Base64 to Image Tool

Convert Base64 encoded strings to images

Use this tool to decode Base64 encoded strings into images, supporting various image formats.

Base64 Image Decoder

Options

Features

Fast Decoding

Quickly convert Base64 encoded strings to visual images for easy viewing and use.

Secure Processing

All processing is done in your browser, your data is never sent to any server.

Multiple Format Support

Support for decoding Base64 in common image formats including PNG, JPEG, GIF, and WebP.

Prefix Handling

Automatically add or recognize data URI prefixes, making the decoding process more convenient.

Flexible Options

Provides various decoding options to meet different scenario needs.

One-Click Download

Decoded images can be downloaded directly to your device for future use.

How to Use

1

Input Base64 Code

Paste the Base64 encoded string into the input box. It can include or exclude the data URI prefix.

Tip: If you're unsure about the prefix, you can enable the "Auto-add data prefix" option.

2

Select Decoding Options

Adjust decoding options as needed, such as auto-adding prefix, detecting image type, etc.

Tip: For most cases, the default options are sufficient.

3

Click Decode Button

Click the "Decode to Image" button, and the system will process your Base64 code and display the result.

4

View and Download

After successful decoding, you can view the image and get image information, and also download it directly.

Tip: The downloaded image will retain its original format and quality.

What is Base64?

Base64 is a encoding method that converts binary data into a text format using 64 different characters. It's designed to carry data stored in binary formats across channels that only reliably support text content.

Original Text:
Man is distinguished, not only by his reason, but ...
Base64 Encoded:
TWFuIGlzIGRpc3Rpbmd1aXNoZWQsIG5vdCBvbmx5IGJ5IGhpcyByZWFzb24sIGJ1dCAuLi4=

Common Use Cases

Email Attachments

Base64 is used in email systems (MIME) to encode binary attachments into ASCII text format for transmission.

Data URIs

Embedding images and other files directly in HTML/CSS using data URI scheme with Base64 encoding.

URL Safe Data

Encoding binary data to be safely included in URLs and filenames without special characters.

Technical Details

  • Uses a set of 64 characters: A-Z, a-z, 0-9, and typically "+" and "/" with "=" for padding
  • Converts every 3 bytes of binary data into 4 Base64 characters
  • Ensures data integrity during transfer across text-based systems
  • Increases data size by approximately 33% compared to binary format