Programming examples

Place this function inside your code to convert an image to base64:

import base64 img_file = "image.png" def image_to_base64(): b64 = base64.encodestring(open(img_file,"rb").read()) # Python 2 return b64 # Python 3 return b64.decode("utf8")

Place this function inside your code to convert a base64 text to an image. img_data should be a the base64 string to be converted to image.

import base64 img_data = "R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==" def base64_to_image(): with open("imageToSave.png", "wb") as fh: fh.write(base64.decodebytes(img_data))

Place this function inside your code to convert an image to base64:

public static void main(String[] args) { File file = new File("C:/Users/<user>/Desktop/image.png"); String encodstring = encodeFileToBase64Binary(file); System.out.println(encodstring); } private static String encodeFileToBase64Binary(File file){ String encodedfile = null; try { FileInputStream fileInputStreamReader = new FileInputStream(file); byte[] bytes = new byte[(int)file.length()]; fileInputStreamReader.read(bytes); encodedfile = new String(Base64.encodeBase64(bytes), "UTF-8"); } catch (Exception e) { e.printStackTrace(); } return encodedfile; }

Place this function inside your code to convert a base64 text to an image. base64Text should be a the base64 string to be converted to image.

private static void base64ToImage(base64Text){ String[] strings = base64String.split(","); byte[] data = DatatypeConverter.parseBase64Binary(strings[1]); String path = "C:\\Users\\<user>\\Desktop\\image.png"; File file = new File(path); try (OutputStream outputStream = new BufferedOutputStream(new FileOutputStream(file))) { outputStream.write(data); } catch (IOException e) { e.printStackTrace(); } }

Place this function inside your code to convert an image to base64:

public string ImageToBase64(){ string path = "C:\\image.png"; using(System.Drawing.Image image = System.Drawing.Image.FromFile(path)) { using(MemoryStream m = new MemoryStream()) { image.Save(m, image.RawFormat); byte[] imageBytes = m.ToArray(); base64String = Convert.ToBase64String(imageBytes); return base64String; } } }

Place this function inside your code to convert a base64 text to an image:

public System.Drawing.Image Base64ToImage(base64String) { byte[] imageBytes = Convert.FromBase64String(base64String); MemoryStream ms = new MemoryStream(imageBytes, 0, imageBytes.Length); ms.Write(imageBytes, 0, imageBytes.Length); System.Drawing.Image image = System.Drawing.Image.FromStream(ms, true); return image; }

Use this code to convert an image to base64:

require "base64" encoded_string = Base64.encode64(open("url_to_image") { |io| io.read })

Use this code to convert a base64 text to an image on Ruby:

File.open('image.png', 'wb') do|f| f.write(Base64.decode64(base_64_encoded_data)) end

Use this function inside your code to convert an image to base64:

function getBase64(url, callback) { var image = new Image(); image.onload = function () { var canvas = document.createElement('canvas'); canvas.width = this.naturalWidth; canvas.height = this.naturalHeight; canvas.getContext('2d').drawImage(this, 0, 0); // Get raw image data callback(canvas.toDataURL('image/png').replace(/^data:image\/(png|jpg);base64,/, '')); }; image.src = url; } getBase64('/image.png', function(base64) { // Do whatever you'd like with the base64! });

Place this code to convert a base64 text to an image and place it on the body:

var image = new Image(); image.src = 'data:image/png;base64,iVBORw0K...'; document.body.appendChild(image);