Online File to Base64 Encoder
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Tool Introduction:
File Base64 encoding/encryption tool for converting files to Base64 encoding online. Supports various file types including images, PDF, OFD, Word, text files and more. Click the area below to browse and select a file or drag and drop it, then click "File Base64 Encode" to display the encoded string in the text box below.
Drag your file here or click to select file...
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About Online File to Base64 Encoding:
Base64 is an encoding method that uses 64 printable characters to represent binary data, one of the most common encoding methods for transmitting 8-bit byte code on the internet. These 64 printable characters include uppercase letters A-Z, lowercase letters a-z, numbers 0-9 (62 characters in total), plus two additional characters: + and /. Files themselves are composed of binary data, which is inconvenient to transmit as strings. Base64 encoding files solves the problem of being unable to directly transmit file data as strings.
Applications of File Base64 Encoding:
- 1. In HTTP file upload scenarios, many open API platforms implement REST interfaces. To replace multipart/form-data encoding transmission, file content is encoded as Base64 string data and passed as parameters.
- 2. For image display in web pages, images are encoded as Base64 strings and embedded in web pages for display.
- 3. Some document format files, such as PDF and OFD, first Base64 encode attachments or images, then embed them in the file, and the corresponding document reader parses and presents them after opening the document file.