Convert TOML to JSON

Convert TOML to JSON free in your browser. No upload, no signup, no watermark. Files stay on your device.

privatepowered by smol-toml
tomljson

drop a .toml file

or click to browse

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guide

how to convert toml to json

  1. Add your TOML file

    Drag and drop your TOML file into the drop zone above, or click the box to browse for a file.

  2. Click Convert

    The conversion happens locally in your browser. No upload, no server, no waiting in queue.

  3. Download the JSON file

    When the conversion finishes, the JSON file is ready to download. Save it anywhere on your device.

FAQ

common questions

Is the TOML to JSON converter free?

Yes. Every conversion on this site is free, with no signup, watermark or file count limit.

Are my files uploaded to a server?

No. Conversion runs entirely in your browser using smol-toml. Your files never leave your device, so we cannot see them even if we wanted to.

Is there a file size limit for TOML to JSON?

There's no hard limit. In practice, file size is bounded by your device's available memory — typically several hundred megabytes work fine on a modern computer.

Does it work offline?

Once this page has loaded, yes. You can disconnect from the internet and the converter will still work. Reloading the page does require connectivity.

Will my TOML file lose quality when converted to JSON?

It depends on the formats involved. Converting between lossy formats (JPG, MP3) re-encodes data and slightly reduces quality. Lossless formats (PNG, WAV, FLAC) preserve everything. Pixel dimensions and color depth are preserved for image conversions.