Show HN: S3FileViewer – A lightweight browser interface to preview S3 files

Category: devtools

Tags: s3-file-viewer, sql-query-tool, go-web-app

Score: 5.5/10 (Innovation: 5, Technical: 6, Documentation: 6, Utility: 5)

S3FileViewer is a lightweight web interface built with Go, HTMX, and DuckDB that lets users browse S3 buckets, preview CSV and text files, and run SQL queries against tabular data. Its combination of S3 browsing with embedded SQL analytics provides a practical tool for quick data exploration without heavy infrastructure.

Target audience: backend devs, data engineers

Repository: https://github.com/cgopalan/s3fileviewer · Go

View on Hacker News