JSON Viewer for Chrome
Formats raw JSON payloads into a collapsible tree with search, diff comparison, and automatic TypeScript interface generation.
Replaces:
JSON ViewerJSON FormatterJSONVue
Why Developers Switch to OmniDev
Installing a separate browser extension just for json viewer bloats Chrome memory, adds permission risk, and clutters your toolbar. OmniDev integrates JSON Viewer natively alongside 53 other frontend and QA tools.
Formats raw JSON payloads into a collapsible tree with search, diff comparison, and automatic TypeScript interface generation.
Runs inside an isolated Shadow DOM panel so host page styles never break or leak
Zero background RAM overhead when idle — lazy-loaded on demand in milliseconds
Replaces standalone JSON Viewer, JSON Formatter, JSONVue extensions inside a single 54-in-1 toolkit
Shadow-DOM isolated • Zero host-page CSS leakage
STEP 01
Install OmniDev from the Chrome Web Store and open the popup or press your custom shortcut.
STEP 02
Select "JSON Viewer" under the Utilities category (or search "JSON Viewer" in the launcher).
STEP 03
Inspect, capture, or export results directly on the live page — 100% locally in your browser.
See How OmniDev Compares
Detailed side-by-side comparisons against standalone Chrome extensions:
Frequently Asked Questions — JSON Viewer
Is the JSON Viewer tool in OmniDev completely free?
Yes. JSON Viewer and all 54 tools in OmniDev are 100% free to use with no account signup or paywall.
Does JSON Viewer send my webpage data to an external server?
No. JSON Viewer runs locally inside your browser tab. OmniDev is architected local-first and never uploads your DOM, storage, or network payloads to a Jambo backend.
Which standalone Chrome extensions does JSON Viewer replace?
JSON Viewer replaces single-purpose extensions such as JSON Viewer, JSON Formatter, JSONVue, saving browser RAM and reducing extension permission sprawl.
More Utilities Tools in OmniDev
Every tool below is included in the same single Chrome extension install.
Explore All 54 Tools
Text Edit Mode
Make any text on the live webpage directly editable to test copywriting, localization length, and headline overflow.
Asset Explorer (Asset Spy)
Discovers, previews, filters, and bulk-downloads all images, inline SVGs, icons, and CSS background assets on the page.
Tailwind Converter
Click any element on any website to convert its computed CSS styles into clean Tailwind CSS utility classes.
Data Scraper
Point-and-click visual DOM scraper to extract repeating lists, tables, and structured data into CSV or JSON.
Viewport Switcher
Resizes the actual browser window to exact mobile, tablet, and desktop presets and restores your original window size in one click.
Dark Mode Toggle
Force toggle dark, light, dim, or sepia color schemes and `prefers-color-scheme` themes on any website.
Get JSON Viewer + 53 More Tools in 1 Click
Stop cluttering Chrome with dozens of single-purpose extensions. Install OmniDev free and run everything locally.
Install OmniDev for Free