JPS to SNB Converter

Online JPS to SNB ebook converter — quick and free

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Digital Publishing

Convert your JPS images into SNB ebook format — ready for distribution on e-readers, tablets, and digital bookstores worldwide.

Server-Side Power

The JPS to SNB conversion runs on remote servers, not your device. Even large images process quickly without slowing down your computer.

Browser-Based

No software to install — the converter runs entirely in your web browser. Access it from any computer or mobile device connected to the internet.

How to convert JPS to SNB

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose snb or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your snb file right afterwards

About formats

JPS (JPEG Stereo) is a stereoscopic 3D image format that stores a left-eye and right-eye view pair within a single JPEG-compressed file, developed by VRex, Inc. around 1997 for use with stereoscopic displays and viewers. A JPS file is technically a standard JPEG file containing a side-by-side stereo pair — the left and right perspective images are placed horizontally adjacent within a single frame, with the full image width being twice the individual view width. The file uses standard JPEG compression and can be opened by any JPEG-compatible viewer (which will show the side-by-side pair as a single wide image), but stereo-aware applications parse the image into its left and right components for proper 3D presentation. JPS files can be viewed with dedicated stereoscopic software, anaglyph viewers (generating red-cyan images for colored glasses), autostereoscopic displays, VR headsets, and hardware like NVIDIA 3D Vision or passive 3D monitors. The format gained renewed interest with the consumer 3D photography boom of the late 2000s and early 2010s, when cameras like the Fujifilm FinePix Real 3D W1/W3 captured stereo pairs natively. One advantage is backward compatibility: because JPS uses standard JPEG encoding, the files work with existing JPEG infrastructure — they can be transmitted, stored, thumbnailed, and even viewed (as flat side-by-side images) without any special software. The format's simplicity is another practical strength — no specialized container or codec is required, and any tool that can crop and display JPEG images can extract individual views. JPS files are supported by StereoPhoto Maker, ImageMagick, and various 3D photo viewers.
Developer: VRex, Inc.
Initial release: 1997
SNB is a proprietary ebook format developed by Shanghai Nutshell Electronics, a subsidiary of Shanda Interactive Entertainment, for the Bambook e-reader launched in August 2010. The format is structurally based on EPUB principles, packaging HTML content, CSS styling, images, and metadata within a compressed archive, but uses a proprietary container that restricts native playback to Bambook devices and associated software. Shanda designed the Bambook and its SNB ecosystem as an integrated reading platform tied to the Cloudary literature portal (later rebranded as China Literature), one of China's largest online publishing networks hosting millions of web novels and serialized fiction. The format supported reflowable text, chapter navigation, bookmarks, and basic typographic controls suited to Chinese-language content display. One advantage was tight integration with Shanda's massive content catalog, providing readers instant access to an enormous library of Chinese-language literature directly through the device. The Bambook was initially offered at a heavily subsidized price point, using the content ecosystem to drive revenue — a model that preceded similar strategies by other e-reader manufacturers. While the Bambook hardware line was eventually discontinued as the Chinese market shifted toward tablet-based reading apps, SNB files from that era can be converted to standard formats using tools like Calibre with appropriate plugins. The format represents an interesting case study in platform-specific ebook ecosystems within the Chinese digital publishing landscape.
Initial release: August 2010

Frequently Asked Questions

Why convert JPS to SNB?

Moving JPS to SNB produces an ebook-ready publication. The format is designed for digital reading devices and supports structured content layout.

Which apps support SNB?

Applications like Calibre, Shanda Bambook all support SNB. Check your system — a compatible viewer may already be installed.

Is the conversion lossless?

The conversion retains image quality within the capabilities of SNB. Any format-specific limitations are inherent to the target, not the conversion process.

What platforms does this converter support?

The converter works on any device with a browser — Windows, macOS, Linux, iOS, and Android. No app installation needed — everything runs in the cloud.

Is JPS to SNB conversion free?

Standard conversions are free on Convertio. For larger volumes or bigger images, premium plans offer expanded limits and faster processing queues.

Is my data safe during conversion?

Uploaded images are deleted right after conversion, and output files are removed within 24 hours. Your data stays private throughout the process.