JAVASCRIPT

blob to file javascript

const file = new File(
				blob,
				'filename.png',
				{
					type: blob.type,
					lastModified: new Date().getTime()
				}
			)

convert file to blob javascript

//you can change type when upload image to image/png,jpeg,jpg
const blob = new Blob([file],{type: 'audio/m4u'})

javascript blob to file

const file = new File(
				[blob],
				'filename.png',
				{
					type: blob.type,
					lastModified: new Date().getTime()
				}
			)