Base64 Text

Base64 Decoder

Decode Base64 to text or a file in your browser. Free, private, and fast. Paste a Base64 string and download the decoded result — nothing is uploaded.

Drag & drop your Base64 file here

or

Max file size: 50 MB · Your file stays in your browser

Your file is processed locally in your browser — nothing is ever uploaded.

Why Convert Base64 to Text?

When you meet a Base64 blob — in a JWT, an API response, a data URI, or a config file — this tool turns it back into its original form. Text comes back as readable text; binary data (images, documents) is offered as a file download. Data-URI prefixes like data:image/png;base64, are stripped automatically.

Common use cases

  • You have a Base64 file and need it in Text format for notes, logs, and readme files.
  • The target software or platform requires Text but your file is in Base64.
  • You want to reduce file size or improve compatibility without using desktop software.
Keep in mind: No formatting, structure, or metadata — plain text carries only the characters themselves.

How to Convert Base64 to Text

  1. Upload or drop your Base64 file into the converter above.
  2. Adjust any output settings for Text if needed.
  3. Click Convert and download your converted file instantly.

About the Formats

Base64 (Base64 Encoding)

Base64 is a binary-to-text encoding that represents any data using 64 safe ASCII characters. It lets binary content — images, files, credentials — travel through channels that only handle text, such as JSON payloads, data URIs, email attachments, and HTTP basic authentication.

Compatibility: Universal — every language and browser encodes/decodes Base64 natively.

Text (Plain Text)

Plain text is the simplest possible data format: a sequence of characters with no styling or structure. It is the universal input and output of every text tool, from encoders to case converters.

Compatibility: Universal — readable on every device and operating system ever made.

100% Private & Browser-Based

Your files never leave your device. All conversion happens locally in your browser — nothing is uploaded to any server. No sign-up required.

Other Ways to Get a Text File

URL Decoder Case Converter

Need the reverse?

Base64 Encoder

FAQ

Frequently Asked Questions

Yes — completely free with no sign-up, no watermarks, and no size limits for typical files.

Quality depends on the output settings. For lossless output, choose the highest quality setting available.

Your file is processed entirely within your browser using local JavaScript. It is never uploaded to any server. Only you can access your file.

For browser-based conversion, files up to 50 MB work best. Very large files may take longer depending on your device. We recommend splitting very large files before converting.

Currently, AintoB converts one file at a time to keep the browser-based process simple and private. Reload the page to convert another file.