checkCIF is
sponsored by

[IUCr Journals]

[Cambridge Crystallographic Data Centre]

[American Chemical Society]




[Royal Society of Chemistry]

[Chemical Society of Japan]

A service of the
International Union of Crystallography

checkCIF reports on the consistency and integrity of crystal structure determinations reported in CIF format.

Please upload your CIF using the form below. [Help]

File name:

Select form of checkCIF report
PDF (recommended for CIFs that might take a long time to check)

Select validation type
Full validation of CIF and structure factors
Validation of CIF only (no structure factors)

Output Validation Response Form
Level A alerts only
Level A and B alerts
Level A, B and C alerts

This version of checkCIF includes checks on:

 • CIF syntax and construction
 • Cell and geometry details
 • Space-group symmetry
 • Anisotropic displacement parameters
 • Structure factors

Useful links

Prepublication check for submissions to IUCr journals
Details of checkCIF/PLATON tests
CIF dictionary
Download CIF editor (publCIF) from the IUCr
Download CIF editor (enCIFer) from the CCDC

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