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NextJSON
NextJSON - parse, format, edit and export JSON with ease!
NextJSON is a fast, privacy-first Chrome extension for working with JSON. Paste raw JSON into the popup to instantly parse and format it, or let it auto-format any JSON page in your browser. Explore data in Tree, Raw, Graph, Table, or UI Preview views, run JQ/JSONPath queries, search with regex, and edit inline with undo/redo. Fetch from URLs (custom methods + headers), diff payloads, and export to JSON, CSV, Excel, YAML, or TypeScript. Light & dark themes.
Hey hunters! 👋
I built NextJSON out of a frustration every developer will recognize.
Every JSON extension I tried only worked on JSON pages — open an API response in the browser, and it formats it. But the moment I had raw JSON from a log, a Slack message, or a teammate, there was no way to just paste it in and format it. I'd end up on some random online formatter, pasting data I probably shouldn't.
So I built NextJSON to fix that first: a popup where you paste raw JSON, and it instantly parses and formats it — no page required, nothing leaves your browser.
Then I kept going, and pulled in all the things I was bouncing between different sites and tools for:
- 📋 Paste & parse raw JSON in the popup — or auto-format any JSON page
- 🌳 5 ways to explore: Tree, Raw, Graph, Table, and UI Preview
- 🌐 Fetch from URLs with custom methods & headers (CORS bypass built in) — no Postman needed
- 🔀 Diff two JSON payloads side by side
- 📤 Export to CSV, Excel, YAML, or TypeScript
- ⚡ Query with built-in JQ / JSONPath + regex search
- ✏️ Edit inline with full undo/redo
And one of my favorite parts — a powerful right-click menu on any value:
- 📍 Copy the path to any node — as dot, bracket, JSON Pointer, JSONPath, or JQ
- 🔑 Copy the key, value, or the whole entry instantly
- 🧬 Copy as code — cURL, JavaScript, Python, or a TypeScript interface
- 🎯 Filter to a key or highlight all matching keys across the tree
- ✏️ Edit, add, or delete keys right where you click
- 🔍 Show data type and even search Google for a value
The goal: one tool that does what used to take five — and keeps your data 100% local. No servers, no tracking, no accounts.
It's free, lightweight, and built in pure vanilla JS.
I'd love your feedback — what do you currently jump between tools for that you wish lived in one place? I'm reading every comment today. 🙏
About NextJSON on Product Hunt
“NextJSON - parse, format, edit and export JSON with ease!”
NextJSON was submitted on Product Hunt and earned 0 upvotes and 1 comments, earning #3 Product of the Day. NextJSON is a fast, privacy-first Chrome extension for working with JSON. Paste raw JSON into the popup to instantly parse and format it, or let it auto-format any JSON page in your browser. Explore data in Tree, Raw, Graph, Table, or UI Preview views, run JQ/JSONPath queries, search with regex, and edit inline with undo/redo. Fetch from URLs (custom methods + headers), diff payloads, and export to JSON, CSV, Excel, YAML, or TypeScript. Light & dark themes.
On the analytics side, NextJSON competes within Chrome Extensions, Open Source, Developer Tools and GitHub — topics that collectively have 678.1k followers on Product Hunt. The dashboard above tracks how NextJSON performed against the three products that launched closest to it on the same day.
Who hunted NextJSON?
NextJSON was hunted by sourcelogs. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of NextJSON including community comment highlights and product details, visit the product overview.
sourcelogs