Fast folder browsing
Preview-first navigation preloads nearby images with an adaptive preview runway and persistent SSD caching, then loads full quality for the current image.
Fast and fluid photo viewer with a high-precision SDR, HDR and wide-gamut color pipeline, AI-powered features, and advanced culling and comparison.
N1 Viewer
Fast Windows photo app, image viewer and local AI workflow.
N1 Viewer is a fast native Windows photo and image viewer app built for serious local browsing, culling, inspection and comparison. It combines true Windows Explorer order, direct GPU / iGPU selection, high-precision HDR and wide-gamut output, advanced color management, batch tag and metadata editing, and local AI tools for semantic search, Find Similar and reference-image search, Advanced Auto Tags, AI-generated titles and descriptions, metadata suggestions and OCR text search.
Windows 11 / 10Local AI EngineRAW + HEIC / HIF + AVIFHDR + 10-bit WCGCulling + Compare
Explorer orderBrowse folders in the same order you expect from Windows.
Direct render controlChoose GPU, iGPU or CPU for performance, efficiency or compatibility.
HDR & Wide GamutHigh-precision color-managed SDR, WCG and HDR presentation.
Cull & compareRatings, Pick / Reject, Gallery and side-by-side inspection in one workflow.
01
Built around the image
Fast where it matters.
N1 keeps browsing close to the Windows file system while preloading what you are most likely to view next.
Explorer-native workflow
True Windows Explorer order, filename and folder search, filters, multi-select, copy and undoable delete without leaving the image workflow.
Choose the render path
Switch directly between GPU, iGPU and CPU paths to prioritize performance, efficiency or compatibility on the machine in front of you.
Inspect without friction
Fullscreen, Clean View, adaptive fit-to-window behavior and fast 100% inspection keep detail checking immediate.
Batch photo tags & metadata
Use N1 as a batch tag editor and metadata workflow alongside ratings, labels, multi-select and culling tools for large local image sets.
Batch metadata editing →Flexible interface
Modern or Classic UI, touch and pen gestures, multi-monitor workflows, plus Photoshop and Lightroom handoff.
02
Local AI Engine
Search, understand and organize images locally.
Use semantic and visual search, Find Similar, reference-image search, Advanced Auto Tags, AI-generated titles and descriptions, metadata suggestions and OCR text search without turning the image workflow into a cloud catalog.
⌕Semantic & visual searchSearch by meaning, find similar images, or use a reference image to discover related photos.
#Advanced Auto TagsGenerate local tags plus suggested titles, descriptions and metadata for selected images.
AaOCR text searchFind photos by text visible inside the image, not only by filename or folder.
GPUGPU / iGPU / CPU accelerationRun the AI workflow locally with the available acceleration path on the machine.
Local-first AI workflow
AI features stay close to the viewer.
Search and metadata tools work inside the same local image workflow as Gallery, Filmstrip, culling and comparison.
Advanced Auto TagsEditable titles, descriptions and keyword suggestionsLocal AIGPU / iGPU / CPU acceleration
Explore AI photo search →Stock photo workflow →
Duplicate SearchFind exact duplicates and near-duplicates, including visually similar copies with different filenames, formats, resolutions or compression.
Duplicate photo finder →
03
Filmstrip · Gallery · Culling · Compare
Photo culling and side-by-side comparison.
Cull photo folders quickly, compare images side by side, and keep ratings and selection inside the same viewer. Quick 2-image comparison is available in the main viewer, while Gallery supports 2- and 4-image comparison.
- ✓ Gallery File Explorer & Folder Tree
- ✓ Adjustable Filmstrip and Gallery thumbnails
- ✓ Ratings, Pick / Reject, labels and auto-advance
- ✓ Filename search, folder search and Explorer-order persistence
- ✓ Touch / Pen gestures and multi-monitor support
04
Color Management & HDR Pipeline
Color-managed SDR, 10-bit Wide Gamut and HDR.
Use the fast Standard path for everyday color-managed viewing, or the Advanced path for wide-gamut, 10/12/16-bit source handling and precision-sensitive HDR workflows.
Fast color-managed viewing
Color-managed SDR / HDR viewing with sRGB and common ICC-managed color profiles.
