Base64 Decoder

Decode Base64, Base64URL, MIME Base64, or data URLs to bytes directly in the browser.

Decoder settings

Decoding profileText preview encodingFile name

Input

Private by design: your data never leaves your device. Base64 is not encryption.

Base64 text

Output

Paste Base64 or choose a file to see the preview.

Good to know

The Base64 Decoder helps you decode Base64, Base64URL, MIME Base64, and data URLs directly in your browser. It is useful for development, debugging, API testing, documentation, and technical reviews when data needs to be checked quickly or moved into another format.

Typical searches for this page include Base64 decoder, decode Base64, Base64 to text, decode Base64 file, and decode data URL. Processing runs locally in the browser, so sample values, internal payloads, and technical snippets are not sent to a server. Base64 is not encryption and should not be treated as protection for confidential content.

Typical use cases

API and payload debugging

Check Base64, Base64URL, MIME Base64, and data URLs from REST APIs, webhooks, logs, or browser developer tools before using it in tests, documentation, or production configuration.

Documentation and code review

Prepare data so it stays understandable and reproducible in pull requests, README files, tickets, and technical specifications.

Local inspection of sensitive data

Use the tool for internal examples, technical test values, or confidential fragments without copying them into external online services.

Tips for better results

Check the input format deliberately

Many issues come from wrong quotes, missing escapes, unexpected whitespace, or copied prefixes. Check the input first before using the result further.

Validate the result in context

Formatting and conversion do not replace domain validation. For data migrations, security values, or production configuration, always check what the result means.

How it works

Step by step

1
Paste data
Paste Base64, Base64URL, MIME Base64, and data URLs into the input field or choose a local file when the tool supports file import.
2
Adjust options
Choose format, variant, indentation, or output options as needed for your target system.
3
Use the result
Copy the output into code, tests, documentation, or configuration and review critical values before use.

Features

Runs locally in the browser

Inputs are processed on your device and are not sent to a server for processing.

For developer workflows

Useful for API data, configuration files, logs, test data, and technical documentation.

Instantly reviewable result

The result is visible immediately and can be copied or downloaded for the next step.

Frequently asked questions

Is data uploaded when using the Base64 Decoder?

No. Processing runs locally in the browser. Inputs are not transferred to Xoricon or another server.

Can I use the result directly?

Yes, for tests, examples, and documentation. For production data, also validate the result in the target system.

Why can an input fail?

Common causes are a wrong format, missing escapes, invalid characters, incomplete data, or a variant that does not match the expected standard.

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