Astronomical image processing for calibration, alignment and stacking of exposures, plus further image enhancement.
AT A GLANCE
What should you know about GraXpert?
Standalone tool for removing brightness gradients from astronomical images.
- Free plan
- Not verified
- API
- Not verified
- Self-hosting
- Not verified
These facts reflect linked documentation, not a hands-on test. A free plan can have usage limits; an unverified feature is not a confirmed absence. Check pricing and limits · How we review
toolkompass.io VERDICT
Our editorial assessment
Astrophotography · toolkompass.io editorial team · 11/11/2026
Focused tool for removing gradients from astrophotographs. Free availability, local file processing and a command line are documented; additional tools are needed for the rest of the imaging workflow.
Editorial assessment of the documented software offering. No business relationship disclosed. No hands-on product test or assessment of the company's creditworthiness. The assessment covers publicly documented properties. Usability, reliability and result quality have not been tested in practice.
Removing unwanted brightness gradients addresses a clearly defined astrophotography task. This specialization is coherent; it does not replace a complete calibration, stacking and editing environment.
GraXpert · Official website ↗The documented command line processes image files and saves background models. This allows the standalone program to fit into further workflows; it does not imply automatic integration with every imaging application.
GraXpert – official product documentation ↗The website explicitly provides the program as free and open-source software. Its specialized scope is clear; computing resources and other image-editing software are not automatically included.
GraXpert · Official website ↗Local file paths and configurable correction parameters provide influence over processing. Results and background models can be saved; your own backups and parameter checks remain necessary.
GraXpert – official product documentation ↗Fits GraXpert for your project?
Suitable for
Astrophotographers with unwanted background gradients
Less suitable for
Not yet sufficiently reviewed.
The classification is derived from the claims below and is not an independent quality assessment.
Features at a glance
Removes brightness gradients from astronomical images.
Provider documentation · no hands-on test · Source ↗ · Review status 11/10/2026Removes background gradients and associated color casts from astrophotographs.
Provider documentation · no hands-on test · Source ↗ · Review status 11/10/2026Runs independently rather than as a plugin for other software.
Provider documentation · no hands-on test · Source ↗ · Review status 11/10/2026
Documented strengths
Our editorial verdict presents strengths, limitations and evidence.
Drawbacks and limitations
Standalone specialist tool; not a complete replacement for an entire image-processing pipeline.
Editorial interpretation based on the source · Source ↗ · Review status 11/10/2026
Pricing & billing model
Check price. No confirmed plan amounts available.
Review status 11/10/2026. No price guarantee. For paid plans, check tax and usage terms in the source.
Integrations
No confirmed information
Open Source
Platforms
Downloads for Windows, macOS and Linux are linked.
Provider documentation · no hands-on test · Source ↗ · Review status 11/10/2026
Privacy information
No confirmed information
Support
No confirmed information
Sources & review status
We update our lists regularly. Changes are reviewed editorially; the review status of each detail remains visible. We explain the review process in our Methodology.
“Evidenced” refers to the specific claim. It means neither an independent product test nor a security audit.
- GraXpert · Official websitehttps://graxpert.com/ · retrieved on 11/10/2026
- GraXpert – official product documentationhttps://github.com/Dark-Matters-Astro/GraXpert/ · retrieved on 11/11/2026
More candidates for this use case
Shared category, not an automatic promise of equivalence. Check feature scope and research status.
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