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Convert TOML to JSON Online

Convert TOML configuration files to JSON format. Free online parser for pyproject.toml, Cargo.toml, and more.

🔒 100% Client-side⚡ Instant🆓 Free forever

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About Convert TOML to JSON Online
Convert TOML configuration files to JSON format. Free online parser for pyproject.toml, Cargo.toml, and more. This tool is part of the ConvertTOON developer tools suite, providing 40+ free online utilities for developers.
All processing happens entirely in your browser — your data never leaves your device. No sign-up required, no data collection, completely free and private.
💡 Looking for more tools? Visit ConvertTOON.com for JSON to TOON conversion, batch processing, and 40+ developer tools.
How to Convert TOML to JSON
  1. Paste your TOML data in the input panel
  2. The JSON output is generated automatically
  3. Click “Copy” to copy the result to clipboard
  4. Or click “Convert” to manually trigger conversion
TOML files like Cargo.toml and pyproject.toml are widely used in modern development. Converting TOML to JSON enables programmatic access, API integration, and data processing with standard JSON tools.
Frequently Asked Questions
Is my data secure?
Yes. All conversion happens 100% in your browser using JavaScript. No data is ever sent to a server.
Is there a file size limit?
The tool handles files up to several MB comfortably. For very large files, consider using our batch converter or API.
Can I use this programmatically?
Yes! We offer a free REST API at /api/convert/toml-to-json and an NPM package for Node.js integration.
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