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# fiftyone.core.json

FiftyOne JSON handling

Copyright 2017-2026, Voxel51, Inc.
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[voxel51.com](https://voxel51.com/)
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**Functions:**

| [`stringify`](#fiftyone.core.json.stringify)(d[, \_cls])   | Converts unsafe JSON types to strings   |
|------------------------------------------------------------|-----------------------------------------|

### fiftyone.core.json.stringify(d, \_cls=None)

Converts unsafe JSON types to strings

* **Parameters:**
  **d** – serializable data
* **Returns:**
  a stringified version of the data