2Dex Plain comparisons of image and design tools

FastStone Image Viewer alternatives in 2026

Compare SageThumbs 2K with image viewers and Windows tools such as Honeyview, Icaros, Imagine, IrfanView and XnView MP.

By 2Dex ·

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

SageThumbs 2K adds Explorer thumbnails for 363 file types, including design, RAW, HEIC/AVIF and video. [1] XnView MP provides batch conversion, while Icaros can register filetypes supported by FFmpeg. [2] [3]

OptionWhat it doesPrice
SageThumbs 2KExplorer thumbnails for 363 file types, including design, RAW, HEIC/AVIF and video [1]Free for personal, noncommercial use [1]; commercial US$2.99 a month or US$49 once [1]
HoneyviewImage viewer that can show images inside ZIP, RAR, 7Z, LZH, TAR, CBR and CBZ archives without extracting them [4]Freeware [4]
IcarosCan register filetypes supported by FFmpeg plus additional natively supported filetypes [3]not published
ImagineSupports numerous image and animation formats, including PSD, WEBP, AVIF and SVG, plus digital camera RAW formats [5] [5]not published
IrfanViewImage viewer with multiple-language support [6]Freeware for non-commercial use [6]
XnView MPBatch conversion tools, batch renaming and embedded color profile support [2] [2] [2]not published

Why designers look past FastStone Image Viewer

FastStone Image Viewer is described as an image browser, converter and editor that supports BMP, JPEG, HEIC, WEBP, GIF, PNG, PCX, PDF, PSD, TIFF, WMF, ICO, TGA and camera raw files. [7] FastStone Photo Resizer 4.5 is listed as free for personal use. [7] FastStone Capture can record screen activity, sound and webcam into MP4 video files. [7]

That gives a designer several image-focused jobs to compare, including file viewing, conversion, editing and screen recording. If the main requirement is Windows Explorer thumbnails for design files, RAW files, HEIC/AVIF or video, check whether the alternative handles those files directly in Explorer. SageThumbs 2K adds Explorer thumbnails for 363 file types that Windows cannot render natively, including those formats. [1] If batch image work matters, compare the conversion tools and the file types each option covers.

SageThumbs 2K: thumbnails for design, RAW and video files

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 pulls an embedded preview directly out of design and CAD files such as Photoshop, Affinity, AutoCAD DWG, and CorelDRAW with no rendering needed. [1]

Thumbnails also work in OneDrive and Synology Drive folders, and it never downloads online-only files just to draw a thumbnail. [1] Pressing the Space bar opens an instant preview, on by default unless another Space-bar previewer is installed. [1]

From the right-click menu you can convert images, resize them, rotate or flip them losslessly, and combine images into a PDF or CBZ. [1] It adds image dimensions, EXIF camera details and audio tags to Explorer's Details pane, hover tooltips, and sortable columns for formats Windows can't read itself. [1]

It runs on Windows 11, with separate installers for x64 and ARM64. [1] 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]

Honeyview: image viewing and archive browsing

Honeyview is a free image viewer, and its download is freeware with no adware, spyware, or virus. [4] It can show images inside ZIP, RAR, 7Z, LZH, TAR, CBR, and CBZ archives without extracting them. [4] It can also display EXIF information for JPEG files, including GPS information. [4]

Honeyview's page says there will be no more updates and directs users to BandiView for further improvements. [4] If archive viewing or JPEG EXIF information is part of the workflow, those details can be compared with the Explorer thumbnail and metadata features offered by SageThumbs 2K. [1]

Icaros: Explorer thumbnails for FFmpeg formats

Icaros can register filetypes supported by FFmpeg as well as additional filetypes it supports natively. [3] Icaros works on Windows Vista, Windows 7, Windows 8/8.1, Windows 10 and Windows 11. [3] Icaros 3.0.3 and previous versions work partially on Windows XP with thumbnails only. [3]

For a workflow centered on video and other FFmpeg-supported formats, compare the file types registered by Icaros with the formats in the folders being managed. SageThumbs 2K lists 363 file types, including camera RAW, Photoshop PSD, HEIC/AVIF and video. [1]

Imagine: image and animation format support

Imagine supports numerous image and animation file formats, including PSD, WEBP, AVIF and SVG. [5] It supports digital camera RAW image file formats including CR2, CR3, NEF, ARW and DNG. [5] Its main program version 2.7.2 was released on October 10, 2026. [5]

