中文 / English
A Windows GUI for the rimage image compression command line, built with WPF on .NET Framework 4.8.
You can click to view the original images, which are all provided as-is.
| Before | After |
|---|---|
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As shown in the above images, even the default quality option of 85 only slightly reduces the clarity of the image. If you are looking for "almost invisible loss of clarity", try quality options above 90.
Warning If the quality parameters are set too high, the image size may increase instead of decrease!
- Single-window layout: file list on the left, conversion settings on the right.
- Add files or drop files/folders anywhere on the list; folders are scanned recursively in the background and unsupported extensions are filtered out.
- 7 practical rimage encoders — mozjpeg (jpg), jpeg (jpg), oxipng (png), png (png), webp (webp), avif (avif) and jpeg_xl (jxl) — each labelled with the extension it produces. Formats without a quality parameter (the lossless codecs) disable and clear the quality field automatically.
- Support svg as input format.
- Niche intermediate formats (qoi, ppm, farbfeld) are intentionally not offered.
- Quality 100 (with no quantization set) on formats that have a lossless mode switches to the backend's
--losslessflag automatically (WebP). - Output to the original directory or a chosen directory (optionally preserving the folder structure), suffix support,
@backuporiginals, or delete originals after the output is verified. - Resize by classic arguments (
@1.5,150%,1920x1080,720w…) or by a longest/shortest-edge bound, with the full rimage filter list. - Live progress, per-file status and a log with the exact command line, success/failure diagnostics and a final succeeded/failed/skipped summary.
- Cancellable runs; the backend is embedded per-architecture and verified by hash and
--versionbefore first use. - Follows the Windows light/dark theme; Chinese/English UI strings follow the system language.
| Format | Input | Output | Special Notes |
|---|---|---|---|
| avif | ✓ | ✓ | Static Only |
| bmp | ✓ | ✕ | |
| hdr | ✓ | ✕ | |
| jpg/jpeg | ✓ | ✓ | Use Mozjpeg for more features |
| jxl | ✓ | ✓ | Static Only, Lossless Only |
| png | ✓ | ✓ | Lossless Only, Use oxipng for more features |
| psd | ✓ | ✕ | |
| tif/tiff | ✓ | ✕ | |
| webp | ✓ | ✓ | Static Only |
| svg | ✓ | ✓ |
Requires the .NET Framework 4.8 Developer Pack (and .NET SDK 6+ for dotnet build).
# development build (reads the backend from res/)
dotnet build wpf/RimageGui/RimageGui.sln
# release build with the rimage backend embedded (pick x64 or x86)
dotnet build wpf/RimageGui/RimageGui.csproj -c Release -p:Platform=x64The release build embeds res/rimage_<arch>.exe; at runtime it is unpacked to %LocalAppData%\Mikachu2333\RimageGUI\cache\<version>\<arch>\ after a SHA-256 integrity check.
This GUI targets rimage (the binaries shipped in res/). The rimage CLI surface changes between releases, so the GUI refuses to run against any other version.
MIT - see LICENSE.
Third-party notices: THIRD_PARTY_NOTICES.txt.