## Description

An image viewer that allows you to browse images in folders and compressed files like a book. Powerful customization is available.

- Supported image format (bmp, jpg, gif, tiff, png, ico, WIC image)
- Compressed file support (zip, rar, 7z, lzh, cbr, cbz, cb7, …)
- Recursive compressed file support
- PDF support
- Video play support
- Touch operation supported
- Mouse gesture supported
- Key customization, gesture setting
- Movement, rotation, scaling by dragging
- Loupe mode
- Facing mode
- Full screen mode
- Slide show
- Susie plugin support
- Image drop from web browser
- Command extension by scripts

### System Requirements

- Windows 10 64bit or higher

## About ZIP Version

Portable package.

- No installation required, just extract the Zip and run “NeeView.exe”.
- User data such as configuration files are stored in the “Profile” folder.
- Uninstallation is simply a matter of deleting the file.

> Note

> Explorer-related settings use the registry. These settings do not disappear even if the application is deleted, so please turn them off in the settings before deleting.

## Portal Site

- NeeView Portal Site

## Support Contact

Create your issue on GitHub.

- NeeView (GitHub)

Or comment on our blog.

- ヨクアルナニカ

## License

MIT License

Copyright (c) 2016-2025 Ito Mitsuhiro (nee)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

## Third-Party Licenses

### 7-Zip

DLL: 7z.dll

- Copyright (C) 1999-2018 Igor Pavlov.
- URL: 7-Zip
- License: GNU LGPL + BSD 3-clause License + unRAR restriction

### SevenZipSharp

DLL: SevenZipSharpNE.dll

- Copyright (C) Markovtsev Vadim 2009, 2010
- URL: SevenZipSharp - Home
- License: GNU LGPL
- Changed:
  - VS 2015 project: Project Page
  - RAR5 Support: Project Page

### Material design icons

ICON: ic_help_24px, etc…

- Google (C)
- URL: Google Fonts
- License: Apache License 2.0

### WPFDragAndDropSample

Code-in:

- Copyright (c) 2016 takanemu
- URL: WPFDragAndDropSample
- License: MIT License

### PDFium

DLL: pdfium.dll

- Copyright 2014 PDFium Authors. All rights reserved.
- URL: PDFium
- License: 3-Clause BSD License, Apache License 2.0

### PdfiumViewer

DLL: PdfiumViewer.dll

- Copyright (c) Pieter van Ginkel, Bluegrams
- URL: PdfiumViewer
- License: Apache License 2.0

### MagicScaler

DLL: PhotoSauce.MagicScaler.dll

- Copyright (c) 2015-2020 Clinton Ingram and Contributors
- URL: PhotoSauce (GitHub)
- License: MIT License

### .NET corefx

DLL: System.Buffers.dll, etc…

- Copyright (c) .NET Foundation and Contributors
- URL: .NET
- License: MIT License

### Icon Fonts

ICON: pushpin, etc…

- OnlineWebFonts.COM (C)
- URL: Icon Fonts
- License: CC BY 3.0

### VirtualizingWrapPanel

- URL: uhimaniavwp
- License: MS-PL

### SharpVectors

DLL: SharpVectors.*.dll

- Copyright (c) 2010 - 2018, Elinam LLC All rights reserved.
- URL: SharpVectors
- License: 3-Clause BSD License

### ProcessJobObject

Code-in:

- Copyright (c) Microsoft Corporation. All rights reserved.
- URL: VSTest
- License: MIT License

### Microsoft.Xaml.Behaviors.Wpf

DLL: Microsoft.Xaml.Behaviors.dll

- Copyright (c) 2015 Microsoft
- URL: XamlBehaviors for WPF
- License: MIT License

### Jint

DLL: Jint.dll

- Copyright (c) 2013, Sebastien Ros All rights reserved.
- URL: Jint
- License: BSD 2-Clause License

DLL: Esprima.dll

- Copyright (c) Sebastien Ros. All rights reserved.
- URL: Esprima .NET
- License: BSD 3-Clause License

### MetadataExtractor

DLL: MetadataExtractor.dll

- Copyright 2002-2019 Drew Noakes and contributors, 2014 Imazen LLC (initial conversion from Java to C#)
- URL: MetadataExtractor
- License: Apache License 2.0

DLL: XmpCore.dll

- Copyright (c) 2009, Adobe Systems Incorporated All rights reserved.
- Copyright 2015-2017, Yakov Danila, Nathanael Jones, Drew Noakes
- URL: xmp-core-dotnet
- License: BSD 3-Clause License

### MediaInfo

DLL: MediaInfo.dll

- Copyright (c) 2002-2023 MediaArea.net SARL. All rights reserved.
- URL: MediaInfo
- License: BSD-style license

### Vlc.DotNet

- Copyright (c) 2014 ZeBobo5
- URL: Vlc.DotNet
- License: MIT License
- Changed:
  - Custom for NeeView: Project Page

