MCP server: encode/decode base64, base64url, hex, and percent-encoding.
encode/decode HELML data
Encode/Decode VietQR and VNPAY-QR
Encode & decode XML and HTML entities with ease & speed
Encode / decode MQTT packet from IoT devices to Web browsers.
encode/decode multiple data types
Compact protobuf-based binary serializer — fast schema-driven encode/decode for Node.js and the browser.
Base64 encode/decode from the command line. Supports file input and pipe mode.
Encode / decode unsigned BigInt as big endian
Emscripten bindings for libopus. Encode / Decode your audio to opus with pure JS.
OC8 PNG encode/decode helpers plus Rubik-style block scrambling utilities.
BitTorrent bencode encode/decode
Model Context Protocol (MCP) server for mate.tools — exposes 35 utility tools to Claude Desktop, Claude Code, Cursor, Windsurf and any other MCP-compatible AI agent. Includes: count-lines, base64-encode/decode, url-encode/decode, hash, password, password-
Type-safe conversion and manipulation of YDB values and types. Encode/decode between native JS and YDB, with full support for primitives and complex types.
NORAD Alpha-5 designator codec — encode/decode satellite catalog IDs between integers and the 5-character Space-Track format.
encode/decode Base64 for Koishi
Encode & decode lavaplayer tracks locally
Encode & Decode MIDI Sysex Messages
Encode, decode, and generate base-58 and base-62 identifiers. Convertible MongoDB ObjectIds!
encode/decode Tradle Iot message
Encode/decode color palettes in Adobe's .ase format
Json and base64 encode/decode.
HEX encode/decode in AssemblyScript
encode/decode an array of integers as varints.