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10 encoding jobs

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Private Base Encoding tools for exact bytes

Encode and strictly decode Base16, Base32, Bitcoin Base58, Base64, Adobe Ascii85, and ZeroMQ Z85 without uploading content or guessing a dialect.

Every operation stays in the active browser tab.

Choose a byte job

Each route owns one encode or strict decode contract.

Base16 EncoderTurn reviewed UTF-8 text or hexadecimal byte pairs into uppercase RFC 4648 Base16.Open tool
Base16 DecoderValidate hexadecimal byte pairs and inspect their exact bytes plus an optional valid UTF-8 view.Open tool
Base32 EncoderChoose RFC 4648 Base32 or base32hex and decide whether canonical padding is retained.Open tool
Base32 DecoderDecode one chosen Base32 profile without case folding, ambiguous glyph mapping, or padding repair.Open tool
Bitcoin Base58 EncoderCreate raw Bitcoin-alphabet Base58 text without address rules, hashing, or Base58Check.Open tool
Bitcoin Base58 DecoderRecover exact bytes from the Bitcoin Base58 alphabet without Base58Check or address validation.Open tool
Base64 EncoderSelect standard Base64 or Base64url and retain or omit its canonical padding deliberately.Open tool
Base64 DecoderRecover bytes from one chosen Base64 profile without whitespace stripping or alphabet guessing.Open tool
Base85 EncoderChoose framed Adobe Ascii85 for arbitrary byte lengths or unframed Z85 for exact four-byte chunks.Open tool
Base85 DecoderValidate the selected Base85 dialect, recover its exact bytes, and keep invalid UTF-8 separate.Open tool

Start with explicit Base64

Choose UTF-8 or hexadecimal source bytes, standard or URL-safe alphabet, and a visible padding policy before producing a result.

Encode Base64

Limited to 512 KiB of bytes and 1 MiB of encoded text.

Tool Swim does not upload, fetch, save, log, convert files, or create presets from these values.

Selected Base64 representation

Decoder reports keep lowercase hexadecimal authoritative.

Encoding is reversible, not secret

Base-N text can expose credentials, tokens, or unreleased payloads just as plainly as the original bytes. The public workbench keeps both forms in the current tab.

Profiles are never auto-detected. Padding, Base64url, base32hex, Bitcoin Base58, Adobe framing, and Z85 chunk requirements remain visible decisions.

These tools do not hash, encrypt, compress, validate addresses, parse data URLs, or convert files.