Examples & live data
A public, browsable corpus of real mzPeak files — converted from open datasets across vendors, instruments, and modalities — is hosted for anyone to explore.
Browse the corpus
- Example data index ↗ — hundreds of
.mzpeakfiles alongside their originals, organized by type:- Imaging MS (MSI) — imzML datasets with per-pixel spatial coordinates + optical images
- Mass spectrometry — LC-/GC-MS across six vendors and every major analyzer class
- SDRF / ISA sample metadata — studies shipping their sample-annotation alongside the data
- ProteoWizard corpus — the vendor-reader conformance set
Every .mzpeak opens directly in a browser viewer over HTTP range requests — no download.
Open one in a viewer
From the index, click ▶ Explorer on any file (or ▦ mzPeakIV for imaging datasets). Both viewers stream the file in place.
Try it right here
The viewer below is mzPeak Explorer, running entirely in your browser. Click Open demo to load a real run, or drop any .mzpeak file from the corpus onto it — the file is read in place over HTTP range requests and never leaves your machine.
Open a real dataset in a full window ↗
Why it's compact
Across the benchmark corpus, mzPeak files are consistently a fraction of the source mzML size (roughly 0.1–0.6×), losslessly — the payoff of columnar Parquet storage. See the per-instrument numbers on the home page.
A worked imaging example
The mouse urinary-bladder MS-imaging dataset reconstructs tissue anatomy label-free from lipid ion images. Loaded in mzPeakIV and assigned to RGB channels, three masses separate the bladder-wall layers — urothelium, lamina propria, and muscle — straight from an mzPeak file in the browser.