffix
- One-click resolve button linking to doi.org
- 100% browser-based — resolving is the only action that leaves your browser
FAQ
DOI Validator — Frequently Asked Questions
What is a DOI?
DOI stands for Digital Object Identifier, a persistent identifier used to permanently link to a digital object — most commonly a journal article, dataset, or conference paper — even if the object's web address changes over time. A DOI always resolves through the doi.org resolver to the object's current location.
What does the prefix and suffix of a DOI mean?
The prefix (always starting with '10.', followed by 4-9 digits) is assigned by the DOI Foundation to a specific publisher or organization. The suffix, after the slash, is chosen by that publisher and can be almost any combination of letters, digits, and certain punctuation — often the article's own internal ID.
Does a DOI have a check digit?
No. A DOI is a format-only identifier — there's no built-in checksum. This validator checks that the syntax matches the official DOI specification, but it can't independently confirm the DOI actually resolves to a real object without contacting doi.org.
Can I paste a doi.org URL directly?
Yes. This validator automatically strips a leading https://doi.org/ or https://dx.doi.org/ if you paste the full URL, so you don't need to extract the raw DOI first.
What does the 'Resolve' button do?
It opens https://doi.org/ followed by your DOI in a new tab, which is the official DOI resolution service — it will redirect you to wherever the publisher has registered the object to live. This is the only part of this tool that leaves your browser; the format validation itself happens entirely locally.
Tips
- You can paste either the raw DOI (10.1000/182) or a full doi.org URL — both are accepted
- Since there's no check digit, a structurally valid DOI isn't guaranteed to actually resolve to a live object
- Use the Resolve button to confirm a DOI is live and see where it points, without leaving this page
- Format validation happens entirely in your browser — only clicking Resolve makes an outbound request
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