Base64 Decoder

Use Base64 Decoder to convert BASE64 to TEXT online in your browser. Process supported files locally, use batch conversion where available and download the result.

Processed locally

AVAILABLE CONVERTERS

About BASE64 and TEXT

Learn about the source and output formats used in this BASE64 to TEXT conversion.

SOURCE FORMAT

BASE64

Base64 represents binary or text data with ASCII characters for transport and embedding.

Open BASE64 Converter
OUTPUT FORMAT

TEXT

Plain text contains unformatted characters and works across virtually every platform.

Open TEXT Converter
InputBASE64
OutputTEXT
Best fordevelopment and structured content

About this tool

About Base64 Decoder

Decode Base64 text back into readable text or bytes when inspecting API payloads, data URLs and exported configuration values. The tool is designed for quick checks and copy-and-paste work directly in your browser.

This tool is available for browser processing. The main operation runs on your device when supported by the browser and selected format.

When to use Base64 Decoder

Use it to inspect a value returned by an API, decode a small data URL, recover text from a Base64 field, or verify an encoder's output. Base64 is encoding rather than encryption, so decoded secrets should still be treated as exposed.

How to use this tool

  1. Paste the Base64 string or add a supported input file.
  2. Decode it and review the output for readable text, binary data or a data URL.
  3. If decoding fails, check padding, line breaks and accidental spaces in the input.
  4. Copy or download the result only after confirming it is the expected content.

Encoding and privacy

Base64 does not provide confidentiality and may contain credentials, tokens or personal data in plain encoded form. Do not paste sensitive production values into a shared device. Text decoding works best with valid UTF-8 input and supported local browser processing.

Use Base64 Encoder to create an encoded value, JSON Validator to check a decoded JSON payload, or Word Counter to measure decoded text.

Three simple steps

How it works

  1. 1
    Choose

    Add a supported file or paste your content.

  2. 2
    Process

    The tool works locally in your browser when supported.

  3. 3
    Download

    Save the result directly to your device.

Frequently asked questions

Base64 Decoder FAQ

What does Base64 Decoder do?

It decodes valid Base64 text back into readable text when the input represents text.

Does Base64 encrypt my data?

No. Base64 is an encoding, not encryption. Do not use it as a way to protect passwords, tokens or confidential data.

What happens with invalid Base64?

The tool may report an error or produce incomplete output. Check padding, line breaks and the character set before trying again.

Is my input uploaded?

No. Supported encoding and decoding runs locally in your browser.

Do I need an account?

No account is required for the core browser tool.