JSON Formatter & Validator
Beautify, validate and minify JSON. Free, no signup
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Read the full description
Paste messy or minified JSON and get clean, readable output instantly. The validator finds errors and shows the exact line and column, with the problem highlighted, so you can fix it fast. Choose 2 spaces, 4 spaces, tabs or minified output, and sort keys alphabetically. Syntax highlighting, expand/collapse, and escape/unescape for strings are built in. See size, line count, objects, arrays and properties, then copy or download. Your work is saved in your browser. No signup.
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More like this: all 62 launches in json tools and utilities →
PH · launched Nov 2, 2026 · 2 upvotes (top 17%)
- Horizontal
- Dev tools
- Developer
- Not AI
- Productivity
- Developer Tools
Similar launches
See all 180 similar launches →Could you build this?
Yes A JSON beautifier and validator with line and column error reporting is a small client-side tool that vibe coding handles easily.
Competitors
Other products that read as similar to this one : 180 launches clear the similarity bar, closest 8 shown.
Attention rank: #15 of 181 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 366 days after the earliest competitor.
- JSON Formatter - Browser Tools · ph · 2026-09-25 · 2 upvotes · similarity 0.72
- JSONMini · ph · 2026-10-08 · 1 upvotes · similarity 0.69
- JSON Formatter by EchtCosplay · ph · 2026-10-27 · 1 upvotes · similarity 0.69
- Instant JSON Formatter · ph · 2026-09-27 · 1 upvotes · similarity 0.68
- JSON Object Validator · ph · 2026-09-24 · 2 upvotes · similarity 0.64
- json-toolkit · github · 2026-09-29 · 37 upvotes · similarity 0.63
- jsonfix · github · 2026-10-20 · 46 upvotes · similarity 0.61
- PasteKit · ph · 2026-10-18 · 88 upvotes · similarity 0.61