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Name Modified Size InfoDownloads / Week
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SageThumbs2K-Portable-2.1.1-arm64.zip 2026-08-17 22.0 MB
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SageThumbs2K-Portable-2.1.1.zip 2026-08-17 23.7 MB
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SageThumbs2K-Setup-2.1.1-arm64.exe 2026-08-17 12.5 MB
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SageThumbs2K-Setup-2.1.1.exe 2026-08-17 13.8 MB
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README.md 2026-08-17 4.1 kB
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SageThumbs 2K 2.1.1 source code.tar.gz 2026-08-17 5.0 MB
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SageThumbs 2K 2.1.1 source code.zip 2026-08-17 5.3 MB
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Totals: 7 Items   82.3 MB 0

TL;DR

🩹 Fixed

  • Some AVI videos no longer get a black thumbnail
  • Build thumbnails here no longer finishes with thumbnails missing
  • About no longer checks for updates when automatic checking is off
  • Settings headings no longer cut off the bottom of letters
Read more: everything in 2.1.1 ### Fixed - **Some AVI videos had a completely black thumbnail.** The affected files store empty filler frames that carry no picture, and we were taking the first frame we could decode without ever looking at it, so if one of those landed where the thumbnail is taken from, you got black, even though your thumbnail-position setting was working perfectly. We now check whether a frame actually has a picture in it and move on to the next one if it does not. A genuinely black video still gets its black thumbnail, and dark scenes are unaffected: a frame only counts as empty when EVERY pixel in it is black. - **"Build thumbnails here" could report 100% while some thumbnails were still missing.** A file is built at several sizes, one per Explorer view, and the run marked a file done if ANY of them worked. So a size that quietly failed left you with a finished-looking run and a folder that still built its tiles on first open. PDFs showed this most, because each size re-renders the page and several files render at once, so one could run out of time while the others succeeded. A size that misses now gets one more attempt once the rest of that file is done, and anything still missing is reported as **partly built** instead of counted as finished. - **Opening About started an update check even with automatic checking turned off.** The setting correctly governed the check that happens when the app starts, but the About page ignored it and checked every time it opened. It now respects the setting, and shows "Check for updates" so you can still check whenever you want with one click. The button itself is unchanged: press it and it checks, setting or no setting. - **Settings headings cut off the bottom of letters like "g".** The heading's height was a fixed number rather than measured from the font, so it was always a few pixels short, and the taller everything gets the more it takes off: at 300% display scaling it was losing around ten pixels. It now measures the font. A heading too long for the space ends in an ellipsis rather than running under the search box.

Verified installer

  • File: SageThumbs2K-Setup-2.1.1.exe
  • Size: 13756700 bytes

  • SHA-256: 0582529943521bb41009b106fb87358579b879fba7c129599efca1cff92a1ca0

  • ARM64 installer: SageThumbs2K-Setup-2.1.1-arm64.exe

  • ARM64 SHA-256: c1d94c399b8907f9e87b9a2dbcd81bc6f830b347bf7520a5f042fa0e283dd06f

Portable (no installer)

Extract and run. Nothing is installed, nothing goes in the registry, no admin needed. Settings live in SageThumbs2K.ini next to the exe.

You get the app and the command line tool: settings, convert and resize, quick preview, screenshots, OCR, the colour picker and the folder tools.

Explorer thumbnails and the classic right-click menu work too. Turn them on with st2k register, or the button in Settings under Advanced. That registers the handler for your user account only: no installer, no administrator rights, nothing written machine-wide. st2k register --off undoes it, and you should run that before moving or deleting the folder, otherwise Windows is left pointing at a file that has gone.

Three things still need the installer, because Windows only accepts them registered for the whole machine: the Explorer preview pane, the Details pane columns, and the Windows 11 right-click menu (the compact one).

  • x64 portable: SageThumbs2K-Portable-2.1.1.zip

  • x64 portable SHA-256: 3db89e2913a2d664a581045a3ce4d3f7a78b25d4042cc039314f97ce6c8aeed7

  • arm64 portable: SageThumbs2K-Portable-2.1.1-arm64.zip

  • arm64 portable SHA-256: 2a0970f9137530a06149dde7145606e244950843df6eccac7839858f1f4d88fd
Source: README.md, updated 2026-08-17