Extended Wide Gamut / HDR
Adobe RGB, Display P3 / DCI-P3, ProPhoto RGB, Rec.2020, Rec.2100 PQ / HLG, HDR10 / PQ, linear scRGB and custom embedded ICC profiles.
SDR / Wide GamutsRGB · Adobe RGB · Display P3 · DCI-P3 · ProPhoto RGB · Rec.2020
Embedded ICC RGB profiles are preserved through the managed path.
HDRRec.2100 PQ / HLG · HDR10 / PQ · linear scRGB
OpenEXR scene-linear HDR, Radiance HDR and supported HDR JPEG XL feed the HDR presentation pipeline.
Precision8 / 10 / 12 / 16-bit · HALF / FLOAT · FP16 / scRGB
Selective FP32 processing is used for precision-sensitive Advanced transforms where supported.
Metadata & OutputICC · CICP · PQ / HLG · chromaticities · primaries
Color-managed SDR, Wide Gamut and HDR output through scRGB / Windows Advanced Color.
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Formats
RAW, HEIC / HEIF / HIF, AVIF, JPEG XL, EXR and everyday image formats.
N1 keeps common photos, camera RAWs and modern HDR formats inside the same local browsing workflow, including Nikon NEF HE / HE* and NRW, Pentax PEF, Hasselblad 3FR, HIF and RAF support.
Images
JPEG / JPG / JPE / JFIFHEIC / HEIF / HIFAVIFJPEG XR / JXR / WDPPNGWebPTIFF / TIFBMPGIFPSDOpenEXRRadiance HDRJPEG XL
RAW
CR2CR3DNGNEFNEF HE / HE*NRWARWRAFORFRW2PEF3FR
EXR
OpenEXR
Common single-part OpenEXR images with HALF / FLOAT RGB, RGBA and grayscale channels, scanline and supported tiled images, plus NONE / RLE / ZIP / ZIPS / PIZ compression.
Chromaticities → linear scRGB · Learn moreHDR
Radiance HDR
Native RGBE / XYZE decoding with raw, legacy RLE and modern RLE decoding, standard orientations and embedded or default primaries.
Primaries → linear scRGBJXL
JPEG XL
Support through Microsoft JPEG XL Image Extension / WIC where available, including validated 16-bit floating-point HDR Rec.2020 / PQ decoding.
HDR → linear scRGB / FP16 · Learn moreAVIF
AVIF HDR
HDR AVIF with Rec.2100 PQ / HLG and CICP signaling through supported Windows AV1 and imaging paths, with ICC color management.
Windows imaging path · Learn moreHEIC
HEIC / HEIF / HIF
Browse HEIC, HEIF and HIF photos on Windows inside the same Filmstrip, Gallery, comparison and color-managed workflow.
HEIC photo viewer · Learn moreRAW
Camera RAW
CR2, CR3, DNG, NEF (including HE / HE*), NRW, ARW, RAF, ORF, RW2, PEF and 3FR integrated with the same browsing, comparison and culling workflow.
RAW workflow · Learn moreICC
Color metadata
ICC, CICP, PQ / HLG signaling, Rec.2100 metadata, OpenEXR chromaticities and Radiance primaries.
Color management · Learn moreFor best compatibility, install HEIF Image Extensions, HEVC Video Extensions, JPEG XL Image Extension and Raw Image Extension from Microsoft Store.
Guides & workflows
Windows photo viewing for everyday and specialist workflows.
Explore focused guides for Windows photo viewing, local AI search and tagging, duplicate finding, OCR, RAW and modern formats, HDR and color management, photo culling, comparison and batch metadata work.
AI photo search & Find SimilarAI photo tagging & metadataN1 Viewer for stock photographersOCR photo searchDuplicate photo finderFast photo viewerWindows Photo Viewer alternativeHDR photo viewer10-bit wide-gamut viewerRAW photo viewerHEIC / HEIF / HIF viewerJPEG XL / JXL viewerOpenEXR / EXR viewerAVIF / HDR AVIF viewerPhoto culling & comparisonBatch tag & metadata editorColor-managed image viewerSupported image formats
Windows
Get N1 Viewer.
Installation and updates are currently provided through Microsoft Store.