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DeepSNR

Free#17 of 29 in Photo Noise Reduction Software

DeepSNR: A free, local denoiser for astrophotography with CLI automation and editing integrations. Ranked #17 of 29 in Photo Noise Reduction Software by our editors (6.6/10); pricing: Free plan; best for free astronomy denoise with automation hooks.

6.6/10Editor score

Visit DeepSNR

DeepSNR6.6 Visit DeepSNR

At a glance

Editor score
6.6 / 10
Pricing
Free plan
Best for
Free astronomy denoise with automation hooks
Free plan
Yes
Paid from
Free
AI denoising
Yes
Facts checked
21 Oct 2026

Where it wins
- Processes TIFF, PNG and supported FITS files locally
- Offers command-line automation plus PixInsight and Photoshop modules
- Model 2 supports RGB/color and grayscale images
Where it doesn't
- Focused on astrophotography rather than general photo editing
- Camera RAW input is not documented
- Batch processing is not documented

Our verdict on DeepSNR

DeepSNR is StarNet Software’s local AI noise-reduction tool for astrophotography, suited to solo imagers and small workflows that process astronomical images. It runs on Windows, macOS and Linux, and is distributed as standalone command-line packages as well as modules for PixInsight and Adobe Photoshop. Model 2 supports both RGB/color and grayscale images, while the vendor provides guidance for calibrated astronomical data and narrowband combinations. Its focus is clear: this is a specialized denoising tool, not a broad photo-editing suite.

The strongest fit is for astronomy workflows that benefit from local file processing and automation. Command-line builds accept TIFF, PNG and supported FITS files and can be integrated with other image-processing software. Linear FITS processing includes automatic stretch options, and the PixInsight module connects it to an astronomy-oriented editing environment; a Photoshop plugin is also available. Windows packages support DirectML acceleration with CPU fallback. These options give users several ways to place denoising in a workflow without relying solely on a standalone graphical tool.

The vendor states that DeepSNR is free, and the product details describe no paid tiers. Its narrow format and workflow focus is also the main boundary: camera RAW input and batch processing are not documented. Choose DeepSNR if local AI denoising for astrophotography, FITS handling, command-line automation or the listed editing integrations matter most. A photographer seeking general-purpose noise reduction across camera RAW files or a documented batch workflow should consider a broader alternative instead.

Your product? Our editors can test DeepSNR in depth and publish a review, labelled as paid · from $149/mo →

DeepSNR pricing

Plans Free planFree Free to use — no paid tier required for the core job.

See plans on starnetastro.com

DeepSNR fact sheet

Free plan	Yes
Paid from	Free
RAW file support	Not verified
AI denoising	Yes
Batch processing	Not verified
Plugin support	Yes
Desktop platforms	Both
Processing mode	Local
Deployment	Desktop
Platforms	Windows, macOS, Linux
Built for	Solo, Small business (editorial estimate)
Integrations	2 integrations: PixInsight, Adobe Photoshop
Pricing	Free plan
Website	starnetastro.com
Facts checked	21 Oct 2026

DeepSNR integrations

DeepSNR lists 2 integrations on its own site.

PixInsight
Adobe Photoshop

Alternatives to DeepSNR

See all DeepSNR alternatives →

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Featured on iTechGuides

DeepSNR is listed in our Photo Noise Reduction Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated 29 Oct 2026 · How we research and update