High-performance JSON viewer for macOS. Open and explore files over 1GB with blazing fast speed.
Handle massive JSON files without breaking a sweat
Powered by simdjson, the world's fastest JSON parser. Parses at CPU limits using SIMD instructions.
Handle files over 1GB with minimal memory footprint. Only loads what you need, when you need it.
Full-text search with regular expression support. Find exactly what you're looking for instantly.
Export to XML, YAML, CSV, or TOML. Convert your JSON data to any format with a single click.
Collapsible tree navigation with lazy-loading children. Expand only what you need, keeping memory usage minimal.
Full raw JSON with syntax highlighting, soft-wrap support, and search highlights that stay accurate as you scroll.
Get up and running in seconds
Grab the latest DMG from GitHub releases
Drag Jasonify to your Applications folder
Double-click any JSON file or drag & drop