Click the upload area above or drag and drop your .toml file. Enconvert accepts TOML configuration files up to 5 MB on the free tier. Your file is processed securely and deleted after conversion.
Convert TOML to JSON Online - Free Config Format Conversion
Convert TOML to JSON free with Enconvert. Transform Cargo.toml and other TOML configs into JSON for API consumption and tooling. No sign-up required. Developer API available.
Click to upload or drag and drop
Accepts TOML
Result
How to Convert TOML to JSON
1
Upload Your TOML File
2
Convert TOML to JSON
Enconvert parses your TOML and converts it to properly formatted JSON with correct data typing. Section headers become nested objects, and TOML-specific types (dates, times) are serialized as strings.
3
Download Your JSON File
Your converted JSON is ready instantly. Click the download button to save the file. Download links stay active for 1 hour on the free tier.
Why Convert TOML to JSON?
TOML is popular for human-edited configuration, but many programming tools, APIs, and automation workflows require JSON. Converting TOML to JSON makes configuration data consumable by any system.
Programmatic consumption. JSON is natively supported by every programming language. Converting Cargo.toml, pyproject.toml, or any TOML configuration to JSON allows scripts, APIs, and tools to parse the configuration without a TOML parser library.
API and web service compatibility. REST APIs, webhook payloads, and web services communicate in JSON. If configuration data from a TOML file needs to be sent to an API endpoint, converting to JSON is the required step.
Cross-tool interoperability. Some CI/CD systems, cloud platforms, and automation tools accept only JSON configuration. Converting TOML to JSON enables using the same configuration data across different tooling ecosystems.
When to keep TOML instead: If the file is human-edited configuration (Cargo.toml, pyproject.toml), keep it as TOML for readability and comment support. Only convert to JSON when the data needs to be consumed programmatically by systems that do not parse TOML.
Enconvert converts TOML to JSON server-side. The free tier supports 100 conversions per month with no sign-up required.
TOML vs JSON
| Feature | TOML | JSON |
|---|---|---|
| Comments | Supported (# comments) | Not supported |
| Human Readability | High | Moderate |
| Date/Time Types | Native date, time, datetime | Stored as strings |
| Language Support | Requires TOML parser library | Native in every language |
| API Compatibility | Not standard for APIs | Standard REST API format |
| Ecosystem | Rust, Go, Python, Hugo | Universal (JavaScript, Python, Java, etc.) |
| Null Support | No null type | Supports null |
| Best For | Human-edited config files | APIs, data interchange, automation |
Frequently Asked Questions
No. JSON does not support comments. All TOML comments are stripped during conversion. Only the data values are preserved in the JSON output. If you need to retain comments, keep the original TOML file as the source of truth.
TOML has native date, time, and datetime types. These are converted to ISO 8601 string representations in JSON (e.g., "2026-04-11" for a date, "2026-04-11T14:30:00Z" for a datetime). JSON does not have native date types, so string serialization is the standard approach.
Yes. TOML section headers ([section]) become nested JSON objects. Inline tables and arrays of tables are also correctly mapped to their JSON equivalents.
The free tier accepts TOML files up to 5 MB with 100 conversions per month — no sign-up or credit card required. The Starter plan ($19/mo) supports 2,000 conversions with 15 MB file limits, the Pro plan ($49/mo) supports 10,000 conversions with 50 MB limits, and the Business plan ($149/mo) supports 50,000 conversions with 150 MB limits.
Yes. The Enconvert API supports programmatic conversion. Send .toml files via the REST API and receive JSON output. Integration examples are available in Python, JavaScript, and cURL.
Related Conversions
Integrate via API
Automate TOML to JSON conversions in your application with just a few lines of code.
curl -X POST "https://api.enconvert.com/v1/convert/toml-to-json" \
-H "X-API-Key: sk_YOUR_SECRET_KEY" \
-F "file=@input_file" \
-o output_file