Windows Viewer

Viewer3776win

A lightweight viewer that opens images, comic archives, PDFs, text, video, and audio with a Windows-native foundation. It runs without installation and supports spread view plus fast seek preview.

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Distribution ZIP Package

Highlights

The design prioritizes viewer comfort while keeping broad format support inside a single portable executable.

Spread view and seek preview for comics Built to switch previews quickly while you scrub through pages, including spread layouts.

Handles more than images Open PDFs, text, HTML, RTF, video, and audio with the same viewer flow.

Portable operation Runs without installation and keeps settings plus history inside the `_res` folder.

Supported Formats

Formats are grouped by what works out of the box and what expands with optional helpers.

Images

JPG, PNG, WebP, AVIF, HEIC, SVG, GIF, BMP

Documents

PDF, TXT, LOG, INI, XML, Markdown, HTML, RTF

Media

MP4, MOV, WMV, AVI, MKV, WebM, MP3, WAV, M4A, FLAC, WMA

Screenshots

These demo screens use neutral sample content to show spread view and single-page behavior without relying on third-party material.

Viewer3776win spread view demo — Spread view demo showing the left-right page layout and the bottom seek bar.

Viewer3776win single-page cover demo — Single-page cover demo showing the same viewer flow for one-page content.

Latest Release Notes

The latest information is fetched automatically from GitHub Releases.

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Notes

Archive support RAR / 7z support is not bundled. Place 7z.dll in `_res\bin` when you need those formats.

Video playback Older containers and codecs still depend on OS media support, with ffmpeg.exe used as an optional helper when needed.

Related Information

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