SageThumbs 2k - Browse /v3.0.4 at SourceForge.net

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Name	Modified	Size	InfoDownloads / Week
Parent folder
SageThumbs2K-Portable-3.0.4-arm64.zip	2026-09-14	23.1 MB	0
SageThumbs2K-Portable-3.0.4-arm64.zip.sig	2026-09-14	128 Bytes	0
SageThumbs2K-Setup-3.0.4-amd64.exe	2026-09-14	14.2 MB	0
SageThumbs2K-Setup-3.0.4-amd64.exe.sig	2026-09-14	128 Bytes	0
SageThumbs2K-Portable-3.0.4.zip	2026-09-14	24.8 MB	0
SageThumbs2K-Portable-3.0.4.zip.sig	2026-09-14	128 Bytes	0
SageThumbs2K-Setup-3.0.4-arm64.exe	2026-09-14	12.9 MB	0
SageThumbs2K-Setup-3.0.4-arm64.exe.sig	2026-09-14	128 Bytes	0
SageThumbs2K-Setup-3.0.4.exe	2026-09-14	14.2 MB	0
SageThumbs2K-Setup-3.0.4.exe.sig	2026-09-14	128 Bytes	0
README.md	2026-09-14	4.6 kB	0
SageThumbs 2K 3.0.4 source code.tar.gz	2026-09-14	9.1 MB	0
SageThumbs 2K 3.0.4 source code.zip	2026-09-14	9.7 MB	0
Totals: 13 Items		108.1 MB	0

Two fixes for bugs people reported: iPhone ProRAW photos thumbnail in colour again, and Convert no longer quietly writes a tiny file when it is given a very large picture.

TL;DR

🩹 Fixed

iPhone ProRAW photos thumbnail in colour again, not grey (fixes [#42])
Converting a very large picture no longer writes a tiny one (fixes [#41])

Read more: everything in 3.0.4

- **iPhone ProRAW photos thumbnail in colour again instead of a grey wash** ([#42](https://github.com/LunarWerxs/SageThumbs-2k/issues/42)). A ProRAW `.DNG` stores two pictures one after the other: the colour preview, and Apple's HDR gain map, which is a black-and-white helper image. Whichever of the two was larger used to win, so most of a folder of photographs could come out as bright grey pictures while the rest looked fine. The colour picture is now always preferred, and a camera that really does shoot in black and white still thumbnails from its own preview. - **Converting a very large picture no longer writes a tiny one** ([#41](https://github.com/LunarWerxs/SageThumbs-2k/issues/41)). Above a size that depended on how fast the computer was, Convert and Resize gave up on the picture after 20 seconds and quietly used the small preview stored inside the file instead, so a 45-megapixel photo asked to fit 1920x1080 was written out at 107x160 and reported as done. A conversion you asked for now gets the time a file that size needs, and if only a small stand-in preview can be read, the file is listed as failed with both sizes named rather than written out. - For the few installations set up for business use: a copy with no licence key now evaluates for 7 days and then asks for one. Personal use is unaffected.

Verified installer

File: SageThumbs2K-Setup-3.0.4.exe
Size: 14226648 bytes
SHA-256: ebcf285ff8b5e36c126acf3b2026765b486e9836f5a69e4a9d69bcdec2a3c30e
ARM64 installer: SageThumbs2K-Setup-3.0.4-arm64.exe
ARM64 SHA-256: 1ff3f84b6ddbb39220603b59a8fb17d02ade1542de11b7326ba66f16bc217e48
x64 installer, second copy: SageThumbs2K-Setup-3.0.4-amd64.exe is the same file as the verified x64 installer above, published under a name that lists first so that copies older than 1.3.6 can update themselves. Download the plain one.

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-3.0.4.zip
x64 portable SHA-256: 043195704e84b359ef3ed66b416d98ed52094e27b9fca75be7bdd9b70c6207a6
arm64 portable: SageThumbs2K-Portable-3.0.4-arm64.zip
arm64 portable SHA-256: e7b37b914c0fd4b5af42a0694f6c9421992e602e2d39d1d2c52f9f664527962c

Antivirus / SmartScreen: these builds are code-signed. A brand-new signed file with no download history draws reputation-based warnings. Scan results for these exact bytes: