2Dex Plain comparisons of image and design tools

How to check product photo thumbnails quickly for e-commerce sellers in 2026

A practical way for e-commerce sellers to check product photo thumbnails in Windows, compare tools, and avoid common preview problems.

By 2Dex ·

2Dex is published by the makers of SageThumbs 2K, RēDesign and VectorMagik, which are compared here alongside other tools.

Open a test folder with product photos, switch File Explorer to a large icon view, check that thumbnails are enabled, and compare the formats you need against the tool's supported file types. SageThumbs 2K adds File Explorer thumbnails for 363 file types, including camera RAW, Photoshop PSD, HEIC/AVIF, and video. [1]

OptionThumbnail formatsPersonal useCommercial use
SageThumbs 2KAdds thumbnails for 363 file types including camera RAW, Photoshop PSD, HEIC/AVIF, and video. [1]Free for personal, noncommercial use. [1]US$2.99 a month, or US$49 once for a perpetual licence with 12 months of updates. [1]
Other thumbnail add-onsNot publishedNot publishedNot published

What you need before you start

Checking product photo thumbnails quickly starts with a small, representative folder rather than a whole product library.

Finally, close open File Explorer windows so the result can be checked cleanly after installing a thumbnail tool.

Step by step

  1. Open the test folder. Use a folder containing product photos that represent the formats used in the store workflow. This makes it easier to see whether the selected tool handles the files that matter.
  1. Switch to a large icon view. In File Explorer, choose Large icons or Extra large icons from the View menu. Small previews are easier to judge when the product image occupies more of the folder view.
  1. Check that thumbnails are allowed. Open Folder Options, go to the View tab, and make sure the setting that always shows icons instead of thumbnails is not selected. That setting can hide thumbnails regardless of the add-on installed.
  1. Check the file formats. Compare the extensions in the test folder with the formats listed by each thumbnail tool. For SageThumbs 2K, the supported list includes 363 file types, including camera RAW, Photoshop PSD, HEIC/AVIF, and video. [1]
  1. Pick a tool that covers the files being checked. If a tool's published format list does not cover a file type, look for another option rather than assuming the thumbnail will appear.
  1. Install the selected tool. Match the installer to the Windows chip type. SageThumbs 2K has separate x64 and ARM64 installers. [1] It also has a portable zip that needs no admin rights. [1]
  1. Restart File Explorer. Close and reopen File Explorer after installation. Signing out and back in, or restarting Windows, can also refresh the result.
  1. Scan the test folder visually. Look for the product photos that previously showed generic icons. Check several file types rather than deciding from one image.
  1. Check cloud folders if they are part of the workflow. SageThumbs 2K supports thumbnails in OneDrive and Synology Drive folders without downloading online-only files just to draw a thumbnail. [1]
  1. Check the Details pane and hover information when useful. SageThumbs 2K can add image dimensions and EXIF camera details to Explorer's Details pane, hover tooltips, and sortable columns for formats Windows cannot read itself. [1]
  1. Check colour before approving a thumbnail as a visual reference. SageThumbs 2K converts images with an embedded ICC profile or a wide-gamut tag such as Display P3 or Adobe RGB into sRGB before display. [1]
  1. Check the actual source image before publishing. A thumbnail is useful for quickly finding the right product photo, but the source file remains the image to inspect for final product presentation.

Tools that can do it

Facts are published here for only one named tool, so the comparison is short. For another codec pack or thumbnail add-on, check its own page for the image formats it lists, its Windows support, its licence terms, and whether it needs administrator rights.

### SageThumbs 2K

SageThumbs 2K is made by the team that publishes this site. It adds File Explorer thumbnails for 363 file types that Windows can't render natively, including camera RAW, Photoshop PSD, HEIC/AVIF, and video. [1] It runs on Windows 11, with separate installers for x64 and ARM64. [1] You can use a portable zip that needs no admin rights. [1]

For product photo folders, thumbnails also work in OneDrive and Synology Drive folders, and the tool never downloads online-only files just to draw a thumbnail. [1] It can pull an embedded preview directly from design and CAD files such as Photoshop, Affinity, AutoCAD DWG, and CorelDRAW without rendering the file. [1]

It also adds image dimensions, EXIF camera details, and audio tags to Explorer's Details pane, hover tooltips, and sortable columns for formats Windows cannot read itself. [1] From the right-click menu, images can be converted, resized, rotated or flipped losslessly, or combined into a PDF or CBZ. [1] Multi-file jobs such as resize, rotate, strip, and combine-to-PDF are spread across every CPU core. [1]

For licensing, it is free for personal, noncommercial use under the PolyForm Noncommercial License 1.0.0. [1] Commercial use needs a per-installation licence: US$2.99 a month, or US$49 once for a perpetual licence with 12 months of updates. [1] Business installs get a 7-day evaluation with every feature, after which thumbnails and previews stop until a licence key is entered. [1]

### Other thumbnail add-ons

For other thumbnail add-ons, check the published file formats, Windows versions, licence terms, installation requirements, and treatment of cloud folders before choosing one.

Common mistakes to avoid

Frequently asked questions

How can e-commerce sellers check product photo thumbnails quickly?

Open a test folder containing representative product photos, switch File Explorer to Large icons or Extra large icons, and make sure thumbnails are enabled in Folder Options. Then compare the file extensions in the folder with the formats supported by the selected thumbnail tool. SageThumbs 2K lists 363 supported file types, including camera RAW, Photoshop PSD, HEIC/AVIF, and video. [1]

Can SageThumbs 2K show thumbnails for product photos?

SageThumbs 2K adds File Explorer thumbnails for 363 file types that Windows cannot render natively, including camera RAW, Photoshop PSD, HEIC/AVIF, and video. [1] For a product photo workflow, place representative files in a test folder, use a large icon view, and check the formats that matter before relying on the thumbnails.

Is SageThumbs 2K free for e-commerce sellers?

SageThumbs 2K is free for personal, noncommercial use under the PolyForm Noncommercial License 1.0.0. [1] Commercial use needs a per-installation licence: US$2.99 a month, or US$49 once for a perpetual licence with 12 months of updates. [1] Sellers should determine whether their use is commercial before choosing the licence.

Can SageThumbs 2K check product images in OneDrive?

SageThumbs 2K supports thumbnails in OneDrive and Synology Drive folders, and it never downloads online-only files just to draw a thumbnail. [1] This can be checked with a test folder that contains the same kinds of product photos used in the store workflow. For another thumbnail tool, check its published treatment of synced and online-only files.

Can SageThumbs 2K show image details in File Explorer?

SageThumbs 2K adds image dimensions, EXIF camera details, and audio tags to Explorer's Details pane, hover tooltips, and sortable columns for formats Windows cannot read itself. [1] For product photo checks, these details can help identify dimensions or camera information without opening each source file. Check the actual image separately when making final publishing decisions.

It is free for personal, noncommercial use under the PolyForm Noncommercial License 1.0.0. [1]

Try SageThumbs 2K

Sources

  1. SageThumbs 2K's own description of itself (the product of this site's publisher)

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