✓ Official v6.41 Files with Verified SHA-256 Checksums

Download StereoPhoto Maker (SPM)

Download StereoPhoto Maker Pro 64-bit and 32-bit directly from the author’s official site (stereo.jpn.org), with an optional unofficial mirror for convenience. The macOS package is a separate Wine-based bundle from the author — please read its notes before downloading.

Recommended Production Build

StereoPhoto Maker Pro 64-bit (v6.41)

The current 64-bit build by Masuji Suto, released 11 July 2026. The ZIP contains stphmkrpro_e.exe plus spphotolib64.dll, the library that lets SPM open Apple spatial photos (HEIC) and WebP files. Portable: unzip and run, no installer.

For 64-bit Windows (portable executable; keep the DLL in the same folder as the .exe)
Download 64-bit Standalone Official ZIP from stereo.jpn.org · 4,793,852 bytes (4.68 MB) Unofficial mirror (Terabox) — the official download above is recommended: mirror copy

StereoPhoto Maker 32-bit (v6.41)

The 32-bit build of the same v6.41 release, for older 32-bit Windows systems. The ZIP contains stphmkre.exe plus spphotolib32.dll.

Download 32-bit from the Official Site (3.09 MB) Unofficial mirror (Terabox) — the official download is recommended: mirror copy

StereoPhoto Maker Pro for macOS (v6.20a)

The author’s macOS package is the Windows build wrapped in a Wine runtime — it is not a native Mac app, and its core is v6.20 (2021). The author confirms it on Intel and Apple Silicon (M1) Macs running macOS High Sierra through Monterey; newer macOS versions are not officially confirmed, and the built-in browser feature does not work. It includes the DMAG depth-map utility by Ugo.

⚠️ Footprint Notice: 252 MB Zip Archive (Decompresses to ~1.1 GB)
Get the macOS Bundle from the Author’s Page Unofficial mirror (Terabox) — the official download is recommended: mirror copy

🛡️ Binary Cryptographic Manifest & Safety Assurance

The primary buttons on this page link to the author’s official files on stereo.jpn.org. The checksums below were computed by this site from the official v6.41 archives on 23 October 2026, so you can verify the file you downloaded byte for byte. The Terabox links are unofficial mirror copies kept for convenience.

stphmkrpro_e_641.zip (64-bit, 4,793,852 bytes) SHA-256: f00a53963f3510b2f5c825121768d7ea4a49e555965f95e772fc228db6c16cda
stphmkre641.zip (32-bit, 3,236,198 bytes) SHA-256: 926ac97441b863376a0a03efec28304805ed53b926c92a9ec62cf645d2be9bf9

🛠️ Platform Deployment & macOS Gatekeeper Command Override

StereoPhoto Maker is a portable Windows program: unzip and run. The author’s macOS bundle wraps it in Wine, and macOS may block it on first launch because the bundle is not signed — the author’s own Mac page documents the workaround below.

Win Windows Deployment Workflow

  1. Unzip: Extract stphmkrpro_e_641.zip completely to a local folder (e.g., C:\StereoPhotoMaker\), and keep spphotolib64.dll in the same folder as the .exe — SPM needs it to open HEIC and WebP files.
  2. Run: Double-click stphmkrpro_e.exe. There is no installer and no administrator setup, and SPM needs no runtime packages — the ZIP contains everything it uses.
  3. SmartScreen note: SPM is freeware without a commercial code-signing certificate, so Windows SmartScreen may show an “unrecognized app” prompt. Only continue if the file you downloaded matches the SHA-256 checksum above and came from the author’s official site; when in doubt, do not run it.

Mac macOS Terminal Quarantine Fix

macOS Gatekeeper may refuse to open the bundle, or call it “damaged”, because files downloaded from the internet carry a quarantine attribute. The author’s Mac page documents this fix:

  1. Unpack the 252MB zip file and drag the SPM_MAC app icon straight into your local /Applications directory folder.
  2. Open your Mac’s native Terminal app utility.
  3. Copy-paste the following command structure followed by a single space (do not hit enter yet):
    sudo xattr -r -d com.apple.quarantine
  4. Drag and drop the SPM_MAC icon from Applications directly into the Terminal window to auto-fill the target path string, then hit Return. Input your local Mac admin password to authorize.

🚀 Advanced: How to Upgrade the macOS Port to the Latest v6.41 Core

The official macOS bundle embeds a v6.20 core. A community-known workaround is to replace the bundled Windows executable with the current one:

Step 1: Expand Package Right-click the Mac SPM_MAC icon in your Applications folder and choose “Show Package Contents” from the contextual option menu.
Step 2: Access Files Navigate deep into the file hierarchy path by expanding the target folders: Contents > Resources > drive_c > Program Files > SPM.
Step 3: Core Hot-Swap Download the latest Windows 64-bit build above, take its executable stphmkrpro_e.exe, and drag-and-drop replace it into this target directory block.

