Smallpdf
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refern.
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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.
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refern.'s answer:
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.
refern.'s answer:
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.
refern.'s answer:
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.
refern.'s answer:
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.'s answer:
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.
Based on our record, Smallpdf seems to be more popular. It has been mentiond 38 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
According to statistics from smallpdf.com, by 2025, there will be a massive 2.5 trillion PDF documents stored worldwide, and 290 billion new PDF documents will be created every year. - Source: dev.to / 7 months ago
Smallpdf [1] probably deserves a mention here. Not OSS and not self-hosted, but Iโve used it occasionally and it has always worked really well. When I was running an agency, we inherited their first office โ very cool folks. [1] https://smallpdf.com/. - Source: Hacker News / over 2 years ago
And use this one to merge two single-page pdf to make a double side page. Source: over 2 years ago
I don't have Office 365 for the "Get Data" option, nor do I have Adobe Acrobat. I've tried the smallpdf website but it came out a mess, possibly because my original spreadsheet had highlighted rows and lots of text in some of the cells. Source: about 3 years ago
Examples of companies doing this well: - SmallPDF users can convert or compress a limited number of files without an account โ turning users into advocates and customers once paid use cases comes along; - Freshline uses interactive product demos to help users self-educate and understand the value of their features, without a paywall or registration;. Source: over 3 years ago
iLovePDF - Premium online PDF tool set
Pinterest - Pinterest is a visual discovery tool that you can use to find ideas for all your projects and interests.
Adobe Acrobat DC - Make your job easier with Adobe Acrobat DC, the trusted PDF creator. Use Acrobat to convert, edit and sign PDF files at your desk or on the go.
PureRef - The simple way to view and organize your multiple reference images.
Sejda - Split, merge and other powerful PDF tools.
Eagle App - Unify your creative inspiration in one place. Store anything โ inspiring images, design mockups, illustrations, screenshots and more.