Encode or decode text using Base32 (RFC 4648) encoding.
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About Base32 Encoder/Decoder
The Base32 Encoder/Decoder converts binary data to and from Base32 encoding as defined by RFC 4648, using a 32-character alphabet of uppercase letters A through Z and digits 2 through 7. Base32 was designed for contexts requiring case-insensitive encoding — it is used in TOTP (Time-Based One-Time Password) secret keys for two-factor authentication, Tor v3 hidden service addresses, and certain DNS label encodings. Base32-encoded strings contain no ambiguous characters that could be confused visually, making them safe for manual transcription.
Paste text or raw data into the input field and click Encode to convert to Base32, or paste a Base32-encoded string and click Decode to recover the original bytes. The tool supports both standard RFC 4648 Base32 (uppercase, with = padding) and optional no-padding variants used in some protocols.
Common Use Cases
•Encoding TOTP or HOTP secret keys for QR code generation when setting up Google Authenticator or Authy two-factor authentication
•Decoding Base32 secret seeds from authenticator app backup codes and configuration URIs for account recovery
•Encoding binary data for DNS TXT records where case-insensitive values are required by the DNS protocol
•Working with Tor v3 onion addresses and decoding their Base32 encoded public key components for research
•Converting binary file hashes to Base32 for use as case-insensitive filename-safe identifiers in content-addressed storage
Frequently Asked Questions About Base32 Encoder/Decoder
What is Base32 Encoder/Decoder?
Base32 Encoder/Decoder is a free online tool on akousa.net, a platform with 557+ browser-based utilities. Encode or decode text using Base32 (RFC 4648) encoding. It runs entirely in your browser with no installation, signup, or data upload to any server.
How do I use Base32 Encoder/Decoder?
Simply open Base32 Encoder/Decoder on akousa.net, enter or upload your data, configure any options, and click the action button. Results appear instantly in your browser.
Is Base32 Encoder/Decoder free?
Yes, Base32 Encoder/Decoder is completely free to use with no limitations. There is no signup, no ads, and no file size restrictions. All 557+ tools on akousa.net are free and open to everyone.
Is my data safe with Base32 Encoder/Decoder?
Yes, Base32 Encoder/Decoder processes everything locally in your browser. Your data never leaves your device and is never sent to any server. This client-side approach ensures complete privacy for all inputs and outputs.
What formats does Base32 Encoder/Decoder support?
Base32 Encoder/Decoder supports all commonly used formats for its conversion type. Simply upload or paste your source data and select the desired output format from the available options.
Does Base32 Encoder/Decoder work on mobile?
Yes, Base32 Encoder/Decoder is fully responsive and works on smartphones, tablets, and desktops. All processing happens in your browser, so it works on any device with a modern web browser.
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