Private preflight: this check runs entirely in your browser and does not upload your file.
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File readiness

Catch input problems before a model run.

Inspect file structure, gene coverage, duplicates, missing values, identifiers, and numeric ranges. Your file never leaves this page during the check.

Browser-localNo account requiredNo file retained
01 · Choose input

Check a profile

Gene-expression values only

Do not choose or paste a file containing names, patient or sample identifiers, medical record numbers, dates of birth, contact details, clinical notes, or PHI. This browser-local screen can flag some identifier-style fields, but it does not certify de-identification under HIPAA or any other law.

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Drop an expression file here

CSV, TSV, TXT, or JSON · up to 8 MB

Expected: one gene and one numeric expression value per row, or a JSON object of gene-to-value pairs. The preferred validated input is a tumor profile aligned to the GDC reference using STAR-Counts FPKM-UQ.