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  1. [ References  ](/en-US/docs/Web)
  2. [ Web APIs  ](/en-US/docs/Web/API)
  3. [ FileReader  ](/en-US/docs/Web/API/FileReader)

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##  In this article

  * Constructor 
  * Instance properties 
  * Instance methods 
  * Events 
  * Specifications 
  * Browser compatibility 
  * See also 

  1. **[ File API ](/en-US/docs/Web/API/File_API) **
  2. **_[ ` FileReader ` ](/en-US/docs/Web/API/FileReader) _ **
  3. Constructor 
    1. [ ` FileReader() ` ](/en-US/docs/Web/API/FileReader/FileReader)
  4. Instance properties 
    1. [ ` error ` ](/en-US/docs/Web/API/FileReader/error)
    2. [ ` readyState ` ](/en-US/docs/Web/API/FileReader/readyState)
    3. [ ` result ` ](/en-US/docs/Web/API/FileReader/result)
  5. Instance methods 
    1. [ ` abort() ` ](/en-US/docs/Web/API/FileReader/abort)
    2. [ ` readAsArrayBuffer() ` ](/en-US/docs/Web/API/FileReader/readAsArrayBuffer)
    3. [ ` readAsBinaryString() ` ](/en-US/docs/Web/API/FileReader/readAsBinaryString) Deprecated 
    4. [ ` readAsDataURL() ` ](/en-US/docs/Web/API/FileReader/readAsDataURL)
    5. [ ` readAsText() ` ](/en-US/docs/Web/API/FileReader/readAsText)
  6. Events 
    1. [ ` abort ` ](/en-US/docs/Web/API/FileReader/abort_event)
    2. [ ` error ` ](/en-US/docs/Web/API/FileReader/error_event)
    3. [ ` load ` ](/en-US/docs/Web/API/FileReader/load_event)
    4. [ ` loadend ` ](/en-US/docs/Web/API/FileReader/loadend_event)
    5. [ ` loadstart ` ](/en-US/docs/Web/API/FileReader/loadstart_event)
    6. [ ` progress ` ](/en-US/docs/Web/API/FileReader/progress_event)
  7. Inheritance 
    1. [ ` EventTarget ` ](/en-US/docs/Web/API/EventTarget)
  8. Related pages for File API 
    1. [ ` Blob ` ](/en-US/docs/Web/API/Blob)
    2. [ ` File ` ]