Eth HodlerDApp
Introducing EthHodler, a simple, ownerless, non-profit, contract running on the Ethereum blockchain.

Why? Did you ever... Wanted to take break from trading? Take a break from checking the charts all the time?
Maybe the markets will look different in 30 days. Why not give this dapp a try and lock your ETH for 30 days now!

Connecting to Ethereum...
This page works only with an Ethereum Browser, such as MetaMask for Chrome or Mist (browser mode) or Parity Browser

Processing Transaction...
Your transaction is being submitted to the blockchain. Please wait until it is mined.

ETH Balance: 0 in your local wallet
You have ... EHDL tokens

Withdrawal status: determining...

Block number: 0

Note: You're using a TestNet (Reload the page if network changed)

Note: You're using an unsupported TestNet (Switch to Ropsten)

Contract Address: ?


1.29 EHDL
Tokens Created
Fee Pot
USD 313.04

Our favorite hodling period is forever.

- Warren Buffet

Hodl your tokens safely on one of these babies. Get one today!

Eth Hodler

A simple non-profit DApp & ERC20 token running on the Ethereum blockchain.


Tired of getting ICOs? Want to take a break from trading? Lock your ether and get HODL tokens in exchange.

Weak hands? You can use the Quick withdraw any time!

Get rewarded for hodling: 30 day withdrawal gets a chunk from the fee pot!

Safe, simple contract, audited by 3 independent Solidity developers, plus additional review by the community

Added 'Fee Pot' game element so it's a fun way to hodl!


Eth Hodler a simple contract that allows you to lock up Ether.
This contract has no owner and cannot be modified by anyone.

There are also some other features to make it more fun:

Each deposit to the Eth Hodler locks your ether and issues you with HODL tokens. These tokens
are then used to make a withdrawal and burned once the withdrawal is processed.

A normal withdrawal would take ~30 days to process, costing only the gas fee.
Should the holder want to withdraw their deposit early, they can, but
they must pay a %1 fee. The fees will be added to a fee-pot. Holders can claim
a chunk from the fee-pot, see the rules to find out how.

How To Use

This page is a DApp (Decentralized application) meaning that you'll need an Ethereum browser to use this.

The easiest way to get started is to download the MetaMask extension for Chrome.

MetaMask is currently probably the best way to use at this time as it offers the lest friction.


Visual Model

List of exchanges listing the EHDL token

EHDL tokens are trade-able too.

Security information:

Game theory analysis

Mist Wallet - instructions for the professionals

It's much easier to use an Ethereum Browser / MetaMask, but you can also use the Mist wallet by itself if you have the patience. (Or another non-browser wallet that supports contracts / tokens)

ABI / Json interface

Here is the Json interface. You may need this if you want to interact with the contract wallets such as Mist

Adding the contract to Mist
Mist Wallet - Interacting with the contract
Mist Wallet - Quick Withdrawal
Mist Wallet - Normal Withdrawal

Contract's Author

Reddit's Ethtrader member, /u/CurrencyTycoon/

Follow @CurrencyTycoon on Twitter


See Eth Hodler on Github.

Still haven't locked your ETH yet?

This cat did...

Lock your ETH meow!

Btw, this is EthHodler's own CryptoKitty #666628. It speaks Mandarin. 侬好哇!