### AnimatedImage

DLL: AnimatedImage.dll, AnimatedImage.Wpf.dll

- Copyright 2019 Thomas Levesque
- URL: AnimatedImage
- URL: WPF Animated GIF
- License: Apache-2.0 license

### NetBeauty 2

- Copyright (C) 2022 nulastudio
- URL: NetBeauty2
- License: MIT License

### kanaxs C# 拡張版 1.0.2

- Copyright (c) 2011, DOBON!
- URL: DoboWiki
- License: New BSD License

## Changelog

### 43.1

(2025-04-07)

##### Fixed

- System: Fixed a bug that window size could not be restored correctly. (#1698)
- System: Fixed a bug in which commands were sometimes not restored correctly on import. (#1699)

### 43.0

(2025-04-05)

##### Welcome Dialogue

- Minimal settings, such as the selection of command presets, are made at initial startup.
- This setting can be changed later.

##### Added

- Language: Korean added.
- System: Display a slideshow playing icon in the title.
- System: Symbolic link supported.
- System: File export from compressed files now also copies Zone.Identifier.
- System: Supports multiple file drops from compressed folders.
- System: Added command line option “–language” to set temporary language.
- System: Added command line option “–clear-registry” to clear registry settings.
- Command: “Cut (Ctrl+X)” command added.
- Command: “Toggle trimming” command added.
- Command: “Overwrite mode” setting added to “Save” command.
- Command: “Scroll + Next/Prev” and “N-type scroll” commands added “Horizontal/Vertical scroll” to the scroll type parameter.
- Theme: Added missing mouse-over theme color setting.
- Book: Page reset setting added when moving to the next book in a page move. (Settings > Move > Reset next book page)
- View: Mouse wheel scrolling implemented. (Settings > Mouse operation > Mouse wheel scroll)
- View: Auto scroll sensitivity setting added. (Settings > Mouse operation > Auto scroll sensitivity)
- View: Added setting of conditions for automatic rotation. (Settings > View operation > Auto rotate policy)
- View: Added “Auto” to “Center of scaling”. The center point will be set to fit within the screen as much as possible. (Settings > View operation > Center of scaling)
- View: Added color setting for the page being loaded. (Settings > Book > Loading page color)
- Panel: Added the ability to select list items by input text. (Settings > Panels > Select item with input text)
- History: Added the ability to display date/time groups in the history panel.
- PageList: “Page number” added to page list name format
- Video: Added video playback speed setting.
- Video: “Default Subtitle” setting added. (Settings > Video > Default Subtitle)
- Video: Noted that libVLC support is for 3.x only.

##### Changed

- System: Changed to .NET 9 based.
- System: Delayed panel generation to speed up startup a bit.
- System: When multiple startups are used, the window state is not changed even if the configuration file is updated in one of them.
- System: Date and time are now inherited in file copying.
- System: Export data selection dialog now inherits the location to be opened.
- System: renaming cursor movement made the same as in Explorer.
- System: added configuration importer is invoked when .nvzip file is specified as a command line argument.
- Command: Apply copy policy setting for compressed files when “Copy to folder”
- Command: “Save” is not available for directories as is.
- Command: “Focus on main view” command is now switchable.
- Settings: Command names for scripts can be found in the Command Parameters dialog.
- Book: Tried to avoid reloading when deleting pages.
- Book: The current page is not restored to the top page when it is deleted.
- Book: History saved when page settings are changed.
- View: Adjusting focus when a book is opened with file drop. Try the bookshelf first, then the focus to the main view.
- View: Support for auto-hiding the autoscroll cursor.
- Filmstrip: Filmstrip allows multiple selections.
- Panels: Compressed file icons and media file icons added to folder icons in PageList and Playlist.
- PageList: File drop to PageList now opens book.

##### Fixed

- System: Flash reduction at start of window display.
- System: Pages can now be loaded even with invalid file dates and times.
- System: Fixed a bug that if the application is terminated while deleting a ZIP entry, it will not be deleted correctly.
- System: Fixed a bug that sometimes caused file names to change when exporting files from compressed files.
- System: Fixed a bug that could cause an error if the destination folder for images did not exist.
- System: Fixed a bug when registering a context menu for a command whose menu hierarchy changes depending on the command parameters.
- System: Reduces file path case differences.
- Command: Fixed a bug in which the “External app” command did not work when a number was specified.
- View: Fixed a bug that sometimes left the page title displayed.
- View: Fixed a bug that caused the vertical and horizontal wheel counters to reset each other.
- View: Fixed a bug in image inversion by mouse dragging.
- Panels: Fixed a bug that panels were sometimes not displayed in the window when trying to display them.
- Navigator: Fixed an issue where the drag position of the navigator thumbnail could shift.
- Script: Fixed a bug that video operations in scripts were not reflected when the video page was refreshed.

Please see here for the previous change log.