JSONLogs Viewer

A lightweight, browser-based viewer for structured .jsonl log files. Built with React, TypeScript, Tailwind CSS, and Vite. Installable as a PWA.

Features

• Drag & drop or paste .jsonl log files to view them
• Filter logs by level (error, warn, info, debug, trace)
• Full-text search across log entries
• Sortable columns (time, level)
• Expandable rows with JSON detail view and stack trace rendering
• Dark / light theme toggle
• Logs persist in sessionStorage across reloads
• Installable as a Progressive Web App

Getting Started

# Install dependencies
bun install

# Start dev server
bun dev

# Build for production
bun run bundle

Scripts

Command	Description
bun dev	Start Vite dev server
bun bundle.	Type-check & build for prod
bun preview.	Preview production build
bun lint.	Lint with oxlint
bun fmt.	Format with oxfmt

Tech Stack

• React 19 with React Compiler
• Vite 8
• Tailwind CSS 4
• Base UI
• Lucide Icons
• vite-plugin-pwa