JSON Viewer & Formatter — YAML, .env, SQL

by Extfolio · Developer Tools

Manifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

Auto-format JSON, YAML, Markdown, .env, INI & SQL into a clean syntax-highlighted viewer. Dark mode included.

Users

+15 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#140K

#117K among extensions

Version

1.2.0

updated 29 Jul 2026

Users

monthly, 3 months

Latest, 16 Oct 2026: 25 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 months

Latest, 16 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About JSON Viewer & Formatter — YAML, .env, SQL

Formator automatically turns raw JSON, JSON5, YAML, Markdown, .env, INI, Properties, and SQL into a clean, readable viewer — right in your browser tab. Open an API response, a .json file, a YAML config, a SQL dump, or any supported text format, and Formator replaces the plain text with pretty-printing and syntax highlighting. No redirects. No uploads. Everything stays on your device. FEATURES • Auto-detects JSON, JSON5, YAML, Markdown, .env, INI, Properties, and SQL • Pretty-print with syntax highlighting • Dark and light themes • Adjustable indent size • Sort keys for JSON / JSON5 / YAML • Toggle individual formats on or off in the popup • Works on web pages and local files • Leaves SVG and XML pages untouched HOW TO USE 1. Install Formator 2. Open a supported raw file or API response in Chrome 3. Formator detects the format and shows a clean viewer 4. Use the popup to change theme, indent, sort keys, or disable formats PRIVACY Formator processes page content locally in your browser. Your settings are stored only on your device. We do not collect, sell, or transmit your browsing data.