XBM to HEIC Converter

Browser-based XBM to HEIC converter for image migration

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Secure Processing

Uploaded XBM images are erased right after conversion, and the resulting HEIC files are purged within 24 hours — your data stays private.

Cloud Conversion

All XBM to HEIC processing runs on Convertio servers — your device stays fast and free while the conversion happens in the cloud.

Modern Format Output

HEIC provides modern Apple image format with superior compression — a significant upgrade over the legacy XBM format for everyday image use and sharing.

How to convert XBM to HEIC

1

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

2

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

3

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

About formats

XBM (X BitMap) is a monochrome (1-bit) image format defined as part of the X Window System, originating at MIT around 1987. XBM files are unique among image formats in being valid C source code: each file defines the image as a static array of unsigned char values containing the packed pixel data, preceded by #define statements specifying the image width, height, and optional hot-spot coordinates (for cursor images). The pixel data is stored in hexadecimal byte values within curly braces, with each bit representing one pixel (1 = foreground, 0 = background) and bits ordered LSB-first within each byte. This design was intentional — XBM images could be #included directly into X Window application source code and compiled into the binary, eliminating the need for external file loading and runtime format parsing. The format was used throughout the X11 ecosystem for cursor shapes, window icons, toolbar buttons, and other small UI elements. One advantage is the source-code nature of the format: XBM files can be edited with a text editor, diff'd and merged in version control, generated by shell scripts, and compiled directly into C programs without any image loading library — a level of toolchain integration that no binary image format can match. The format's role as part of the X Window standard ensures it is understood by every X11-aware toolkit and application. While limited to monochrome and no compression, XBM's simplicity makes it an excellent teaching format for understanding bitmap representations. XBM files are supported by all X11 applications, ImageMagick, GIMP, web browsers (as a legacy web format), and programming environments.
Developer: MIT X Consortium
Initial release: 1987
HEIC (High Efficiency Image Container) is Apple's branded implementation of the HEIF (High Efficiency Image File Format) standard that uses HEVC (H.265) as its image compression codec. Apple adopted HEIC as the default photo format on iPhones and iPads starting with iOS 11 in September 2017, replacing JPEG for newly captured images. HEIC files store photographs compressed with the intra-frame coding mode of the HEVC video codec, which applies sophisticated prediction, transform, and entropy coding techniques that achieve roughly 50% better compression than JPEG at equivalent visual quality. The ISOBMFF (ISO Base Media File Format) container supports multiple images in a single file, enabling Live Photos (a still plus a short video clip), burst sequences, depth maps from dual-camera systems, and HDR gain maps that allow compatible displays to render extended dynamic range. HEIC also stores alpha channels, auxiliary images for computational photography features (portrait mode depth data, semantic segmentation masks), and comprehensive EXIF/XMP metadata. One advantage is storage efficiency: iPhones shooting HEIC use roughly half the storage of equivalent JPEG captures with no visible quality loss, a significant benefit on devices where storage is finite and photos accumulate rapidly. The format's integration with Apple's ecosystem is another key strength — HEIC files are natively supported across macOS, iOS, iPadOS, and iCloud Photos, and automatic JPEG transcoding during file sharing ensures compatibility when sending photos to non-Apple devices. HEIC can also be opened by Windows 10/11 (with codec), GIMP, ImageMagick, and Adobe Lightroom.
Developer: MPEG / Apple
Initial release: 2015

Frequently Asked Questions

Why would I convert XBM to HEIC?

XBM is a monochrome bitmap from the X Window System with limited modern support. Converting to HEIC (modern Apple image format with superior compression) makes your images accessible on any modern platform.

Which software can view HEIC files?

HEIC files can be opened with macOS/iOS natively, Windows 10+ with extension, GIMP, Photoshop. Most of these are available across Windows, macOS, and Linux.

Are my uploaded files kept private?

Completely. Convertio removes uploaded XBM files right after conversion, and the HEIC output is automatically deleted within 24 hours.

Does this converter work on mobile devices?

Yes — Convertio runs entirely in the browser. You can convert XBM to HEIC on phones, tablets, or desktops without installing anything.

Is XBM to HEIC conversion free?

Yes — Convertio offers free XBM to HEIC conversion. Premium options exist for users who need more capacity or faster processing speeds.

Can I convert multiple XBM files to HEIC at once?

Yes — upload several XBM files in one session and Convertio processes them all into HEIC simultaneously, saving you time.