Lumen - Photo Viewer

Fast, beautiful photo browsing

Only for Mac

Free · In‑App Purchases

Mac

New in 1.7: Places maps your trips, Highlights picks your best shots, Clean Up clears copies and blurry photos, and quick edits are built in. Lumen is a fast, focused photo viewer for people who keep photos in folders. Open any folder and browse instantly: a folder tree in the sidebar, a clean grid, a filmstrip, and a distraction-free viewer that mounts each photo on a warm paper mat. No importing, no library lock-in - your folders stay exactly as they are. EVERYTHING, FREE FOR 7 DAYS: - Smart search: describe a photo in your own words, like "people on a beach" or "dinner with friends", and Lumen finds it across all your folders. It runs on an on-device model (a one-time 656 MB download), so your photos never leave your Mac and it works offline. It also finds the words visible inside photos, places and dates. Right-click any photo for Find Similar - Places: see a folder as a trip on a map, stop by stop, with each stop's photos beside it - Highlights: the best 20, 30 or 50 photos of a folder on a day-by-day timeline, ready to play or export - On This Day: photos from today's date in earlier years, on Lumen Home - Select many at once: drag across photos like in Finder, then move, copy, rotate, rate, share or trash them together - Opens 25+ formats: JPEG, PNG, HEIC, WebP, AVIF, JPEG XL, GIF, TIFF, PSD, and RAW (DNG, CR2, NEF, ARW, RAF) - Cull fast: pick, reject, star and colour-label with one key (P, X, 1-5), filter to your picks, then move the rejects to the Trash or copy the keepers to a folder. Marks are saved as XMP sidecars that Lightroom, Capture One and Bridge read, and RAW+JPEG pairs share them - Compare two photos side by side, zoomed together, and keep the better one - Clean Up: finds copies, the weaker shots of each burst, blurry photos and screenshots in a folder, and Best Shot picks the keeper of every burst. Nothing goes until you choose - Folder-first browsing: a folder tree in the sidebar, whole folders of folders in one grid, and four layouts: tiles, squares, whole photos and a sortable list - Edge-to-edge fullscreen, zoom to pixels, rotate and flip - Quick edits: Auto Enhance plus Light, Contrast, Warmth, Colour and Sharpen, crop and auto-straighten, remove background, and edit a photo's date, place and keywords. Save as JPEG, PNG, HEIC or TIFF, or under a file size you choose - Batch convert, resize and rename any number of photos, with optional EXIF and location stripping - Cinematic slideshow: Ken Burns motion, shuffle, speed control - Present mode: chrome-free viewing on AirPlay, HDMI and Sidecar displays - Live Text: select and copy text inside photos - Animated GIF playback with frame stepping - Copy, paste, duplicate, rename, and trash with undo - no Finder round trips - EXIF info panel with histogram and location map - Live folder watching: changes in Finder appear instantly - No account. Your photos never leave your Mac. FREE FOR 7 DAYS, THEN PAY ONCE: Try every feature free for 7 days, with as many folders as you like. Nothing is charged, and the trial never turns into a payment. After that, Lumen Pro is a one-time purchase: pay once, keep it forever, all future updates included. No subscription. Photos opened from Finder always show, with or without Pro. Lumen collects no data of any kind.

  • This app hasn’t received enough ratings or reviews to display an overview.

Lumen 1.7 is the biggest update yet. • Quick edits: Auto plus five simple sliders, crop and auto-straighten, lossless rotate, remove background, and edit a photo's date, place and keywords. • Clean Up finds copies, weaker shots, blurry photos and screenshots in a folder, and Best Shot picks the keeper of every burst. • Places draws a folder as a trip on a map, stop by stop, with each stop's photos beside it. • Highlights picks a folder's best 20, 30 or 50 photos on a day-by-day timeline. Open them, play them or export them. • On This Day on Lumen Home shows photos from today's date in earlier years. • Four grid layouts: tiles, squares, whole photos and a sortable list, with a size slider. • Select many photos at once: drag across them like in Finder, then copy, move to a folder, duplicate, rotate, pick, rate, share or trash them from the new selection bar. • Export to a file size you choose, or to AVIF on Macs that support it. • A calmer layout: Photos, Highlights, Places and Clean Up tabs under each folder, and a simpler sidebar.

The developer, Shiva Prasad Manupadi, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Seller
    Shiva Prasad Manupadi
    Size
    8.6 MB
    Category
    Photo & Video
    Compatibility
    Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2026 Papermint Studio