Voxelis: DICOM Viewer

Educational and review use only. Voxelis is not FDA-cleared and must not be used for primary diagnosis.

Open a CT study instantly — no import needed. A real public demo is bundled inside.

Voxelis is a private, local-first DICOM viewer for reviewing CT, MR, and other medical imaging studies on iPhone and iPad. Built for the moment a colleague AirDrops you a study and you just want to glance at it.

WHAT'S NEW IN 1.4
Multi-frame DICOMs scrub through every frame instead of stopping at frame 0. Enhanced multi-frame CT and MR studies under 1GB now load. JPEG and JPEG 2000 series show a partial-compatibility warning instead of failing silently. Plus a compact thumbnail rail, zoom percentage in the canvas overlay, and a cleaner WW/WL toolbar.

NEW
• Multi-frame DICOM correctness. ZIP imports of cine ultrasound, nuclear medicine, and enhanced multi-frame CT/MR now play every frame. Pre-v1.4, files sharing a series UID with internal frame counts were capped at one visible frame each.
• Enhanced multi-frame import. Studies with a single PixelData element above 256MB (up to the 1GB file ceiling) now parse — the previous element-size guard rejected legitimate enhanced CT/MR exports.
• Partial-compatibility warning. Series containing JPEG, JPEG 2000, or RLE frames now show an honest in-canvas warning capsule instead of silently rendering blank frames.
• Compact thumbnail rail on iPad. Tightened from 220pt wide to 92pt, with calm 2pt accent selection and 0.6 opacity dimming on unselected cells — no more competing with the medical image's brightness.
• Zoom percentage in the canvas overlay. The frame counter capsule now also shows the zoom level whenever it isn't 100%.
• Truncated DICOM series descriptions. Long machine strings like "MEMPRAGE_4e_p2_1mm_iso_RMS" no longer overflow the caption pill — full string still in the inspector pane.
• WW and WL sliders visually distinct. Window Width is accent-color; Window Level is orange. No more glance-down confusion.

FEATURES
• Bundled public CT demo — open a real study the moment you launch
• ZIP archive import from Files, AirDrop, Mail, and Share Sheet
• Modality-aware WW/WL preset menu (13 presets from the OsiriX desktop standard)
• Multi-frame series playback with smooth scrubbing
• Grayscale windowing — adjust brightness and contrast for any tissue type
• Invert, zoom, rotation, and frame navigation tools
• Grouped series browser — every study and series in one place
• Local-first — all processing on-device, no cloud, no account required
• iPad and iPhone support, designed for iOS 26

PRIVACY
No data leaves your device. No account. No sign-in. No analytics. No tracking. Your studies stay on your iPhone or iPad — full stop.

A NOTE FROM THE DEVELOPER
Voxelis is a single-developer project, made for the on-call moment when you just need to look at a scan on your phone. Feedback, bug reports, and feature requests are genuinely read and acted on — reach out through the support link on the App Store page.

Reminder: Voxelis is for educational and review use only and is not intended for clinical diagnosis.