# Open sourcing a small tool: Simple Hex Viewer

By [justyy](https://paragraph.com/@justyy-2) · 2025-09-28

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I am open sourcing a small tool to view the file contents in HEX format, this is similar to the **hexdump** command.

![](https://storage.googleapis.com/papyrus_images/cddf281dba9a18b8743c871cfef598e25a8a99cdb04456ce257d4b9948a2e95c.png)

Published tool (100% client based): [https://doctorlai.github.io/hex-viewer/](https://doctorlai.github.io/hex-viewer/)Open source: [https://github.com/DoctorLai/hex-viewer](https://github.com/DoctorLai/hex-viewer)

This is included in the post [From Idea to GitHub Pages: Building Tools with AI and Vibe Coding](https://helloacm.com/from-idea-to-github-pages-building-tools-with-ai-and-vibe-coding/) | [借助AI快速开源了N个小工具](https://justyy.com/archives/68828)

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*Originally published on [justyy](https://paragraph.com/@justyy-2/open-sourcing-a-small-tool-simple-hex-viewer)*