refern is a local-first desktop app for collecting, organizing, and working with visual references.
The library side gives you folders, hierarchical tags, smart folders, ratings, color labels, color search by hex, image-to-image visual similarity, and more than 14 typed search operators, all running on your machine with no account and no cloud.
The canvas side is a full infinite moodboard with layers, text, shapes, freehand drawing, image filters, and a pin-on-top mode with adjustable transparency and click-through, so it covers the always-on-top reference workflow too.
A relationship graph view maps how your folders, images, canvases, and tags connect. refern never copies your files: a workspace is a normal folder on disk, and it indexes your originals in place.
Infinite Canvas
Arrange references on an infinite spatial canvas with layers, text, and groups.
Canvas Drawing & Shapes
Freehand pen with pressure, eraser, 9 shape tools, and color swatches.
In-App Image Cropping
Crop images in place or save as a new copy, with crop provenance tracked.
Image Filters
Adjust brightness, contrast, saturation, and hue on images and canvas elements.
Never Copies Your Files
References images from your own folders. No proprietary library, no doubled disk.
Relationship Graph View
Navigate your library as a graph of folders, tags, canvases, and linked images.
Visual Similarity Search
Find similar images locally with a built-in feature vector. No uploads, no API cost.
Color Search
Search your library by hex code or dominant color with fast local scoring.
Operator Search
Full-text search with 16 inline operators like type:, tag:, rating:>=3, and color:.
Hierarchical Tags
Parent-child hierarchies, tag groups, linked tags, and macros for bulk tagging.
Smart Folders
Saved multi-condition searches that stay up to date automatically.
Image Grouping
Stack related references into groups shown as fan cards in the grid.
Cross-References & Backlinks
Link any asset to any other and see backlinks across folders and canvases.
Grid Layout Modes
Masonry, justified, and horizontal layouts, set globally or per folder.
Duplicate Detection
Find duplicate images by perceptual hash with an is:duplicate query.
Metadata Management
Rating, color labels, description, notes, source URL, creator, and custom fields.
Directory Metadata Presets
Auto-apply tags and metadata when files are added to a folder.
EXIF / IPTC / XMP Import
Read embedded tags and ratings from images for DAM interoperability.
Import Staging
Drag, drop, or paste images into a staging area with metadata pre-fill and dedup.
Browser Extension
Save images from the web with hover buttons and batch save (Chrome, Firefox, Safari).
Eagle Import
Migrate an existing Eagle library into refern.
Disk Sync
Detect external file changes and reconcile your library with what is on disk.
Timed Study Mode
Full-screen reference practice sessions with configurable duration and count.
Pin Window On Top
Always-on-top mode keeps references visible while you work.
Window Transparency
Adjustable window opacity for overlay reference.
Click-Through Mode
Interact with apps beneath the transparent window.
Desktop Screenshot Tool
Capture your screen directly into your library.
Scales to Millions of Images
Streaming indexer handles 2M+ file libraries with bounded memory.
RAW & HEIC Support
Decodes camera RAW, HEIC, SVG, and standard image formats into thumbnails.
Directory Customization
Custom folder icons, cover images, and backgrounds in the tree and grid.
Local-First & Private
Works fully offline. No account, no telemetry. Files stay on your disk.
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I'm an artist, and too often I was frustrated: I couldn't find the right pictures, I struggled to organize and keep track of my reference images, and I was juggling too many apps when all I wanted to do was draw. I wanted one tool that could do it all, with every component well integrated. So I made refern.
The flow of collecting references for art usually goes like this:
find references and inspiration online -> save and organize those images -> use them on their own or in a moodboard -> reuse them for the next project or share them with others
Normally that means a different app for each step. refern does all of it in one place, with every part built to work together.
Most tools solve only one part of the reference workflow, so artists end up juggling several. refern combines them in one app: Eagle-style organization and search, a PureRef-style infinite canvas, and an Obsidian-style graph of how your references connect. It never copies your files, so it doesn't double your disk usage. It runs on Windows, macOS, and Linux, works fully offline, and is a $30 one-time purchase with no subscription. Built in Rust, it stays fast even on libraries with hundreds of thousands of images.
Individual artists and creative professionals: illustrators, concept artists, digital painters, designers, and photographers. They collect and organize large libraries of visual references, build moodboards, and study from reference. refern is built for solo creators rather than teams, spanning hobbyists and students through working professionals.
refern is a Tauri v2 desktop app with a Rust backend and a React 19 (with React Compiler) plus TypeScript frontend. Data is stored locally in SQLite (rusqlite) with FTS5 full-text search. The interface uses Tailwind CSS, Zustand, and TanStack Query, with motion/react for animation. The infinite canvas and graph view are built on react-three-fiber and three.js. Thumbnailing, perceptual hashing, and color and visual similarity run in Rust with rayon and SIMD.
Refern (refern.app) is a solid referral and networking platform that helps professionals and businesses streamline referrals, connect with trusted contacts, and grow through word-of-mouth. It offers a clean interface and useful tools for managing and tracking referrals, making it a worthwhile choice for those looking to leverage their networks.
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