JSON Formatter
Read API responses as collapsible, syntax-coloured JSON directly in a browser tab.
What’s included for free?
Free open-source Chrome extension with formatting, dark mode and tree navigation. Large numbers follow JavaScript precision limits; other page-modifying extensions may conflict.
Provider information ↗Checked 2026-10-09
Before you use it
BSD-3-Clause software. Preserve copyright, licence and disclaimer notices when redistributing.
Provider terms can change. Check current pricing and usage rights before starting a project.