DreaMS Search

Search 200M+ MS/MS spectra by DreaMS similarity.

A free web application built on the DreaMS deep-learning model (Bushuiev et al., Nature Biotechnology 2025). See the docs for more details.

Upload MS/MS file

Bring one MS/MS file or pick an example; every spectrum in it is searched on its own.

Drop your MS/MS file here

or click to browse

.mgf.mzML.mzXML.xml

max 100 MB

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Choose a combination of reference MS/MS libraries and datasets to search.

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Optional: choose which hits are kept, by a minimum similarity and by exact or analog match.

Upload a file or pick an example to start.