12/26/2023 0 Comments Base64 encoding reduce size![]() ![]() You will want to compress the original binary data and then base64 the compressed data, or don’t bother coverting to base64 atall.Īccording to my understanding, a base64 encoded string (ie the output of encode) must always be a multiple of 4. Base64 is already encoded in a way which does not suit most compression algorithms – see Why does base64-encoded data compress so poorly? for details. There is no encoding that “reduces size.” Encodings are just mappings of bits to the character they represent.ġ Answer. Does base64 make a string shorter?įor example, BASE64 is representing data using 6 bits (26, hence 64) of characters to represent longer data sequences (the sometimes-appearing “=” at the end is padding for alignment). So it is obvious that the dumps method will convert a python object to a serialized JSON string and the loads method will parse the Python object from a serialized JSON string. dumps() and for decoding, we’ll use json. ![]() It is encoded in US-ASCII (by definition) and described in RFC 4648. A base64 string contains 6 bits in each character and requires 100 characters to represent your data. How do you encode an object in Python?įor encoding, we use json. 1 Answer Sorted by: 2 A 100-character base64 string contains 600 bits of information. quote(string, encoding=None) with the query as string and the encoding type as encoding to encode the string with the encoding scheme. So to get the size of the original data, you juste have to multiply the stringLength (minus the header) by 3/4.īase64 encoding makes file sizes roughly 33% larger than their original binary representations, which means more data down the wire (this might be exceptionally painful on mobile networks) How does base64 calculate file size?īase64 encodes 3 bytes of binary data on 4 characters. use a pure binary post body rather than base-anything (this is effectively base-256)Ī more complete answer is that a base64 encoded string doesn’t always end with a =, it will only end with one or two = if they are required to pad the string out to the proper length.use a higher base (although you’ll need to write the encode/decode manually, and you’ll still only be able to get to about base-90 or something, so you won’t drastically reduce the size). ![]()
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