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CUR to FB2 Converter

Transform CUR to FB2 in your browser instantly

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Pixel-Perfect Output

CUR cursor images are small and detailed. The conversion to FB2 preserves every pixel at the exact original dimensions.

Format Versatility

Beyond FB2, Convertio supports dozens of output formats for your CUR files. One tool handles all your conversion needs.

Browser-Based Tool

No software to install — open your browser, upload CUR, and download FB2. Works on any operating system with internet access.

How to convert CUR to FB2

1

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

2

Choose fb2 or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your fb2 file right afterwards

About formats

CUR is the cursor image format for Microsoft Windows, structurally nearly identical to the ICO (icon) format but with the addition of a hotspot coordinate that identifies the precise pixel position where mouse clicks register. Introduced with early Windows versions, CUR files use the same container structure as ICO: a directory header listing one or more image entries, each specifying dimensions and color depth, followed by the pixel data for each variant. Like ICO, a single CUR file can contain multiple images at different sizes and color depths, allowing Windows to select the most appropriate cursor image for the current display resolution and color settings. Image data within CUR files can be stored as BMP pixel arrays (for legacy compatibility) or as embedded PNG images (supported since Windows Vista) for alpha-blended cursors with smooth edges. The hotspot coordinate — the distinguishing feature separating CUR from ICO — is stored as an X,Y pair in the directory entry header, typically pointing to the tip of an arrow or the center of a crosshair. One advantage is multi-resolution packaging: a single CUR file provides appropriate cursor imagery across display densities from standard DPI to high-DPI screens. Native Windows integration is another strength — CUR files are loaded directly by the operating system for mouse cursor display without any third-party software. CUR files are used by application developers and theme creators to customize the pointing experience across Windows environments.
Developer: Microsoft
Initial release: 1987
FB2 (FictionBook) is an XML-based ebook format created by Dmitry Gribov in 2004, designed to provide a clean semantic description of a book's content independent of its visual presentation. Unlike page-layout formats, FB2 encodes structure — title, authors, chapters, annotations, genres, epigraphs, poems, footnotes, and binary attachments (typically cover images) — within a single well-formed XML document. This structural approach means reading applications have full control over rendering, allowing the same file to adapt perfectly to a small phone screen or a large e-ink reader. FB2 became enormously popular in Russia and Eastern Europe, serving as the dominant format on major Russian digital libraries and ebook distribution platforms. One significant advantage is metadata richness: the format's schema mandates detailed bibliographic information including author, translator, series position, publication date, and genre classification, making library management and discovery straightforward. The plain-text XML foundation is another strength — FB2 files are human-readable, easy to validate, and simple to transform using standard XML tools like XSLT. The format specification is freely available on GitHub, and a wide ecosystem of readers, editors, and converters supports it across all major platforms, from desktop applications like Calibre to dedicated e-readers with native FB2 rendering.
Developer: Dmitry Gribov
Initial release: 2004

Frequently Asked Questions

Why convert CUR to FB2?

CUR files contain cursor artwork locked in a Windows-specific format — converting to FB2 lets you reuse that art in designs.

What programs open FB2 files?

FBReader, Calibre, CoolReader, Moon+ Reader, and many Russian/Eastern European e-reading applications

Does the conversion preserve transparency?

FB2 does not support transparency natively. Alpha channel data from CUR will be flattened against a solid background during conversion.

How many CUR files can I convert at once?

You can upload multiple CUR files in one session. Each converts to FB2 separately, and all results are downloadable upon completion.

Is CUR to FB2 conversion free on Convertio?

Standard CUR to FB2 conversions are free. Premium plans add batch processing, larger uploads, and priority conversion speed for heavy workflows.

Does CUR to FB2 conversion preserve quality?

The converter optimizes for best visual fidelity. FB2 may apply compression