MOBI to JPS Converter

Convert MOBI ebook pages to stereo JPS — free online

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Stereoscopic Output

MOBI to JPS produces stereo JPEG images suitable for 3D viewers, VR headsets, and stereoscopic displays — bringing ebook visuals into 3D space.

No Downloads Needed

Run the converter directly in your browser. No stereo imaging software is needed for the conversion step — just upload and receive your JPS.

Privacy Maintained

MOBI files are deleted from servers right after conversion. JPS output is automatically removed within 24 hours — your content stays private.

How to convert MOBI to JPS

1

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

2

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

3

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

About formats

MOBI is an ebook format originally developed by Mobipocket SA, a French company founded in 2000 that was later acquired by Amazon in 2005. The format builds on the PalmDOC/PDB container structure, adding support for HTML-based content markup, embedded images, a DRM layer, and a JavaScript subset for limited interactivity. MOBI files use a record-based database architecture inherited from Palm OS, with a header structure containing metadata like title, author, publisher, and language followed by compressed HTML content records. The format became the foundation of Amazon's early Kindle ecosystem — the original AZW format used on first-generation Kindles was essentially MOBI with Amazon's own DRM wrapper. MOBI supports reflowable text with basic formatting including bold, italic, headings, lists, and tables, as well as internal hyperlinks and a built-in table of contents. One advantage is broad device compatibility: MOBI files are recognized by Kindle devices and apps spanning over a decade of hardware, as well as numerous third-party readers on desktop and mobile platforms. The format's lightweight structure is another strength — even long novels produce compact files that load quickly on modest hardware. While Amazon has since moved to the more capable AZW3/KF8 format for new publishing, MOBI remains widely circulated in existing ebook libraries and continues to be produced by conversion tools like Calibre for maximum Kindle compatibility.
Developer: Mobipocket SA
Initial release: 2000
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

Frequently Asked Questions

Why convert MOBI to JPS?

JPS is a stereo JPEG format for 3D viewing — use it to create stereoscopic versions of ebook cover art or illustrations for VR presentations.

What opens JPS files?

StereoPhoto Maker, JPS Viewer, IrfanView with stereo plugins, and 3D-capable displays or VR headsets can render JPS images in stereoscopic 3D.

How does JPS work?

JPS stores two side-by-side JPEG images (left and right eye views) in a single file. Compatible viewers overlay them to produce a 3D effect.

Will ebook text appear in 3D?

The page is rendered as a flat 2D image in stereo format. True depth effects would require additional 3D data beyond a standard ebook page.

Is this conversion free?

Yes — Convertio converts MOBI to JPS at no charge. Premium plans add extended file limits and priority processing for demanding workflows.