Free, Fast, and Privacy First

JSON Tools

Essential tools for JSON data processing and formatting

JSON Beautifier

Format and beautify your JSON with customizable indentation

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JSON Validator

Validate JSON syntax with detailed error messages

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JSON Minifier

Compress JSON by removing whitespace and line breaks

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JSON Examples

Common JSON data structure examples, copy with one click

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Query to JSON

Convert URL query strings to JSON format

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JSON to Query

Convert JSON objects to URL query parameters

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JSON to CSV

Convert JSON arrays to CSV for Excel and data analysis

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JSON Diff

Compare two JSON objects and find all differences

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JSON Path Finder

Search and locate paths to keys or values in JSON

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JSON Schema Generator

Generate JSON Schema from your JSON data automatically

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JSON to TypeScript

Generate TypeScript interfaces from JSON data

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JSON to TOON

Convert JSON to TOON format to reduce LLM tokens

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JSON File Opener

Open and view JSON files online with drag & drop support

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JSON Share

Share JSON data via URL without server storage

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Why Choose JTool.dev?

Lightning Fast

Optimized for speed with instant results

Privacy First

All processing happens in your browser

Completely Free

No registration, no limits, no hidden costs

Always Available

99.9% uptime with reliable performance

Frequently Asked Questions

Yes, all tools on JTool.dev are completely free with no hidden costs, registration requirements, or usage limits. We believe developer tools should be accessible to everyone.
No. All processing happens locally in your browser. Your data never leaves your device, and we don't track, store, or analyze any of the content you work with.
Most tools work entirely in your browser, so once the page loads, you can use them without an internet connection. However, you'll need to be online to initially access the site.
JTool.dev works on all modern browsers including Chrome, Firefox, Safari, and Edge. We recommend using the latest version of your browser for the best experience.
Absolutely! We're constantly working on adding new developer tools based on user feedback and common needs. Check back regularly for updates.
We'd love to hear from you! You can support the project through the 'Buy me a coffee' link, where you can also leave feedback and suggestions.