If the folders contain PSD, AVIF, SVG or camera RAW files, compare Imagine's listed formats with the files that need to be identified in Windows Explorer. SageThumbs 2K adds Explorer thumbnails for 363 file types and includes camera RAW, Photoshop PSD and HEIC/AVIF among them. [1]

IrfanView: a compact image viewer for Windows

IrfanView is freeware for non-commercial use. [6] It supports multiple languages. [6] The current IrfanView version listed on the page is 4.76. [6]

For a workflow based on an image viewer, compare those details with the need for thumbnails directly in Explorer. SageThumbs 2K adds thumbnails for 363 file types that Windows cannot render natively, including camera RAW, Photoshop PSD, HEIC/AVIF and video. [1]

XnView MP: batch image conversion

XnView supports batch renaming. [2] It supports embedded color profiles. [2] XnView includes batch conversion tools. [2]

That makes its listed batch work a point to compare when conversion is part of the job. SageThumbs 2K lets you convert images, resize them, rotate or flip them losslessly, and combine images into a PDF or CBZ from the right-click menu. [1] Multi-file jobs such as resize, rotate, strip and combine-to-PDF are spread across every CPU core. [1]

How to pick the right FastStone Image Viewer alternative

If the main requirement is Explorer thumbnails for design, RAW, HEIC/AVIF and video files, SageThumbs 2K covers those formats and lists 363 file types. [1] It also pulls embedded previews from Photoshop, Affinity, AutoCAD DWG and CorelDRAW without rendering them. [1]

If video and FFmpeg-supported formats are central, Icaros can register filetypes supported by FFmpeg. [3] Check the specific formats in the folders before choosing between the two.

If image and animation formats such as PSD, WEBP, AVIF, SVG and camera RAW are the focus, Imagine lists those formats. [5] [5] If non-commercial freeware matters, IrfanView is listed as freeware for non-commercial use. [6]

If archive image viewing matters, Honeyview can display images in ZIP, RAR, 7Z, LZH, TAR, CBR and CBZ without extraction. [4] If batch conversion matters, XnView includes batch conversion tools. [2]

If the goal is a Space-bar preview, SageThumbs 2K opens an instant preview when Space is pressed. [1] If paid work is involved, check the SageThumbs 2K licence terms before installing. 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]

Frequently asked questions

What is a FastStone Image Viewer alternative for Windows thumbnails?

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] It also pulls embedded previews from design and CAD files such as Photoshop, Affinity, AutoCAD DWG and CorelDRAW without rendering them. [1] Compare those formats with the files that need thumbnails in the actual folders.

Can SageThumbs 2K preview design files?

SageThumbs 2K pulls an embedded preview directly out of design and CAD files such as Photoshop, Affinity, AutoCAD DWG and CorelDRAW with no rendering needed. [1] It also adds Explorer thumbnails for 363 file types, including Photoshop PSD and camera RAW. [1] Check the listed formats against the design files that need to be identified in Explorer.

Is Honeyview still being updated?

Honeyview's page says there will be no more updates and directs users to BandiView for further improvements. [4] Honeyview can display images inside ZIP, RAR, 7Z, LZH, TAR, CBR and CBZ archives without extracting them. [4] It can also display EXIF information for JPEG files, including GPS information. [4]

Which Windows versions does Icaros support?

Icaros works on Windows Vista, Windows 7, Windows 8/8.1, Windows 10 and Windows 11. [3] Icaros can register filetypes supported by FFmpeg as well as additional filetypes it supports natively. [3] Icaros 3.0.3 and previous versions work partially on Windows XP with thumbnails only. [3]

Is SageThumbs 2K free for personal use?

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] Business installs get a 7-day evaluation with every feature, after which thumbnails and previews stop until a licence key is entered. [1]

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)
  2. XnView MP, xnview.com/en/xnviewmp, read 2026-10-07
  3. Icaros, github.com/Xanashi/Icaros, read 2026-10-07
  4. Honeyview, bandisoft.com/honeyview, read 2026-10-16
  5. Imagine, nyam.pe.kr/dev/imagine, read 2026-10-16
  6. IrfanView, irfanview.com, read 2026-10-16
  7. FastStone Image Viewer, faststone.org, read 2026-10-16

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