tor4kichi

TsubameViewer

An image, novel, and movie viewer designed exclusively for Windows

These pages are in Japanese, so please use your browser’s translation feature.

Open a file by selecting Tsubame Viewer from File Explorer, or drag and drop the file into Tsubame Viewer to get started
You can use the app more conveniently by registering folders
- Displays thumbnails not only for images and videos but also for EPUB and ZIP files
- You can perform a filtered search for files with Japanese titles using Romanized input
- Shows which content you’ve already viewed
- Displays your viewing history
Supports tablet display and touch controls
- Responsive UI that adapts to different screen sizes and screen rotation
- You can set the app to launch in full-screen mode
Fully offline operation (Data communication during app updates is handled by the OS)
Access all features with no ads and no in-app purchases
In-app purchases are available as a way to support the development of this app. Please purchase add-ons to support the developer.
The source code is openly available (see the link below)

*1 Requires a separate extension to add codecs

Bookmark Feature
- Saves your last viewing position. Automatically resumes from there when you reopen the file.
Displays compressed files directly without extracting them to storage
- Supported by both the image viewer and the novel viewer
Displays viewing progress at the bottom of the screen
Detects previous and next content and automatically moves to the next item
Opens the viewer in a separate window

Supports two-page view
Pre-loading of previous and next pages
Smoothly scales images to fit the screen (reducing moiré patterns and blurred text)
Display Transformations (Zoom Toggle, Position Adjustment)
Swipe left or right to turn pages
Jump to specific folders within the archive
Preview display for the page selection slider (a thumbnail appears when you hover over it)

Play, pause, and resume playback from a specific point
Adjust playback speed
Loop playback
Move forward or backward by one frame
Track switching (supports video, audio, and subtitles, as well as external audio and subtitles)
- Supported external audio formats: .mp3/.m4a/.wma/.wav/.aac/.adts/.flac/.ogg/.oga/.opus
- Supported external subtitle formats: .srt/.vtt/.ass/.ssa/.txt/.lrc
Preview display on the seek bar (a thumbnail appears when you hover the mouse over the seek bar)
Display Transformations (Flip Horizontally, Rotate, Zoom Toggle, Position Adjustment)
Video Effects (Brightness, Contrast, Saturation)
Background playback
Swipe left or right to move the playback position
Swipe up or down to adjust the volume

Theme switching (OS default / Light / Dark)
Double-click a file in File Explorer to open it in Tsubame Viewer (launch via file association)
Drag and drop files or folders into the app to view them in a list or open them in the viewer
Supports pinning to the Start screen (applies to folders and content displayed in the folder list)
Filter searches within the displayed folder
- You can filter Japanese filenames using Romaji input (uses migemo as the underlying technology)
Search across all folders registered in the app