Microscopy Image Analysis Software: 18 Tools Compared

The best tool for each job

Free and open-source microscopy analysis software

All of these cost nothing. Fiji and QuPath read proprietary formats such as CZI, ND2, LIF and SVS through the Bio-Formats library (QuPath also uses OpenSlide); ilastik expects TIFF, HDF5 or OME-Zarr, so convert first.

Commercial microscopy analysis software

No vendor below publishes a price; all sell by quote, usually with modules, subscriptions or institutional licenses, and most offer a trial. Imaris 11.1 added a native ZEISS CZI reader; arivis Pro reads 30+ formats including CZI, ND2, LIF and VSI; Aivia reads 45+ formats including native LIF; HALO reads the major whole-slide formats including SVS, NDPI, MRXS, CZI and iSyntax.

What changed in 2023-2026

• MetaMorph is discontinued. Molecular Devices stopped offering the MetaMorph suite, including MetaFluor and MetaVue, after 7 July 2023, and names no replacement (Molecular Devices).
• CellProfiler has not had a stable release since 4.2.8 in September 2024. A 5.0 development tag exists, but no release.
• Aperio ImageScope is no longer under active development, per Leica; it remains a free Windows viewer (see ImageScope on a Mac).
• arivis Vision4D is now ZEISS arivis Pro, still Windows only.
• Imaris 11.1 reads ZEISS CZI natively (September 2026).
• NIS-Elements AR 7 requires Windows 11 Pro and is not compatible with Windows 10.
• Fiji's main build moved to Java 21 and supports arm64 builds.
• Cellpose models are trained on CC-BY-NC data, which matters if you use them commercially, even though the code is BSD-licensed.
• Leica Aivia is still developed: Aivia 16 shipped in June 2026.

How to choose

Start from the job, not the feature list. Most imaging time goes on four jobs: looking at and verifying an acquisition, measuring and recording, quantifying objects, and building a bespoke pipeline. The first two need a fast viewer; the last needs a programmable platform.

Whole-slide pathology: QuPath first; HALO or Visiopharm when a lab needs validated, scaled tissue quantification. Confocal and 3D: Imaris or arivis Pro if budget allows, Fiji, napari or Icy if not, with Huygens for deconvolution. High-content screens: CellProfiler. Deep-learning segmentation: Cellpose or StarDist, inside napari, Fiji or QuPath, or ilastik for interactive training. Data management and sharing is a separate job: OMERO (free) stores and serves images for all of the above.

Check your file format before you commit. Bio-Formats support does not guarantee every variant opens; QuPath's own documentation warns that listed formats will not always open properly. Our format benchmark opened 792 real files in 14 formats and publishes every failure.

Where SlideScope fits

SlideScope is a desktop viewer for Windows and Mac that opens CZI, ND2, LIF, SVS, NDPI, MRXS, DICOM and OME-TIFF directly, and since version 1.10.0 also VSI, OIB and OIR, LSM, ZVI, Leica LOF and XLEF, DeltaVision, MetaMorph STK and ND and local OME-Zarr, with the acquisition metadata each file records, measures in calibrated micrometres, keeps annotations, and runs local quantification: it segments nuclei, cells or particles on your own computer and exports counts, morphology and intensity as CSV, GeoJSON and mask TIFF, with batch runs over a folder. It has no scripting, macros or custom pipelines, so for bespoke analysis keep Fiji, CellProfiler, QuPath or napari and use SlideScope in front of them. Comparisons: Fiji and ImageJ, QuPath and napari, CellProfiler.

Questions about microscopy image analysis software

Sources

Platforms, licenses and release versions are from each project's or vendor's own site and release pages, checked on 8 October 2026 and linked in the tables above. Where a vendor does not state something publicly (for example HALO's or Visiopharm's operating systems), the table says so rather than guessing. Corrections: support@slidescope.science.