🔌 Optional Add-ons & Susie Format Plugins

Since v6.40, SPM opens Apple spatial photos (HEIC) and WebP files through the spphotolib DLL that ships inside the official ZIP — no separate plug-in download is needed for current versions. Susie plug-ins were the older route, used with pre-6.40 builds.

ifheic.spi

HEIC Input

A legacy Susie plug-in once used to load HEIC files on old builds. On v6.40 and later, HEIC is handled by the bundled spphotolib DLL instead.

ifwebp.spi

WebP Codec

A legacy Susie plug-in for WebP files. On v6.41, WebP opens through the bundled spphotolib DLL via WIC.

ifexr.spi

Legacy Plug-in

Older third-party Susie plug-ins existed for extra formats. This site does not host plug-in downloads; obtain them from their original authors.

⚙️ Plugin Activation Path: For current SPM versions there is nothing to activate: keep spphotolib64.dll (or spphotolib32.dll) in the same folder as the SPM executable. Very old builds could load Susie .spi plug-ins placed in that same folder.

🚀 30-Second Tutorial: Align Your First 3D Picture Pair

Avoid steep learning curves. Follow this ultra-fast micro-workflow to turn two separate Left/Right smartphone shots into a perfectly mounted stereoscopic asset.

01

Import Source

Launch SPM. Go to File > Open Left/Right Images. Select your designated Left eye photo first, followed immediately by your Right eye photo profile.

02

Auto Align

Press Alt + A on your keyboard, or navigate to Adjust > Auto Alignment. SPM aligns the pair automatically.

03

Choose Output

Click the top layout shortcuts grid to switch displays instantly: hit Anaglyph Mode for red/cyan glasses, or Side-by-Side for VR headsets/freeviewing.

04

Save

Go to File > Save Stereo Image and choose your target format. SPM saves the aligned pair in the format you selected.

💡 Processing Thousands of Files? Don’t repeat steps manually. Use File > Multi Conversion to run the batch automation suite. You can feed it entire folders of images and let SPM align, crop, and convert them to SBS or anaglyphs in one run — with no file-count limit.

🛠️ Compatibility Fixes & the StereoAutoAlign Command-Line Tool

SPM itself has no runtime prerequisites and no documented command-line mode. Most launch problems are unzip or file-placement issues; command-line batch alignment is what the author’s separate StereoAutoAlign tool is for.

⚠ If SPM Will Not Start

SPM does not need Visual C++ redistributables, DirectX runtimes, or any other prerequisite package — the official ZIP contains only the executable and its spphotolib DLL. If it refuses to launch, work through these checks instead:

  • Extract the ZIP fully before running; do not launch the .exe from inside the ZIP viewer.
  • Keep the .exe and its spphotolib DLL together in the same folder.
  • For the movie features, place ffmpeg.exe in the same folder — SPM only needs it for video.

💻 StereoAutoAlign (Separate Command-Line Tool)

For faster automatic alignment, the author provides StereoAutoAlign as a separate command-line program. Since SPM v6.17 it can also be called from inside SPM (Adjustment menu, Shift+A) or run in batch files against folders of pairs:

SPM itself has no -autoalign / -sbs / -jpg90 switches — those flags do not exist.
  • Keep StereoAutoAlign.exe in the same folder as SPM to use it from the Adjustment menu.
  • With ExifTool renamed to Exiftool.exe in the same folder, StereoAutoAlign batch processing can copy EXIF data from the originals to the outputs.
  • StereoAutoAlign is a separate download from the author’s site, not part of the SPM ZIP.

📜 Release Notes & Heritage Version Archive

Recent releases taken from the author’s own changelog, plus older builds the author still lists on the official site.

What’s New: v6.41, v6.40 and v6.33 (from the author’s changelog)

  • v6.41 (11 July 2026): The bundled spphotolib DLL can open .webp and other formats through WIC and read Apple spatial photos (HEIC); depth-map images can be extracted from HEIC portrait photos that contain depth information.
  • v6.40: Bundled the DLL that lets SPM read Apple’s spatial photos (HEIC) — keep it in the same folder as SPM.
  • v6.33: Stereo pairs shot on the Lume Pad 1 / Lume Pad 2, Nubia Pad 3D and RED Hydrogen One can be imported as separated left and right images, like MPO files; batch conversion is supported.

📥 Vault Repositories (Legacy Build Rollbacks)

Build Version Target Platform / Architecture Primary Historical Use Case
Ver 6.20 Windows build; also the core inside the author’s macOS Wine bundle The newest core the author has packaged for macOS (as a Wine bundle, 2021).
Ver 5.50 Windows 32-bit Native Removed the old 2,500-file cap on Multi Conversion.
Ver 4.34 Windows (package with the full help file) The author still offers this 2011 package with the help file included.
⚡

Ready to Build Perfect Stereoscopic Assets?

Don’t let alignment skews and vertical disparities ruin your 3D or VR180 viewing experience. Skip messy installers and launch your creative pipeline with the author’s own portable files.

🛡️ Freeware by Masuji Suto 🚫 No Installer — Portable ZIP 💾 4.68 MB ZIP (64-bit)

Complete Your Stereo Viewing Kit

SPM can show your pairs on screen, but two inexpensive accessories cover the classic viewing methods: red-cyan anaglyph glasses for anaglyph exports, and a stereo card viewer (stereoscope) for printed stereo cards.

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