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Use MessagePack for efficient binary serialization

MessagePack packs JSON-like data into a compact binary format, reducing size and parsing time. Popular in high-performance APIs and IoT.

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MessagePack is a binary serialization format that represents JSON-like data in fewer bytes. It uses a type-length-value encoding: small integers fit in 1 byte, short strings in 1-2 bytes, and there are no delimiters or quotes. It is faster to encode/decode than JSON because it avoids text parsing.
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Base64 Encoder →
Encode the MessagePack binary output as base64 for transport through text channels. MessagePack produces raw bytes — base64 makes them safe for JSON fields, HTTP headers, or logs. The receiver reverses: base64 decode → MessagePack unpack.
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Hex Encoder →
Alternatively, encode as hex for debugging — hex is human-readable and lets you inspect the MessagePack byte structure. Each byte shows the type and value encoding. Use this for protocol debugging, not production transport (hex is 2x larger than base64).
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Use MessagePack for: internal microservice communication (gRPC-like efficiency without protobuf schema), IoT (small payloads), and caching (smaller Redis values). For public APIs, use JSON with content negotiation — support both application/json and application/x-msgpack.

Frequently asked questions

MessagePack vs Protobuf?: Protobuf requires a schema (.proto file) and generates code — smaller and faster but less flexible. MessagePack is schemaless like JSON — easier to use but slightly larger. Use Protobuf for stable, high-volume internal APIs; MessagePack for flexibility or when schemas change often.
Can I use MessagePack in the browser?: Yes. Libraries like @msgpack/msgpack provide fast encoding/decoding. For HTTP, use content negotiation: send Accept: application/x-msgpack and decode the binary response. For WebSocket, send/receive ArrayBuffer directly.

Workflows that solve this

Convert Ascii85 to Base64

Decode Ascii85 and re-encode as Base64 for wider compatibility.

Convert Base2048 to Base64

Decode Base2048 (emoji) and re-encode as Base64 for standard transport.

Convert Base32 to Base64

Decode a Base32-encoded string into raw bytes and re-encode as Base64 for more compact representation.

Convert Base32 to Hex

Decode Base32 and re-encode as hex for debugging.

Convert Base58 to Base64

Decode Base58 and re-encode as Base64 for standard compatibility.

Base64 encode then decode round-trip

Encode text to Base64 and decode it back to verify the round-trip preserves the original data.

Convert Base64 to Hex

Decode a Base64 string into raw bytes and re-encode it as hexadecimal for inspection or interop.

Convert Binary to Hex

Decode a binary (base-2) string into its byte value and re-encode as hexadecimal.

Blowfish Encrypt then Base64

Blowfish encrypt then Base64-encode for text-safe transport.

ChaCha20 Encrypt then Hex

ChaCha20 encrypt then hex-encode the ciphertext.

DES Encrypt then Base64

DES encrypt then Base64-encode for legacy compatibility.

Encode a JSON payload for URL transport

Prepare a JSON document for a URL parameter: pretty-print, Base64-encode, then percent-encode — the exact inverse of the nested-parameter decode chain.

AES encrypt then Base64 encode

Encrypt plaintext with AES and encode the ciphertext as Base64 for text-safe transport.

Hash content and encode as Base64

Compute a hash of the input and encode the hash digest as Base64 for compact transport.

Hex encode then decode round-trip

Encode text to hexadecimal and decode it back to verify the round-trip preserves the original data.

Hex-encode text and analyze

Convert text to its hexadecimal representation then compute character statistics on the hex output.

Convert Hex to Base64

Decode a hexadecimal string into raw bytes and re-encode it as Base64 for compact transport.

HMAC Sign then Base64 Encode

Generate HMAC signature then Base64-encode for API auth headers.

Morse Encode and Base64 Transport

Encode text as Morse code then Base64-encode for digital transport.

Convert Multibase to Hex

Decode multibase and re-encode as plain hex.

Convert Octal to Hex

Decode octal and re-encode as hex for compact representation.

RC4 Encrypt then Base64

RC4 encrypt then Base64-encode for transport.

Reverse text and show hex encoding

Reverse a string then inspect its hexadecimal representation — useful for debugging byte-order issues and encoding puzzles.

RIPEMD-160 Hash then Base64

Compute RIPEMD-160 hash then Base64-encode for transport.

SHA-512 Hash then Hex Encode

Compute SHA-512 hash then encode as hex for readability.

Shuffle Text and Base64 Encode

Shuffle text characters then Base64-encode the result.

Unicode Escape and Base64 Encode

Unicode-escape text then Base64-encode for ASCII-safe transport.

Decode URL and show hex bytes

Percent-decode a URL-encoded string then view its hexadecimal byte representation for low-level analysis.

URL Encode then Base64 Double Encode

URL-encode then Base64-encode for double encoding in API payloads.

Encode a text payload for URL transport

Percent-encode text then show its hex representation for safe URL parameter transport.

UUencode then Base64

UUencode text then Base64-encode the result for double encoding.

Generate UUID and Base64 Encode

Generate a UUID then Base64-encode it for compact storage.

XXencode then Hex

XXencode text then hex-encode the result.

Learn more

Want to understand why?

Base64 vs Base32 vs Base58

Compare three popular base-encoding schemes and learn when to choose each one.

Base64: how it works and when to use it

The byte-to-character mechanics behind Base64, why padding exists, which alphabet variants you will meet, and the boundaries where Base64 is the wrong tool.

Base128 maps binary data onto 128 ASCII characters, carrying 7 bits of payload per byte for an expansion of about 8/7.

Base64 maps arbitrary binary data onto 64 printable ASCII characters (A-Z, a-z, 0-9, +, /) so that binary data can travel over text-only channels.

Related tools

Encode text or binary data to Base64 online. Free, private, and 100% client-side.

Encode text to hexadecimal online. Free, private, and 100% client-side.

Decode Base64 data back to readable text online. Free, private, and 100% client-side.