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Aduku Stacker

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What Aduku Stacker is

Aduku Stacker combines photographs taken at different focus distances into a sharp image, for macro, product, landscape, and microscopy photography. It runs on macOS 13 or later and 64-bit Windows 10/11, and is listed as free. Users can choose Wavelet, Pyramid, Weighted, Hybrid, or Depthmap merging. The default workflow processes images at 16-bit and uses 32-bit floating-point merge calculations; memory-bounded batching is available for deep stacks. Alignment includes feature matching and subpixel refinement, with options for focus-breathing correction, homography, mesh warp, and manual seeding. Supported imports include JPEG, PNG, TIFF, BMP, HEIC, and DNG; exports include JPEG, PNG, TIFF, linear DNG, and depth maps. Proprietary RAW files may require Adobe DNG Converter on macOS. Retouching lets users paint from aligned source frames, erase strokes, and undo or redo, but there is no clone tool. Image processing happens locally and does not require an internet connection. The focus-stacking engine is also available as a command-line tool for scripted batch processing.

Who it suits

Aduku Stacker may suit photographers working with macro, product, landscape, or microscopy images who need focus stacking on macOS or Windows. Its command-line engine may also suit users scripting batch processing.

What it does well

  • Offers five image merge methods.
  • Provides automatic alignment with subpixel refinement.
  • Processes photos locally without an internet connection.
  • Includes retouching from aligned source frames.
  • Exports linear DNG and depth maps.

What to know first

  • There is no clone tool.
  • Proprietary RAW imports may need Adobe DNG Converter on macOS.
  • The maker makes no obligation to provide support, maintenance, or updates.

Plans

PlanBilled and limitsPrice
Aduku StackermacOS 13+ (Apple Silicon & Intel) · Windows 10/11 64-bitFree

As aduku.app lists them, read 30 Sept 2026. The maker's own page has the final word.

Getting started

  1. Visit the Aduku website.
  2. Use a computer running macOS 13 or later or 64-bit Windows 10/11.
  3. Install Aduku Stacker on the supported platform.
  4. Import a stack in one of the supported image formats.
  5. Choose a merge method and alignment options, then process the stack.

Verdict

Aduku Stacker provides several stacking and alignment options, local processing, and a command-line engine. Note its RAW import caveat and the absence of a clone tool.

Questions

Is Aduku Stacker free?

Yes. The listed Aduku Stacker plan costs nothing.

Which platforms does it support?

It supports macOS 13 or later and 64-bit Windows 10/11. The plan details specify Apple Silicon and Intel for macOS.

What file formats can it import and export?

It imports JPEG, PNG, TIFF, BMP, HEIC, and DNG. It exports JPEG, PNG, TIFF, linear DNG, and depth maps.

Does it work offline?

Yes. Image processing does not require an internet connection, and the maker says processing stays local.

Who makes Aduku Stacker?

The terms identify Suriyanarayanan R Srinivasan of Aduku Labs as the publisher. The site says the product is made in India.

Is support included?

The maker lists an email address for questions and support, while stating it has no obligation to provide support, maintenance, or updates.

Facts from Aduku Stacker's own pages

Alignment
Automatic alignment includes feature matching and subpixel refinement, with options for focus-breathing correction, homography, mesh warp, and manual alignment seeding. · aduku.app, 30 Sept 2026
Command line
The focus-stacking engine also ships as a command-line tool with parameter flags for scripting batch processing. · aduku.app, 30 Sept 2026
Connectivity
The FAQ says the app needs no internet connection for image processing. · aduku.app, 30 Sept 2026
Image processing
The default workflow processes images at 16-bit, uses 32-bit floating-point merge math, and supports memory-bounded batching for deep stacks. · aduku.app, 30 Sept 2026
Import and export
It supports JPEG, PNG, TIFF, BMP, HEIC, and DNG import, plus JPEG, PNG, TIFF, linear DNG, and depth-map export; proprietary RAW import may require Adobe DNG Converter on macOS. · aduku.app, 30 Sept 2026
Maker
The terms identify the publisher as Suriyanarayanan R Srinivasan of Aduku Labs, and the site says the product is made in India. · aduku.app, 30 Sept 2026
Merge methods
It offers five merge methods: Wavelet, Pyramid, Weighted, Hybrid, and Depthmap. · aduku.app, 30 Sept 2026
Privacy
The app processes photographs locally and says it does not upload images, create user accounts, or transmit analytics or telemetry. · aduku.app, 30 Sept 2026
Purpose
Aduku Stacker combines focus-bracketed photographs into one sharp image for macro, product, landscape, and microscopy photography. · aduku.app, 30 Sept 2026
Retouching
Users can paint from aligned source frames, erase strokes, and undo or redo retouching; the app does not yet have a clone tool. · aduku.app, 30 Sept 2026
Support
The maker lists [email protected] for questions and support, and says it has no obligation to provide support, maintenance, or updates. · aduku.app, 30 Sept 2026
System requirements
The stated requirements are macOS 13 or later or 64-bit Windows 10/11; 8 GB RAM is sufficient for most stacks and 16 GB is recommended for deep 16-bit RAW stacks. · aduku.app, 30 Sept 2026

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