JSON Formatter
Format, validate, and beautify JSON — perfect for schema markup and API responses.
About this tool
JSON-LD schema, API responses, and config files are easier to debug when properly indented. This formatter validates syntax and beautifies in one step — all local, no upload.
How to use the JSON Formatter
- 1
Paste minified or messy JSON into the input box.
- 2
View formatted output with proper indentation.
- 3
Copy the beautified JSON or fix syntax errors shown.
Validation workflow
Invalid JSON breaks schema markup silently in some CMS plugins. Always validate before pasting into production.
Minify JSON for production APIs to reduce payload size — format only for human editing.
Pro tips
- Watch for trailing commas — invalid in JSON but common in JavaScript.
- Use with schema markup generator for a complete SEO workflow.
Social Media Specs & Character Limits
Optimal text formatting, length guidelines, and parameters for all major platforms:
| Platform | Max Length | Ideal Length | Hashtag Policy |
|---|---|---|---|
| Instagram Feed & Reels | 2,200 chars | 125 - 150 chars | 3 - 5 tags (Recomm.) |
| TikTok Posts | 4,000 chars | 100 - 200 chars | 3 - 5 tags (Ideal) |
| YouTube Description | 5,000 chars | 1,500 chars (SEO) | 3 - 10 tags |
| X / Twitter Post | 280 chars | 100 - 140 chars | 1 - 2 tags |
| LinkedIn Articles & Posts | 3,000 chars | 500 - 1,000 chars | 3 - 5 tags |
Frequently Asked Questions
Does this send JSON to a server?▼
No. All formatting happens locally in your browser.
Can I validate schema markup?▼
Yes. Paste your JSON-LD to check syntax before adding to your site.