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Base64 Decode Online

Convert Base64 encoded strings back to readable text or downloadable files. Fast and private.

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No account required - Start instantly

Instant Base64 Decoding

Need to decode a Base64 string? Our free online decoder instantly converts Base64 back to its original format, whether it's text, JSON, or binary data that you can download as a file.

Perfect for debugging APIs, reading encoded email headers, or extracting embedded images. Everything processes locally in your browser for maximum privacy.

Decoding Features

Decode any Base64 content

Text Decoding

Decode Base64 strings to readable text with automatic character encoding detection.

File Download

Decode Base64 to binary and download as a file. MIME type auto-detection included.

Image Preview

Decode Base64 images and preview them instantly before downloading.

Batch Processing

Decode multiple Base64 strings at once for efficient workflow.

How to Decode Base64

Quick and easy

1

Paste Base64

Enter your Base64 encoded string in the input area.

2

Click Decode

The tool automatically detects the content type.

3

View or Download

See the decoded text or download binary files.

Common Use Cases

Decoding API responses with Base64 data
Reading encoded email headers and attachments
Extracting images from data URIs
Debugging JWT tokens and encoded payloads
Decoding configuration values from environment variables
Converting Base64 back to binary files

Frequently Asked Questions

Ready to Decode?

Paste your Base64 string and decode it instantly

Open Base64 Decoder

Contact

Tell us what you're building and we'll get in touch fast

Ship a proof-of-concept, integrate Metro2, or hand off the workflow entirely—we respond within one business day and loop in the right Switch Labs partner for your stack.

Response Time
< 24 hours
Delivery Options
Product | Services

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