BROWSER EXTENSION · CHROME & FIREFOX

The JSON viewer
that answers back.

Open any JSON, YAML, or TOON file and get a virtualized tree, an inferred schema, and a graph. Then hit ⌘K and ask in plain English — jq is written from your schema and run locally on the full file.

✓Your data never leaves the tab — only schema + question
✓Virtualized jq engine — smooth on multi-MB documents
✓Free & open source · local AI free · Pro unlocks hosted AI

Add to Chrome Add to Firefox

● Live — runs locally in your browser

ONE OMNIBOX, THREE MODES

Everything through `⌘K`

The same bar fuzzy-searches, runs raw jq, or takes a plain-English question. Start typing — it figures out which you meant.

Fuzzy search

Jump to any key or value as you type — matches light up across the tree, schema, and graph at once.

products:[128]

name:"Aeron Chair"

price:1299

inStock:true

category:"seating"

logs:[10.2k]

level:"error"

service:"checkout"

latencyMs:240

orders:[1.9k]

total:89.99

status:"shipped"

paidAt:"2026-07-05"

Raw jq

Write a jq filter and run it over the whole file — the result opens in its own view.

Plain English

ask

Ask in plain words — jsonv reads your schema, writes the jq, and runs it locally on the full file.

FOUR VIEWS, ONE OMNIBOX

See your data every way

JSON, YAML, or TOON — the same ⌘K bar opens a tree, an inferred schema, and a graph, so you can switch how you look without leaving the tab.

Tree

Virtualized, collapsible — stays smooth past 500-node and multi-MB documents.

Schema

An inferred structural contract of your data — field names and types, no values.

Graph

See references and nesting as a navigable node graph via the minimap.

Omnibox

Search, jq, and plain-English ask — one bar, always a keystroke away.

HOW IT WORKS

Ask in words. Get an exact answer.

No query language to learn, and your file never leaves the tab. Three steps:

Type a question

Hit ⌘K and ask in plain English — “top 3 users by post count,” “emails of active users.” No jq to learn.

jsonv writes the query

It reads the shape of your data — never the values — and writes the jq for you, shown in an editable bar.

Runs locally, exact

The query runs on your full file right in the tab. You get a precise, inspectable answer — tree, schema, and graph update.

Under the hood

the deep-dive · reading for nerds

PRIVACY BY DEFAULT

AI queries that never upload your data.

With hosted AI, only the schema and your question reach our server — it keeps no copy and logs nothing. Prefer that nothing leaves at all? Run local AI, free, entirely on your device.

↑ LEAVES THE TAB (HOSTED ONLY)

→The inferred schema — field names & types
→Your natural-language question
→Nothing else — no values, no samples, ever

● NEVER LEAVES THE TAB

✓Your actual values — every string and number
✓The full document, at any size
✓With local AI: even the schema stays — zero egress

FREE-LOCAL → PAID-HOSTED

Free forever. Pro when you want it.

FREE

The full viewer + jq, plus local AI (WebLLM / Ollama / Chrome) — on-device, account-free, zero egress.

Add to browser

QDEV PRO

$8/mo

Hosted AI — best jq accuracy, no download, no GPU, identical on both browsers. Unlimited queries.

See full pricing

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StopscrollingJSON

Start asking it.

Install free, keep your data local, and let ⌘K write the jq. Upgrade to hosted AI whenever you want.