JSON Lens
Private, in-browser JSON formatter, validator & visualizer
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JSON Lens is a fast, privacy-first JSON tool that runs entirely in your browser — your data never leaves your device. Paste or drag in any JSON and instantly: • Format, minify, or validate • View as an interactive tree, raw text, or an auto-flattened table • Locate errors down to the exact line & column • Handle large files without freezing (lazy rendering + smart row limiting) No sign-up, no install, no upload. It even works offline.
PH · launched Sep 30, 2026 · 1 upvote (top 69%) · 1 view
Niche: json tools and utilities · 64 launches, 3 in the last 7 days ▼ -40% · Explore this niche →
Category and tags
- Horizontal
- Dev tools
- Developer
- Not AI
- Hobby / open-source project
- Productivity
- Developer Tools
Visit website ↗ Source listing ↗
More like this: all 64 launches in json tools and utilities →
Could you build this?
Yes This is a purely client-side web utility for parsing, formatting, and tree-visualizing JSON using standard JavaScript libraries.
Competitors
Other products that read as similar to this one : 296 launches clear the similarity bar, closest 8 shown.
Attention rank: #227 of 297 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 333 days after the earliest competitor.
- Instant JSON Formatter · ph · 2026-09-27 · 1 upvotes · similarity 0.71
- JSON Formatter & Validator · ph · 2026-09-18 · 1 upvotes · similarity 0.69
- JSON Formatter - Browser Tools · ph · 2026-09-25 · 2 upvotes · similarity 0.68
- JSON Formatter by EchtCosplay · ph · 2026-10-27 · 1 upvotes · similarity 0.66
- JSON Object Validator · ph · 2026-09-24 · 2 upvotes · similarity 0.66
- JSON Formatter & Validator · ph · 2026-10-15 · 1 upvotes · similarity 0.63
- JSONMini · ph · 2026-10-08 · 1 upvotes · similarity 0.62
- Private JSON Formatter · ph · 2026-10-29 · 1 upvotes · similarity 0.60
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.