> For the complete documentation index, see [llms.txt](https://docs.feathery.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.feathery.io/platform/build-forms/elements/fields/file-upload.md).
# File Upload
The `File Upload` field allows users to upload a single or multiple files.
You can also configure the type of files allowed to be uploaded (e.g. documents, media, etc.) and specify a max file upload size as well.
If no max file size is specified, the field will have a default size constraint of 10MB, and at most 20 files can be uploaded to a single field. These constraints can be increased on the business plan.
### For Developers
The Feathery SDK and API reference file upload fields with `type` equal to `file_upload`. The submitted value is a [file object](https://developer.mozilla.org/en-US/docs/Web/API/File).
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