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YFT
Client-side ProcessingUpdated 2026-02-11Report issue

Runs fully in your browser. Inputs stay on your device. See recent fixes on changelog.

Base64 to File Decoder

Decode Base64 strings back to downloadable files.

FreeRuns in browserbase64 to filedecode base64 file

Decodes Base64 strings and reconstructs the original file for download.

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Cmd/Ctrl+Enter Primary actionCmd/Ctrl+Shift+L Load sampleCmd/Ctrl+Shift+X Clear/resetCmd/Ctrl+Shift+C Copy result

About Base64 to File Decoder

Decode Base64 strings back to downloadable files online for free. Paste Base64 encoded data and restore the original file with correct MIME type detection. Implements standard encoding and decoding algorithms that produce output compatible with all major programming languages and platforms. Supports both encoding and decoding in a single interface. This tool specializes in converting from Base64 to File Decoder, providing optimized defaults and precision for this specific direction. Looking for the reverse conversion? Try our File Decoder to Base64 converter. Everything runs client-side in your browser for maximum speed and privacy — no data is sent to any server, and no signup is required.

Related tools: File to Base64 Encoder, Data URI Generator, File Size Analyzer

How to Use Base64 to File Decoder

  1. Enter text or data in the input field.
  2. Click Encode or Decode depending on your goal.
  3. Copy the output to your clipboard.

Frequently Asked Questions

What is Base64 to File Decoder?
Decode Base64 strings back to downloadable files online for free. Paste Base64 encoded data and restore the original file with correct MIME type detection.
What encoding standards are used?
This tool follows the official encoding specifications, including RFC standards where applicable. The implementation matches widely-used libraries so the output is compatible with other systems and programming languages.
Can I encode binary data?
The tool primarily handles text input, but many encoding formats such as Base64 are designed to represent binary data as text. You can paste Base64-encoded binary data for decoding or encode text into a binary-safe format.
Is the encoding reversible?
Yes, all encoding operations provided by this tool are fully reversible. You can encode text and then decode it back to get the exact original content without any data loss.
Is Base64 to File Decoder free to use?
Yes, encoding and decoding are completely free with no usage limits. The tool runs in your browser and requires no registration.
Is my data safe when using Base64 to File Decoder?
Yes, all encoding and decoding happens locally in your browser. No data leaves your device, so your input remains completely private.

Related Tools

File to Base64 Encoder
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Data URI Generator
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File Size Analyzer
Analyze file size and show breakdown in all units.