Encode and decode binary data to and from mnemonic words using a base-256 encoding scheme.
Web Assembly streaming Opus decoder
Decode/encode normalized DecisionLog JSON into core operations. This layer is pure (no fs). Runtime checks included.
Object orient smart contract ABI data building/parsing.
DeepSeek-V4-Flash tokenizer for NodeJS/Browser
A robust & character encoding–agnostic JavaScript implementation of the `Quoted-Printable` content transfer encoding as defined by RFC 2045.
Zero-auth MCP server with everyday developer utilities: base64, UUID, hash, JWT decode, cron, timestamps, JSON, regex
A library for encoding and decoding lightning network payment requests as defined in [BOLT #11](https://github.com/lightningnetwork/lightning-rfc/blob/master/11-payment-encoding.md).
MozJPEG image encoder in WebAssembly
Subset of CBOR encoder/decoder with schema validation and type inference, designed for browser environments.
Percentage-encodes a single character.
moca binary codec
Flow SDK Decoder
A little bag of CSS superpowers
js base64 decode encode
Pure dependency-free helpers for Ethernauta — hex, bytes, BigInt, type guards.
Encode base-64 strings with JavaScript
sjcl ====
Encode and decode structured data to/from a binary buffer
Interoperable address utilities for cross-chain operations
Encode / decode MQTT packet from IoT devices to Web browsers.
Excellent ECMAScript MessagePack implementation for 85% of people.
TypeScript definitions for hex-to-uuid
[](https://www.npmjs.com/package/three-hex-tiling) [](https://twitter.com/ameobea10)