ParsebeamJSON viewer

A browser extension

Explore JSON responses,
in your browser.

An API response becomes a document you can browse, search and copy, without leaving your browser.

Install Parsebeam Try the preview
Supported browsers
api.example.dev / users / 42 Extension preview
Your document. Your tools. Your browser.No JSON content is sent to our servers ↗

In your daily work

Read a response.
Know what to do with it.

From a quick inspection to preparing a document, the tools remain in one place.

Find a value

Browse nested objects, search for a key or value, and copy only what matters to you.

Explore JSON

Understand a difference

Compare two documents and identify added, removed or changed values.

See comparison tools

Reuse your data

Work in the playground: conversions, TypeScript types, test data and named snippets.

Discover advanced tools

Local privacy

Your data stays
with you.

Every document is read, searched and transformed on your device. Parsebeam sends none of its content to our servers.

Local processingFrom the document to your tools, without a transfer.

Local processing

Your browser
LOCAL
  1. Open documentresponse.jsonLocal reading only
  2. ParsebeamRead, compare, transform
  3. Local results
    • Explore JSONTree, search, filters
    • Compare responsesDiff between two documents
    • Copy a valueFormatted or minified
No JSON content leaves your browser.Activating or managing a Pro licence can contact our service, never with your document content.
Read our privacy policy ↗

Built for large documents

A complete tree.
A lighter display.

Only useful lines are rendered. Large numbers retain their precision and the original text remains available.

Local processing measurements4 September 2026
100,001 nodesReading and indexing
215 ms
10 MiB of JSON textReading and indexing · 2 nodes
81 ms
8,192 JSON LinesJSON Lines analysis
58 ms
How these measurements are produced

macOS Apple Silicon, Node 24.10.0, measured on 4 September 2026 at 17:36 UTC. Times are rounded data-processing durations, excluding Chrome opening and rendering. Results vary by device and document.

A browser extension

Move from raw.
To readable.

Add Parsebeam to your browser to turn every JSON response into a clear document without leaving your context.

Supported browsers

Chromium browsers are supported. Firefox and Safari will follow.

Install Parsebeam

Available in Chromium browsers.