Base64 Decoder

What is Base64 Decoder?

Base64 Decoder is a free online tool that converts Base64 encoded text back to its original form. It decodes strings of letters and numbers into readable text, images, or binary data.

Why Would You Need to Decode Base64?

Base64 encoding appears in many places online:

• Email attachments: Decode embedded images and files from emails
• API responses: Read data returned in Base64 format
• Data URLs: Extract embedded content from web pages
• Configuration files: Decode credentials and certificates

How to Decode Base64 - Step by Step

1. Paste Base64 text: Enter the encoded string in the input box
2. Click Decode: Press the button to convert to original format
3. View or copy result: See the decoded text or download decoded files

Key Features

• Instant decoding: Converts Base64 text immediately
• Multiple formats: Handles text, images, and binary data
• File downloads: Save decoded binary content as files
• URL safe mode: Supports URL-safe Base64 variants

Tips for Best Results

• Make sure to copy the complete Base64 string without extra spaces
• If output looks wrong, check if the data was double-encoded
• For images, look for data:image prefix to identify the format

Frequently Asked Questions

What is Base64 encoding?

Base64 converts binary data into text using 64 characters (A-Z, a-z, 0-9, +, /). This lets you include binary data in places that only accept text.

Why does my decoded text look wrong?

The original content might not be text. Base64 can encode images, files, or compressed data. Try downloading as a file instead.

Is Base64 encryption?

No, Base64 is encoding, not encryption. Anyone can decode Base64. Do not use it to hide sensitive information.