JSLON

A blazing fast, memory-efficient GUI viewer for large JSONL, CSV and TSV files.

Features

• Multi-platform - You just need Rust to build the binary.
• Virtualized rendering - Only visible rows are processed, making it efficient for gigabyte-sized files
• Memory-mapped file access - Files are loaded instantly regardless of size
• Smart search - Fast keyword search with term highlighting and navigation
• Collapsible rows - Expand only the entries you care about
• Dark/Light mode - Choose your preferred theme

Requirements

• Rust 1.60 or later
• Cargo

Building from Source

Quick Start

# Clone the repository
git https://github.com/skirdey-inflection/jslon
cd jslon

# Build in debug mode
cargo build --release

# Run the application
cargo run --release

Build Release Version

cargo build --release

The executable will be available at target/release/jslon (or jslon.exe on Windows).

Manual Execution

If you prefer not to create a bundle, you can run the release build directly:

macOS/Linux

./target/release/jslon

Windows

.\target\release\jslon.exe