Alternatives

Products that do what NextJSON does

NextJSON - parse, format, edit and export JSON with ease!

1
JSON Hero Chrome extension▲109
A beautiful JSON explorer packed with features
2022
2JB
JSON Browse – Fetch, filter and manipulate your JSON inside the browser▲138
2017 · jsonbrowse.com
3
Next.js 13▲324
Build powerful & dynamic web applications – without limits
2022
4
ezjson▲138
JSON parsing, formatting, sorting and comparing
2024
5JF
JSON For You – Visualize JSON in graph or table views▲211
After two years of improvement, I think it's time to share it with you all. Here’s a quick overview: - Common features include validation, formatting, minification, and more. - Visualize JSON in a graph or table view. - Structured comparison with fallback to text comparison. - Navigate though JSON using JSON pointer. - Supports jq. Would love to hear the community's questions, thoughts and comments!
2024 · github.com
6
RawLens▲3
Advanced Formatting for Messy JSON from Anywhere in Chrome
May 2026 · chromewebstore.google.com
7
OK JSON▲104
The ultimate JSON formatter for your Mac
2023
8
Wibbly▲84
Browser automation API
2021
9
Merge JSON▲5
50+ free JSON tools that run entirely in your browser
Jun 2026 · mergejsonfiles.com
10
PJSON.live▲15
Format, validate & convert json to typescript instantly
Nov 2025
11OJ
Online JSON Browser, Editor▲20
2022 · jsonhero.io
12
JSON Crack Chrome Extension▲3
Turn JSON pages into graphs with one click
Apr 2026 · chromewebstore.google.com
13
JSONOVA▲3
Format and inspect JSON in your current Chrome tab
Jul 2026 · chromewebstore.google.com
14
Format JSON▲2
Paste ugly, copy pretty
May 2026 · format-json.net
15FF
fastjson - Fast JSON Parsing for Go▲20
2018 · github.com
16
exceltojson▲7
JSON Excel Tool | Convert Excel, JSON, CSV & More
Oct 2025
17
JSONKit▲4
47 free JSON tools — all in your browser, zero uploads
Jun 2026 · jsonkit.in
18
JSONSift▲10
Free developer tools that run entirely in your browser
Jun 2026 · jsonsift.com
19
JSON Tools▲2
Free JSON viewer, formatter & converter in your browser
Feb 2026 · json-viewer-ce3.pages.dev
20
Visual JSON Editor▲8
Free, visual JSON editor - Validation, Type Support etc
Nov 2025
21FC
From Chaos – A Chrome extension that turns any webpage into JSON▲7
Hey HN! I wanted to share a chrome extension I built for myself called From Chaos. It's an extension that takes the content of the page and organizes it into structured data. For instance, taking all the restaurants on a "top 10" article and just returning their names. It requires an OpenAI API key that you can set in your settings, and lets you get data back as JSON, YAML, CSV, or plain text. I built it to help in my data-gathering efforts, but wanted to share in case it's useful to someone else as well! It doesn't always return perfect data, but it does save me quite a bit of time.
2023 · chrome.google.com
22ET
Element to LLM – Extension That Turns Runtime DOM into JSON for LLMs▲6
We built a browser extension (Chrome + Firefox) that captures the runtime DOM and exports it as JSON. Not the pre-render source (HTML/CSS/JS, templates, bundles) and not a screenshot — but the live, post-render state the browser is actually displaying: - visibility/hidden, disabled/required - current input values and validation/validationMessage - dataset attributes - trimmed text - stable selector paths Why: LLMs often miss or guess UI state. Screenshots are too opaque, pre-render source is too noisy. A structured snapshot gives reproducible context for debugging…
2025
23
JSON Parser Pro▲3
Free JSON toolkit — format, validate, diff & repair
Jul 2026 · freejsonparser.com
24
TryDevSnip▲4
JSON, JWT & cron tools — pastes stay local
Aug 2026 · trydevsnip.com

Ranked by how close each launch is in meaning, then by votes. Refine with a description →