The best alternative to Adobe Photoshop Lightroom Classic is digiKam, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Adobe Photoshop Lightroom Classic and 19 are so hopefully you can find a suitable replacement. Other interesting alternatives to Adobe Photoshop Lightroom Classic are darktable, XnView MP, Hugin and Photon Studio.
digiKam is an advanced digital photo management tool that simplifies importing and organizing photos into albums. It supports various formats including RAW, features tagging, metadata management, duplicate finder, photo editing, sharing, GPS data handling, and has cross-platform compatibility.
Open source non-destructive RAW editor and virtual darkroom with zoomable lighttable, database-driven organization, HDR and EXR support, floating-point workflow, batch exporting, and advanced editing for photography and scientific imaging across platforms.
Works better than Lightroom when your photos are on a NAS
Comprehensive photo management software for viewing, batch converting, editing and resizing images and creating thumbnail sheets.
XnViewMP sure is a fine piece of software, and is in fact my default image viewer. But its editing and sorting capabilities are not as powerful and practical as Lightroom.
With Hugin you can assemble a mosaic of photographs into a complete immersive panorama, stitch any series of overlapping pictures and much more.
Hugin is a panorama sticher (and an excellent one at that), but not a photo manager and editor.
Photon Studio grabs the latest photo taken with Photon Camera on your iPhone, and allows you to easily display it on your iPad, Apple Silicon Mac, or another iPhone connected to an external monitor.
Capture One is a leading raw converter and workflow software which enables photographers to reduce the time and effort required to deliver astounding ready-to-use images with excellent color and detail.
Conversion software for Mac and PC that automatically corrects optical flaws, extends dynamic range, and seamlessly removes digital noise from images.
Advanced photo software offering RAW processing, layer support, retouching, and video editing. Includes cataloging, presets, automatic import, and robust sharing. Supports RAW and JPG editing with post-trial photo products creation while maintaining non-subscription features.
Ansel is an open-source photo-editing software for digital artists, designed to help you achieve your own interpretation of raw digital photographs.
PTGui is panoramic stitching software. Originally developed as a Graphical User Interface for Panorama Tools (hence the name), PTGui now is a full featured photo stitching application.
NeoFinder (formerly known as CDFinder) is a powerful and very fast disk cataloging tool, reading metadata like EXIF, IPTC, JPG, TIFF, MP3, AAC (iTunes).
Professional perspective correction tool fixing lens distortion, horizons, and leaning buildings. Auto lens profiles, content-aware resizing, portrait reshaping, batch processing.
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I have experience using both darktable and Lightroom Classic. In my estimation, darktable is a more powerful tool than Lightroom Classic, except for the new AI features that LR has. However, darktable can be somewhat more cumbersome for novice and casual users.