1
Also covers image tools
Resize pictures in common image formats with ResizeNow, a free online resizing service.
Alternatives
The Best nomacs Alternatives in 2026
24 alternatives4 free · 20 open source
Looking for something like nomacs? Here are 24 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 4 are free or have a free plan and 20 are open source.
nomacs views common image formats such as RAW and PSD across platforms, and includes crop and resize tools.
Top picks at a glance
First suggestionResizeNowResize pictures in common image formats with ResizeNow, a…Open source optionoculanteView and edit images across multiple operating systems with…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | ResizeNow | Free | Not stated | Web |
| 2 | oculante | — | Yes | Windows, macOS, Linux |
| 3 | qimgv | — | Yes | — |
| 4 | ImageResizer | — | Not stated | Android, iOS, Linux |
| 5 | XnView MP | Freemium | Not stated | Windows, macOS, Linux |
| 6 | Photoview | — | Yes | Web, Linux |
| 7 | ImagefanReloaded | — | Yes | Linux, Windows |
| 8 | Flameshot | — | Yes | Linux, macOS, Web |
| 9 | Lap | Free | Yes | Linux, macOS, Windows |
| 10 | FlipFlip | — | Yes | Linux, macOS, Windows |
All nomacs alternatives
2
Also covers image tools and open source
View and edit images across multiple operating systems with oculante, an image viewer and editor.
3
Also covers image editing, image tools, and open source
qimgv provides image viewing with optional support for playing video files.
4
ImageResizer
imageresizer.comAlso covers image tools
Resize, crop, compress, and convert image files with this online image tool.
5
Also covers image tools · same kind of app
XnView MP lets users view, manage, resize, and edit photos on Windows, macOS, and Linux.
6
Also covers image tools and open source · same kind of app
Photoview offers a photo gallery for personal servers that users host themselves.
7
Also covers image editing, image tools, and open source
ImageFan Reloaded is a tabbed image viewer for Linux and Windows, written in C# and targeting .NET 10.
8
Also covers image tools and open source
Capture and save screenshots with Flameshot, a cross-platform tool that includes built-in screenshot features.
9
Also covers image tools and open source
Lap runs as an offline-first desktop photo manager on macOS, Windows, and Linux, for albums and large local libraries.
10
Also covers image tools and open source
FlipFlip displays local images in a randomized slideshow and runs on Mac, Windows, and Linux.
11
Also covers image tools and open source
tev displays HDR images and color profiles across operating systems, including HDR output.
12
Also covers image tools and open source
Oxipng optimizes PNG and APNG files with lossless compression, and offers both a command-line interface and a library.
13
Also covers image tools and open source
Browse images with PhotoQt, an image viewer whose GitHub repository mirrors its main project.
14
ImageGlass
imageglass.orgAlso covers image tools
ImageGlass views more than 90 image formats on Windows, macOS, and Linux.
15
Also covers image tools and open source
QuickView displays JXL, AVIF, WebP, RAW, and QOI images in a Windows application using Direct2D.
16
Also covers image tools and open source
tint recolors images using palettes, with command-line controls for applying a chosen theme palette.
17
Also covers image tools and open source
LibrePhotos provides self-hosted photo management with face recognition, object detection, and semantic search.
18
Also covers image tools and open source
Google Photos Migrate repairs EXIF data and filenames in Takeout archives, handles duplicates, and preserves albums in folders.
19
Also covers image tools and open source
Greenshot provides screenshot capture tools for Windows, according to its project page.
20
Also covers image tools and open source
The odiff project provides an SIMD-first image comparison library with a Node.js API.
21
Also covers image tools and open source
Practical and minimal image viewer designed with minimalism and usability in mind.
22
Also covers image tools and open source
AntiDupl searches image collections for similar or defective pictures, helping users locate duplicates across large sets of files.
23
Also covers image tools and open source
BooruDatasetTagManager edits image datasets for training hypernetworks, embeddings, and LoRA, including booru-style tagged data.
24
Also covers image tools and open source
Damselfly indexes large image collections for search and retrieval using IPTC keywords, folder names, and file names, with object and face detection.
No alternatives match this filter.
Alternatives to similar tools
ImagefanReloaded24 alternativesFlipFlip24 alternativesMigration Tool24 alternativesQuickView24 alternativesodiff24 alternativesAntiDupl24 alternatives
TopicImage Tools · 174 sites Best-of list8 Best Free Image Compression Tools in 2026Best-of listBest Free Screenshot Tools for Clear Captures and Markup Listingnomacs details
What is the best alternative to nomacs?
Based on features, tags and platforms, the closest alternatives to nomacs are ResizeNow, oculante, and qimgv.
Is there a free alternative to nomacs?
Yes. ResizeNow, XnView MP, and Lap are free or offer a free plan.
Are there open-source alternatives to nomacs?
Yes: oculante, qimgv, Photoview, and ImagefanReloaded.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative