Convert TOML to JSON NoLimit
Prepare your TOML file for JSON output. Check your options before starting online processing.
Drop your TOML file here
or click to choose a file — conversion to JSON
TOML and JSON · format comparison
Frequently asked questions
How to convert TOML to JSON in ConvertLab?+
Choose your TOML file, select JSON, then proceed to preparation. Check the displayed options and click "Start conversion." After processing, download the result and open it in your target application. Simply selecting an output does not send your file.
Is the conversion from TOML to JSON free?+
€2 per month, renewed automatically. Turn off renewal in your account before the next billing date. Access continues until the end of the paid period. An Internet connection is required. File size limits and format compatibility still apply.
What elements should be checked in the result?+
Check the number of rows, columns, accented characters, dates, empty values, and leading zeros. Validate a small sample in your application before importing the entire result.
Why does my JSON change structure when converted to CSV?+
CSV represents a table of rows and columns. JSON can contain objects and nested lists that do not transpose directly. Convert a copy, check how the fields are represented, and keep the JSON if your usage requires retaining its entire structure.
How can one avoid losing the leading zeros in identifiers?+
When opening the CSV in a spreadsheet, import the identifier columns as text. Automatic opening can turn 00123 into 123. Also check the dates and decimal separators before re-saving.
Can I convert a file containing secrets?+
Remove passwords, API keys, and other secrets before sending a sample to the service or support. File processing is done online. For data that must not leave your device, use a suitable local tool.
What to do if the conversion fails?+
Read the displayed message: a size limit, a reached quota, and an unsupported format require different actions. Check that the file opens locally, then try again with a lighter copy if necessary. If the problem persists, contact support with the formats, size, and error message, without attaching sensitive data.