ai-agent

Proposal Arraybuffer Base64

Name: Proposal Arraybuffer Base64
Author: tc39

TC39 proposal for Uint8Array<->base64/hex

281 stars14 forksHTMLUpdated 10/28/2025100% free · open source

What it does

The proposal-arraybuffer-base64 tool enables conversion between Uint8Array and base64 or hex strings in JavaScript, making it easier to work with binary data in web applications.

When to use it

•When you need to convert binary data from an API response to a base64 string for image processing
•When you want to store binary data in local storage as a base64 string
•When you need to convert a hex string from a cryptocurrency transaction to a Uint8Array for further processing

Ready-to-paste prompt

const uint8Array = new Uint8Array([1, 2, 3]); const base64String = uint8Array.toString('base64'); console.log(base64String);

Heads up: This proposal is not yet implemented in all JavaScript environments, so you need to check the support in your target environment before using it in production.

Saves to your device

Use with Claude

New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

✅ Light setup

Installs with a command or two; your AI agent can do it for you.

Try it instantly — no install

Claude Code

mkdir -p ~/.claude/skills/proposal-arraybuffer-base64 && curl -fsSL https://workflowstacks.com/api/skills/proposal-arraybuffer-base64/claude-skill -o ~/.claude/skills/proposal-arraybuffer-base64/SKILL.md

Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)

claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

How Proposal Arraybuffer Base64 works

Codeflow

Free to inspect

Proposal Arraybuffer Base64 is a small HTML project (~650 lines across 5 code files). Setup is light: install Node.js, run one command. Last commit 11 months ago, MIT license, no tests found.

Size

Small codebase

~650 lines · 5 code files · 6 min skim

Setup

Light setup

Install Node.js, run one command.

Runs on

Node.js

No API keys detected

HTML 37%JavaScript 34%CSS 29%

Where to start reading

1
README.md
Start here — what it does and how to install it
2
package.json
Dependencies and the commands it exposes

What's in each folder

playground/Examples you can copy6 files

scripts/Helper scripts1 files

.github/CI / automation (GitHub Actions)2 files

READMENo tests foundThin docsCI checksMIT licenseLast update 11 mo agoArchived — read only

Use with Claude

New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

✅ Light setup

Installs with a command or two; your AI agent can do it for you.

Try it instantly — no install

Claude Code

mkdir -p ~/.claude/skills/proposal-arraybuffer-base64 && curl -fsSL https://workflowstacks.com/api/skills/proposal-arraybuffer-base64/claude-skill -o ~/.claude/skills/proposal-arraybuffer-base64/SKILL.md

Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)

claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

Quick Actions

Details

Creator

tc39

Language

HTML