Image analysis in your browser, no pipeline to build
CellProfiler vs. Conspecta
A feature-by-feature comparison.
CellProfiler is a free, open-source desktop tool for building reproducible image analysis pipelines module by module, strong at running the same pipeline across thousands of images. Conspecta brings AI-assisted counting, measurement, and multi-channel viewing to the browser with no pipeline to assemble, and keeps every measurement connected to the sample it came from and the figure it feeds, free for you and one collaborator.
| Capability | Conspecta | CellProfiler |
|---|---|---|
| Runs on | Any browser, any device. Nothing to install. | Windows, macOS, and Linux desktop app, or headless on a cluster. |
| Price | Free for you and one collaborator. Academic teams pay a flat per-lab rate. | Free, open source. |
| Opens | TIFF, PNG, JPEG, BMP, and LIF, up to 200 files at a time. | TIFF, PNG, JPEG, and BMP, plus LIF and other microscopy formats through Bio-Formats. |
| How objects are found | An AI model for fluorescent cells, nuclei, and colonies, or a brightness threshold for light or dark shapes, tuned live on one image. | Threshold modules like IdentifyPrimaryObjects, or the RunCellpose and RunStarDist plugins, set up as a pipeline. |
| Measurements | Object counts, counts per region, marker-positive fraction, per-object and whole-image intensity, area coverage, colocalization, and per-object shape (area, perimeter, circularity, solidity). | Object size and shape, intensity, intensity distribution, texture, granularity, colocalization, neighbors, area occupied, skeleton, and image quality, one module each. |
| Running the whole set | Tune on one image, then run on every image in the set with a time estimate and a browser notification when it finishes. | Analyze Images runs the pipeline over the image list, or headless from the command line on a cluster. |
| Re-running later | Every run keeps its settings and reopens with its results. | A pipeline saves as a .cppipe file and re-runs identically on the same images. |
| Where the results go | A data table in the same project, linked to the sample and ready for a chart, a figure, or a note. | A CSV per object set, or a MySQL or SQLite database. |
| Export formats | Results as Excel or CSV. Charts as PNG, SVG, TIFF, or PDF. | Results as CSV or a database. Images and masks as TIFF, PNG, or JPEG. |
| Custom methods | Not available. Analysis is built from the eight types Conspecta comes with. | Your own Python modules, and the CellProfiler-plugins repository. |
| Who can open it | Everyone on the project, in the browser, at the same time. | One person at a time, by passing the pipeline file and the images around. |
How the workflows differ
Why labs look for a CellProfiler alternative
CellProfiler is free and built for reproducibility, and when you need a fixed pipeline run across thousands of images, that's exactly right. The friction is that building the pipeline is a project in itself. You wire modules together, tune each one, and validate the chain before you get a single number. For a lab that just needs to count cells and measure intensity on this week's images, that setup is a lot of work standing in front of a simple question.
No pipeline to build
Conspecta covers the common measurements without assembling anything first. You open an image, click to count cells or nuclei, and read back area coverage, intensity, colocalization, and per-object shape like circularity, solidity, and Feret diameter. When the generic detector misses your objects, you label a handful of examples and train one that finds them, with no modules to configure and no code. Run it across an image set when you're ready.
CellProfiler's module library goes deeper. Add the right modules and it measures texture, granularity, radial intensity distribution, and object-neighbor relationships that Conspecta doesn't compute. The cost is discovery. Each is a separate module you have to know exists and configure correctly, where Conspecta gives you the measurements most experiments report the moment you open an image.
Measurements that stay connected to the rest of your work
The clearest difference isn't the counting, it's what happens after. CellProfiler writes measurements to a CSV or a database and leaves the sample they came from and the figure they feed to other tools. In Conspecta, every measurement stays attached to the sample it was taken from, so its timepoint, condition, and genotype travel with it, and a figure you build pulls straight from that analysis.
In practice that means less of the manual bookkeeping that causes mistakes. You aren't matching exported rows back to wells, relabeling conditions, and pasting plots into a separate figure tool, so there's less chance of a mislabeled sample or a figure built from a stale export.
What switching actually looks like
Moving over is mostly a one-time step. You upload an image set and run a detection, with no pipeline to build first. Your measurements export as CSV and your images and figures export in open formats, so nothing you do is locked into the tool. If a validated pipeline is central to a high-throughput screen, it's fine to keep CellProfiler for that and use Conspecta for the everyday analysis.
CellProfiler vs. Conspecta: the bottom line
Switch to Conspecta if
- You want AI counting and measurement without building a pipeline module by module
- You'd rather point and click than configure and maintain a pipeline
- You want every measurement tied to its sample, figure, and notebook
- You want to run analysis on any machine with nothing to install
- Your team should share one workspace instead of passing pipeline files around
Stay on CellProfiler if
- You need a fixed, versioned pipeline you can rerun identically across thousands of images
- You run large batch jobs headless or on a compute cluster
- You need CellProfiler's deeper measurement modules, like texture, granularity, or object-neighbor relationships
- You need a free, offline tool that runs without a network connection
Or read the image analysis guide.
CellProfiler and all other product names and trademarks on this page belong to their respective owners. Conspecta is not affiliated with, endorsed by, or sponsored by them. This comparison is written by Conspecta, and we have tried to be fair, including where CellProfiler does things we do not. Pricing, packaging, and feature details about CellProfiler were last checked in July 2026 and may have changed since. Check their site for current details.
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