See your JSON as beautiful tables
Paste an API response, drop a file or open a URL. JsonNex turns nested JSON into sortable, editable grids, validates it, converts it to CSV, Excel or YAML and shares a read-only link in one click.
Try it now — no sign-in needed
Paste or drop JSON, keep up to 20 documents in this browser and share a read-only link with anyone.
From raw JSON to clear tables in a second
Built for developers, analysts and support teams who read API responses, configs and exports every day.
A grid that understands nesting
Arrays of objects become real tables with sorting, filtering and paging; nested objects open inline. Double-click any cell to edit, add or delete rows and keys – the JSON code updates instantly.
GridSync
Click a cell, column or row and the code editor jumps to that exact spot – and back again.
Validate with exact errors
Line and column of every syntax error, highlighted in the editor with one-click jump.
ไทย & English
Switch the whole interface instantly; Thai data, search and Excel exports just work.
Cloud library
Folders, tags, full-text search of keys and values, version history and a 30-day trash.
Convert anything
JSON ⇄ CSV, Excel, YAML and XML; format, minify and sort keys.
Private by design
Tools run in your browser. Keycloak sign-in, encrypted storage and PDPA export or erasure any time.
Three steps to clarity
Paste or open
Paste JSON, drop a .json / .csv / .yaml file or open an API URL.
Explore & edit
Grid, tree and text views, search, JSONPath and spreadsheet-style editing.
Export & share
Download CSV or Excel, save to your Library or send a read-only link.
Rent JsonNex monthly or yearly
Start free. Upgrade when you need more space and bigger files. Cancel any time.
Prices in Thai baht including 7% VAT. Tax invoices are issued automatically.
Frequently asked questions
Do I need an account?
No. The grid viewer, formatter, validator and converters run entirely in your browser. Sign in to keep files in your cloud Library, history and versions.
How does billing work?
Choose a plan and pay monthly or yearly by PromptPay or card. Yearly plans cost 10 months. You get a tax invoice for every payment and can cancel any time — the plan stays active until the end of the period.
Can I change or cancel my plan?
Upgrades apply immediately with a prorated credit. Downgrades and cancellations take effect at the end of your current billing period.
Who can see a shared link?
Anyone with the link can read the JSON in grid, tree or text view – nobody can edit it. You can stop sharing at any time.
Which devices are supported?
All modern browsers on desktop, tablet and phone (installable as a PWA). Native iOS and Android apps are coming soon and sync with the same account.