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Encode and decode base64 in batch.

Base64 Batch Encoder/Decoder

Each non-empty line is processed as a separate text value.

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Batch Base64 Encoder and Decoder

Convert multiple text entries or images to and from Base64 at the same time with this free online Batch Base64 Encoder/Decoder. Instead of processing one value at a time, the batch tool lets you enter one text value per line and encode or decode all entries together. You can also upload multiple images to generate their corresponding Base64 data, or paste multiple Base64 image values with one image per line to decode them. Each image result includes its own preview along with convenient copy and download buttons, making this tool useful for developers, web designers, students, and anyone who needs to process multiple Base64 values efficiently.

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How to Use the Batch Base64 Encoder and Decoder

The batch Base64 tool supports both text and image processing. Select whether you want to encode or decode, choose the data type, provide your entries, and the tool processes each entry individually.

Batch Text Encoding

  1. Select Encode to Base64 and choose Text.
  2. Enter the text you want to encode, using one entry per line.
  3. The tool processes each line as a separate input and generates a corresponding Base64 value.
  4. Copy the resulting Base64 values for use in your application, API, development project, or other workflow.

Batch Text Decoding

  1. Select Decode Base64 and choose Text.
  2. Paste your Base64 values into the input area with one Base64 value per line.
  3. Each line is treated as a separate Base64 value and decoded individually.
  4. Review or copy the decoded text results.

Batch Image Encoding

  1. Select Encode to Base64 and choose Image.
  2. Upload multiple image files at once.
  3. The tool generates Base64 data for each uploaded image.
  4. Each image is displayed with its own preview, along with a Copy button for copying its Base64 value and a Download button for downloading the image.

Batch Image Decoding

  1. Select Decode Base64 and choose Image.
  2. Paste your Base64 image data into the input area, using one Base64 image value per line.
  3. The tool decodes each line as a separate image.
  4. A preview is displayed for each decoded image, with individual Copy and Download buttons for each result.

What Is Batch Base64 Conversion?

Base64 is a binary-to-text encoding format commonly used to represent text, images, and other binary data as a string of characters. A standard Base64 converter processes one value at a time, while a batch Base64 converter allows multiple values to be handled in a single operation.

For text, the batch workflow uses line breaks to separate individual entries. Each line is treated as an independent value, so you can encode or decode many strings without repeatedly entering them into the tool. For images, multiple files can be uploaded for encoding, while Base64 image strings can be provided one per line for decoding.

Base64 Images and Data URIs

Encoded images can be represented as Base64 data, often with a data URI prefix such as data:image/png;base64,. This allows image data to be represented as text and used in compatible HTML, CSS, applications, APIs, and development workflows. When decoding image Base64, the tool converts the encoded data back into an image that can be previewed and downloaded.

Why Use a Batch Base64 Converter?

Batch processing is especially useful when you have many values to convert. Instead of repeating the encode or decode process for every individual entry, you can organize your inputs line by line and process them together. Image processing also keeps each result separate, making it easy to identify, preview, copy, or download individual images.

  • Encode multiple text values into Base64 at once.
  • Decode multiple Base64 text values in one operation.
  • Upload multiple images and generate Base64 data for each image.
  • Decode multiple Base64 images using one image per line.
  • Preview decoded images individually.
  • Copy the Base64 value associated with each image.
  • Download individual decoded or encoded image results.

Base64 Is Encoding, Not Encryption

Base64 does not encrypt or secure data. Encoding changes the representation of information, but the original value can be recovered through decoding. Do not use Base64 as a replacement for encryption or as a way to protect passwords, private keys, or other sensitive information.

FAQ

What is a batch Base64 encoder and decoder?

A batch Base64 encoder and decoder processes multiple Base64 values at once. For text, you provide one entry per line. For images, you can upload multiple files or provide one Base64 image value per line when decoding.

How do I batch encode text to Base64?

Select Encode to Base64 and Text, then enter one text value per line. Each line is processed as a separate entry and converted to Base64.

How do I batch decode Base64 text?

Select Decode Base64 and Text, then paste one Base64 value per line. Each line is decoded separately into its corresponding text.

Can I encode multiple images to Base64?

Yes. Select Encode to Base64 and Image, then upload multiple images. The tool generates a Base64 value for each image and displays an individual preview with a copy button for its Base64 data.

How do I decode multiple Base64 images?

Select Decode Base64 and Image, then paste one Base64 image value per line. Each line is decoded into its own image preview with individual controls for copying the Base64 data and downloading the image.

Can I download images from the batch Base64 tool?

Yes. Image results have individual download buttons, allowing you to download the corresponding image directly from its result.

Can I copy the Base64 for just one image?

Yes. Each image result has its own copy button, so you can copy the Base64 value associated with an individual image without having to copy the entire batch.

Is Base64 encoding secure?

No. Base64 is an encoding format rather than an encryption method. Base64 data can be decoded, so it should not be used to protect sensitive information.