Download / Windows
JSON viewer for Windows.
Opens a 1 GB file in about 0.3 seconds, where Notepad gives up and VS Code takes 17.
Build c7e9c78 · Jul 2026 ·
Requirements
- Windows 10 or Windows 11, x64. Windows on ARM is not supported.
- Code-signed installer, and it installs per-user, so no administrator rights are needed on a locked-down work machine.
- If SmartScreen warns on a freshly published build, verify it with
Get-FileHashin PowerShell against the checksum above. - The
jbCLI is bundled inside the app, and works in PowerShell and cmd. See the CLI reference. - Clipboard shortcut: Win + J opens whatever JSON you last copied.
Free for personal use · commercial seats are $89 per year · see the benchmarks or the GUI guide.