Viewer GitHub Repositories (2026) · Open Source Tools

High performance 3D Gaussian Splatting (3DGS) renderer for Three.js. WebGPU and WebGL2. Supports PLY, SPZ, Streaming LOD including SOG, RAD and LCC2.

An open-source, web-based viewer for zoomable images, implemented in pure JavaScript.

Free EXR file viewer. DJV is a free, open-source high bit-depth image sequence player built for professional film, VFX & animation workflows. Use it for frame-accurate dailies, shot review, and A/B comparisons. Available for Linux, macOS, and Windows.

A fast and powerful log viewer and processor that converts JSON logs or logfmt logs into a clear human-readable format.

Unreal Engine Archives Explorer

A fast and simple image viewer / editor for many operating systems

A lightweight, easy-to-use, and efficient library for processing and rendering 3D data (C++ & Python)

MSLA/DLP, file analysis, calibration, repair, conversion and manipulation

MulimgViewer is a multi-image viewer that can open multiple images in one interface, which is convenient for image comparison and image stitching.

FerrumPix is a desktop photo management and editing application for Linux, Windows and macOS.

An open-source, web-based 'multi-up' viewer that supports zoom-pan-rotate functionality, ability to display/compare simple images, and images with annotations.

MultiVNC is a cross-platform SSH-enabled VNC viewer. The desktop client runs on Unix, Mac OS X and Windows. There also is an Android client.

Fast, lightweight markdown viewer & reader for Windows. Native C++ with Direct2D — <5MB binary, <100ms startup, no Electron. 10 themes, TOC, search, edit mode.

DICOM Viewer in Nextcloud

WinHelp file viewer

Structural overview of a repository: every non-ignored file as a read-only panel on a zoomable canvas

Quba is a viewer for electronic invoices

DICOM Web Viewer: open source zero footprint medical image library.