Voxelis: DICOM Viewer
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Description
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.