Annotator

Annotator 1.2.1

Discover the depths of your spectra one spectrum at a time

  • By snijderlab
  • Open Source
  • Updated Sep 1, 2025
Download for Windows

About Annotator

A simple tool to help you manually discover the depths of your spectra one spectrum at a time. It can load MGF files (only in centroid mode, also do not forget to deconvolute if you have TD data). Once loaded you can select a scan and add you annotation while tweaking the exact settings for generating the annotation. The annotation itself is interactive to help you discover what the spectrum means. Which you can then export as nice images for use in other environments.

What's new in 1.2.1

  • Fixed custom modifications and custom models not being displayed
  • Fixed print output including unnecessary parts
  • Updated naming of "folder" button to better reflect it use for Bruker .d data
  • Better error output + merged identical errors
  • Added generalised display of flanking residues for identified peptidoforms
  • Improved support for MaxNovo de novo sequences
  • Added support for π-HelixNovo, π-PrimeNovo, Proteoscape, and Casanovo v5.0

Full release notes »

Technical details

Publishersnijderlab
AuthorSnijderlab
Version1.2.1
Release date2025-09-01
LicenseMIT
Installer typenullsoft, wix
Architecturex64
Package IDSnijderlab.Annotator

Install Annotator from the command line

Install with Windows Package Manager
winget install --id=Snijderlab.Annotator -e
Update to the latest version
winget upgrade --id=Snijderlab.Annotator -e
Uninstall
winget uninstall --id=Snijderlab.Annotator -e
Silent install with the offline installer
"Annotator_1.2.1_x64-setup.exe" /S

spectrum

Annotator version history

  • 1.2.0
  • 1.1.3
  • 1.1.2
  • 1.1.1
  • 1.1.0
  • 1.0.0
  • 0.2.2
  • 0.2.1

Frequently asked questions

Is Annotator free?

Yes. Annotator is free and open-source software released under the MIT license.

What is the latest version of Annotator?

The latest version is 1.2.1, released on Sep 1, 2025.

Is it safe to download Annotator?

The download button links to the official installer published on github.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with 8e33ece379158db40133992a0bf176b67f1c802edba409dd28fce687d2c88452.

Which Windows versions does Annotator support?

Annotator runs on Windows and is available for 64-bit (x64) systems.

How do I install Annotator silently?

Run the offline installer with "Annotator_1.2.1_x64-setup.exe" /S, or install it with Windows Package Manager: winget install --id=Snijderlab.Annotator -e --silent.

How do I uninstall Annotator?

Open Settings › Apps › Installed apps, find Annotator and select Uninstall. From the command line, run winget uninstall --id=Snijderlab.Annotator -e.