winget install --id LunarWerxs.SageThumbs2KAbout SageThumbs 2K
SageThumbs 2K is a modern, crash-isolated Windows 11 shell extension written in Rust that rebuilds the classic SageThumbs. It gives File Explorer thumbnails for 326 file types Windows can't preview on its own — camera RAW, HEIC/AVIF, Photoshop, DjVu, ebooks and comics, video frames, 3D-print files and a long tail of obscure formats — plus a right-click image toolkit (convert, resize, rotate, OCR, color picker, metadata strip, combine-to-PDF/CBZ) and a console/AI CLI. Free for personal use.
What's new in 1.8.1
What's changed Added - The portable version can now do Explorer thumbnails after all. 1.8.0 said it couldn't. That was wrong, and this fixes it. The zip now includes the thumbnail handler, and st2k register (or the button in Settings -> Advanced) switches it on for your user account only - no installer, no administrator rights, nothing written machine-wide. The classic right-click menu comes with it. 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 is no longer there. The Explorer preview pane, the Details pane columns and the Windows 11 right-click menu still need the installer, because Windows only accepts those registered for the whole machine. (issue #13) Verified installer - File: SageThumbs2K-Setup-1.8.1.exe - Size: 13465836 bytes - SHA-256: 714e3606bf17a5f5e14455bc5d6dc0e75ba8c8ee3b0d1a8b7391ce57ee6e4c4c - ARM64 installer: SageThumbs2K-Setup-1.8.1-arm64.exe - ARM64 SHA-256: 7bc1a35ef18c855f89c5c6bf18c6c0e39b67c747c71064f9ba10d5e7d84ece1f 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. It gives you the app and the command line tool: settings, convert and resize, quick preview, screenshots, OCR, the colour picker and the folder tools. It does not give you Explorer thumbnails or the right-click menu, because Windows only loads a shell extension whose COM class is registered. Install the normal build for those. - ** x64 portable:** SageThumbs2K-Portable-1.8.1.zip - **...
Version history
| Version | Updated | Notes |
|---|---|---|
| 1.8.1 | Unknown | What's changed Added - The portable version can now do Explorer thumbnails after all. 1.8.0 said it couldn't. That was wrong, and this fixes it. The zip now includes the thumbnail handler, and st2k register (or the butto... |
| 1.8.0 | Unknown | What's changed Added - Optional format badge on thumbnails. Turn it on and every thumbnail gets a small label in its corner saying what the file actually is - PSD, JXL, AVIF, JP2 - so you can tell formats apart in a fold... |
| 1.7.5 | Unknown | What's changed Fixed - Black-and-white scanned pages could render as a solid black square. Some JPEG 2000 scans - the kind archive.org uses for book and map pages - store the picture as numbered colours rather than as br... |
| 1.7.4 | Unknown | What's changed Changed - Game textures with mipmaps thumbnail about 17x faster. A .dds file usually already contains the picture at every halved size down to 1 pixel, because that is what a game engine displays at a dist... |
| 1.7.2 | Unknown | What's changed Fixed - Blender .blend thumbnails were upside down (#10). Blender stores its preview bottom-up, and we were reading the rows straight through, so every .blend came out vertically flipped. Now flipped to ma... |
| 1.7.1 | Unknown | What's changed A word about updates. Ship nothing for a month and people ask whether the project is dead. Ship twice in one day and people ask you to please, for the love of god, stop. There is no version of this that ev... |
| 1.7.0 | Unknown | What's changed Added - Quick preview remembers the size you drag it to. Previously every file reopened at the size the viewer picked for that file, so a window you had just widened snapped back the moment you arrowed to... |
| 1.6.0 | Unknown | What's changed Added - Windows on Arm is supported, with its own installer. SageThumbs2K-Setup-<ver>-arm64.exe runs natively on ARM64 Windows instead of under emulation, and it is a full build: it bundles the same ImageM... |
| 1.5.0 | Unknown | What's changed Added - Screenshots of an HDR display are no longer washed out. Grabbing the screen the ordinary way gets what Windows has already flattened to standard range, which on an HDR monitor looks pale and grey w... |
| 1.4.1 | Unknown | What's changed This one rolls up 1.4.0 and 1.4.1. New - Read the text off your screen. The screenshot editor has a Copy text (OCR) button (Ctrl+T): drag a region and the words land on your clipboard and in a small editab... |
| 1.3.8 | Unknown | What's changed Fixed - HEIC and AVIF thumbnails keep their declared colors. Files that pair Display-P3 primaries with a non-sRGB transfer curve are no longer forced through an incompatible Display-P3 profile, which could... |
| 1.3.7 | Unknown | Fixed - The right-click preview shows the picture again, without recolouring your menu. Since 1.3.2 the preview had been squashed into a strip a few pixels tall on PCs running a third-party menu skin such as StartAllBack... |
| 1.3.6 | Unknown | What's changed - Explorer stays responsive when menus and metadata appear. Right-click construction no longer decodes the selected file just to prepare a preview; the image is generated only if the SageThumbs submenu act... |
| 1.3.5 | Unknown | Full Changelog: v1.3.4...v1.3.5 |
| 1.3.4 | Unknown | SageThumbs 2K 1.3.4 This patch release makes Quick preview a little faster and easier to use while tightening the release process itself. What changed - Static GIF, PNG and WebP previews no longer read the same file twic... |
| 1.3.3 | Unknown | What changed - The Quick preview scrollbar for long text, code and rendered Markdown is now interactive: drag the thumb to move through the document, or click the track to move one page. - High-resolution mouse-wheel and... |
| 1.3.2 | Unknown | What changed - Large solid .7z archives no longer trigger huge decompression work just to make a thumbnail. Images near the front still preview; deeply buried images fall back to the normal archive icon. - ZIP and 7z arc... |
| 1.3.1 | Unknown | What's new in 1.3.1 "Show quick actions in the menu" works again. Turning it on puts Convert into, Convert…, Resize and Rotate right on the right-click menu instead of one level deep in the submenu. On many setups it was... |
| 1.3.0 | Unknown | What's new in 1.3.0 Thumbnails for ZIP, RAR and 7z archives A plain archive no longer shows a generic icon. It shows what's inside: either a single cover image, or by default a contact-sheet collage of up to four, so a f... |
| 1.0.1 | Unknown | A small patch that fixes convert output size for vector graphics. Fixed - Small vector graphics now convert to a usable size. Right-clicking Convert into PNG on a small SVG icon (or a small .emf clip art) used to produce... |