What is the difference between Base32 and Base64?

Base32 uses a 32-character set (A-Z, 2-7) and is case-insensitive, making it safer for URLs and human reading. Base64 uses 64 characters and is case-sensitive, offering better storage efficiency.

Yes, this Base32 converter is 100% free to use, with no sign-up, limits, or watermarks.

Is my data sent to a server?

No. All encoding and decoding runs entirely in your browser. Your text and files never leave your device, so the tool is safe for sensitive data.

Which Base32 standard does this tool use?

It follows the RFC 4648 Base32 alphabet, using the 26 uppercase letters A-Z and the digits 2-7, with = padding to align the output to 8-character blocks.

Can I encode and decode files, not just text?

Yes. Drag and drop or upload a file of any type to encode its bytes into Base32, and decode a Base32 string back into the original file with the Download button.

Base32 Encode & Decode - Free Online Base32 Converter Tool

Encode and decode Base32 online, converting text and files to Base32 and back. Real-time results with secure, client-side processing and no upload.

Convert text or files to and from Base32 instantly with this online encoder and decoder. The tool outputs a standard RFC 4648 Base32 string using the A-Z and 2-7 alphabet when encoding, and recovers the original bytes when decoding. Conversion runs entirely in your browser, so nothing is uploaded and your data stays on your device.

Input

Output

About Base32 Encoding

Base32 is a binary-to-text encoding scheme that represents binary data in an ASCII string format by translating it into a radix-32 representation. It uses a set of 32 digits, consisting of capital letters A-Z and digits 2-7.

Key Features

Real-time Conversion

See results instantly as you type.

File Support

Encode or decode files of any type.

Client-Side Secure

All processing happens in your browser. Your data is never sent to our servers.

How to Use the Base32 Encoder / Decoder

1
Choose a mode
Select Encode to turn plain text or a file into Base32, or Decode to convert a Base32 string back into its original data.
2
Provide your input
Type or paste content into the input area, or drag and drop a file to encode any binary content.
3
Read the result instantly
The converted Base32 (or decoded) output appears in real time in the output area as you type.
4
Copy or download
Use the Copy button to send the result to your clipboard, or Download to save it as a file.

References

RFC 4648 — The Base16, Base32, and Base64 Data Encodings
The authoritative IETF specification defining the Base32 alphabet (A-Z, 2-7), padding rules, and encoding behavior implemented by this tool.

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Frequently Asked Questions

What is the difference between Base32 and Base64?: Base32 uses a 32-character set (A-Z, 2-7) and is case-insensitive, making it safer for URLs and human reading. Base64 uses 64 characters and is case-sensitive, offering better storage efficiency.
Is this tool free?: Yes, this Base32 converter is 100% free to use, with no sign-up, limits, or watermarks.
Is my data sent to a server?: No. All encoding and decoding runs entirely in your browser. Your text and files never leave your device, so the tool is safe for sensitive data.
Which Base32 standard does this tool use?: It follows the RFC 4648 Base32 alphabet, using the 26 uppercase letters A-Z and the digits 2-7, with = padding to align the output to 8-character blocks.
Can I encode and decode files, not just text?: Yes. Drag and drop or upload a file of any type to encode its bytes into Base32, and decode a Base32 string back into the original file with the Download button.