What Are BRC-20 Tokens?

A Beginner’s Guide to Bitcoin’s First Fungible Token Standard

When people think of Bitcoin, they often think of it as “digital gold” — a store of value, not something that can host token ecosystems like Ethereum. But in 2023, that all changed with the creation of BRC-20 tokens — a simple yet powerful experiment in bringing fungible tokens to Bitcoin.

Here’s what BRC-20 tokens are, how they work, and why they’ve kicked off a new era of Bitcoin innovation.

The Basics

BRC-20 is an experimental token standard on Bitcoin that allows for the creation and transfer of fungible tokens using Ordinals inscriptions.

It was introduced by a pseudonymous developer named Domo in March 2023, as a way to prove you could do ERC-20–style tokens without smart contracts, using only JSON text files inscribed on satoshis.

How Do BRC-20 Tokens Work

Instead of using code to define how a token behaves (like on Ethereum), BRC-20 tokens work by:

  1. Inscribing JSON files onto individual sats (via the Ordinals protocol)

  2. Each file represents an action:

    • "deploy" a token

    • "mint" new supply

    • "transfer" between wallets

These inscriptions are stored permanently on Bitcoin and interpreted by compatible wallets and marketplaces.

🧠 Note: BRC-20 tokens do not use smart contracts. Everything is stored as data on-chain, making the system more transparent — but also more clunky and limited.

Why BRC-20 Tokens Took Off

Despite their limitations, BRC-20 tokens exploded in popularity due to:

  • Simplicity — no smart contracts, just data files

  • True on-chain permanence (stored on Bitcoin itself)

  • Massive speculation on early meme tokens (like $SATS and $PEPE)

  • Community-driven experimentation

Within months, BRC-20 markets had over $1 billion in volume.

What Can You Use BRC-20 Tokens For?

While many are still meme-based, use cases are growing:

  • Community coins (for fanbases, creators, DAOs)

  • In-game currency for Bitcoin-native games

  • Access tokens for exclusive content or groups

  • Airdrops and marketing campaigns

They can also serve as training wheels for future, more advanced Bitcoin tokens like Runes.

Limitations to Know

Because BRC-20 wasn’t built for scale:

  • They’re inefficient (lots of JSON file bloat)

  • Require off-chain indexers to track balances

  • High gas fees during minting booms

  • Still experimental — not a finalized Bitcoin standard

How to Explore BRC-20 Tokens

You can browse BRC-20 tokens at sites like:

You can also buy, sell, or create your own BRC-20 tokens using wallets that support them like Xverse, Hiro, and Unisat.

If you're curious about how to buy, where to find, and how to protect BRC-20 tokens, we’ve written a full step-by-step guide for you.

What's Next?

BRC-20 was just the beginning. It opened the door for standards like:

  • Runes – more efficient, cleaner token model

  • ARC-20 – for tokenizing on Stacks layer

  • CBRC-20 – using inscriptions with added compression

Still, BRC-20 has carved out a place in Bitcoin history — as the first real wave of token speculation, community coins, and creative chaos directly on-chain.

Want to go deeper? Follow us at 21MillionBTCs.com — your signal source for BRC-20 tokens, Bitcoin culture, and escaping the fiat hamster wheel.