yViewer is a fast, local-first desktop viewer for 50+ file formats. Instantly open PDFs, Office documents, PSD and RAW images, videos, audio, archives, 3D models, SQLite databases, HDF5 files, code, and large logs—all in one app. Go beyond previewing with PDF annotations, PSD layer inspection, image and audio editing, full-folder search, hierarchical tags, playlists, and an interactive knowledge graph. Built with Tauri, Rust, and React for Windows, macOS, and Linux.
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Maker
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Hi Product Hunt! 👋
I’m Youngmin, the maker of yViewer.
I built yViewer because I was tired of installing and switching between different apps just to inspect files.
A PDF needed one app. A PSD needed another. RAW images, Office documents, archives, 3D models, databases, and large log files all required different tools.
I wanted one fast app where I could simply drop a file and immediately see what was inside.
That idea started as a universal file viewer, but yViewer has gradually grown into a local workspace for files.
Today, it can open more than 50 file extensions, including:
PDF, DOCX, XLSX, PPTX, HWP, and HWPX
PSD, RAW, HEIC, AI, DXF, and common images
Video, audio, and external subtitle files
ZIP, 7Z, TAR, and other archives
OBJ, STL, GLB, FBX, and other 3D models
SQLite, HDF5, CSV, JSON, source code, and large logs
It also includes features such as:
Standard PDF annotations that are saved back into the actual PDF
PSD and PSB layer browsing
Image conversion and audio trimming
Search inside files and across entire folders
Fast, virtualized rendering for large text, CSV, and XLSX files
Windows Explorer Quick Look with the Space key
Hierarchical tags and ordered file lists
An interactive knowledge graph for exploring file relationships
Everything is designed to work locally. Your files do not need to be uploaded to a cloud service.
The newest release, v0.8.0, is an important step for yViewer. It expands the app from a universal viewer into a tool for organizing and navigating a personal file library through tags, playlists, folder grids, and a visual knowledge graph.
I’d love to hear from designers, developers, researchers, photographers, and anyone who regularly works with many different file formats.
What file format or workflow should I improve next?
Thank you for checking out yViewer!
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the knowledge graph feature is genuinely unexpected for a file viewer, like you nailed the balance between everyday previewing and actually giving power users something to dig into.
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Maker
@hayes_lei Thank you for your interest. I implemented this feature because I believed it would be highly practical, given that the file base acts as a large category, even when constructing a knowledge graph. Currently, we are receiving valuable feedback for yViewer through the community and are constantly working to improve its features.
the knowledge graph feature is genuinely unexpected for a file viewer, like you nailed the balance between everyday previewing and actually giving power users something to dig into.
@hayes_lei Thank you for your interest. I implemented this feature because I believed it would be highly practical, given that the file base acts as a large category, even when constructing a knowledge graph. Currently, we are receiving valuable feedback for yViewer through the community and are constantly working to improve its features.