Mainframe / day 41

Just like humans, applications need secure and private communication channels. Currently, Internet and the TCP/IP protocol can easily fall victim to attacks, surveillance and censorship. Mainframe is solving this problem using blockchain, encryption and dark routing.

ETH Gas Station

ETH Gas Station / day 40

User oriented, real-time metrics on gas price, wait times, and miner policies on the Ethereum network. Features: Recommended Gas Prices, Confirmation Time by Gas Price, Transaction Count by Gas Price.


CryptoCribs / day 39

Travel the globe. Pay in crypto. CryptoCribs makes traveling more affordable and interesting for the global crypto community. You securely operate your own crypto wallet and control all transactions. No unwanted charges to your credit card.


Ethervis / day 38

Interactive Ethereum address explorer that helps you visualize easier the connections between addresses based on frequency of the transfer and the amounts swapped. You can filter by balance, volume and link distance.

Crypto Banks

Moon Banking / day 37

Moon Banking is taking feedbacks from users on how friendly each bank is with cryptocurrencies. You can check score and stories from other users that interacted with the specified bank.

wei convert

ETH Converter / day 36

A simple tool to convert between the different ethereum units. Also very useful to estimate a transaction max gas cost (gas_price * gas_limit). Some wallets ask gas in wei, while others in gwei.


Oraclize / day 35

Smart contracts are not connected with the world outside the blockchain. Oraclize is a data carrier and reliable connection between DApp and Web APIs.


Binance / day 34

Binance is an exchanger very well connected to the needs of crypto traders. It is capable of processing 1,400,000 orders per second. Binance is more than a simple exchange, it has Research Labs, LaunchPad, coin of the month and Info Platform.


Epoch Converter / day 33

A very simple and useful tool to convert timestamps from smart contracts and transactions to human readable form. Epoch is the number of seconds elapsed since since January 1, 1970.


Status / day 32

With Status your mobile device becomes a light client node on the Ethereum Network, enabling you to access Ethereum’s entire ecosystem from anywhere.

ERC Tokens

Token Standards Comparison / day 31

ERC-20 is the Standard Token and the most adapted, but there are other options too: ERC-223, ERC-677, ERC-777. Check out the comparison to see the pros and cons for each of them.


Oracles / day 30

POA Network is an open Ethereum sidechain with Proof of Authority consensus, reached by independent validators. Yes, it sounds more centralized than the classical Proof of Work consensus but the compensation for this is speed.


Clearify / day 29

Remember when you want make a crypto payment, but you are unsure the destination address is what it claims to be? Users can visit to search a cryptocurrency address for verification. Very useful in ICOs.


TomoChain / day 28

TomoChain plans to add horizontal scaling via adding more second layer blockchains. TomoChain will support all Ethereum smart contracts. Cross-chain transactions are free very fast: 2 seconds confirmation time. With TomoApp you can mine coins by doing media contributions.


ETH VPN / day 27 offers decentralized VPN powered by Ethereum. Unlike Mysterium and other projects that use tokens and are under development, EthVPN is already a working product. Works on Windows, OSX, iOS, and Android.


Augur / day 26

Augur is a prediction market platform that rewards you for correct predictions of future events such as: politics, weather, sports, cryptocurrencies, stock markets, etc. Prediction markets are generally more accurate at forecasting the future than individual experts or surveys.

Bancor Protocol

Bancor Protocol / day 25

Bancor Protocol allows you to convert between any two tokens on the network, with no counterparty, at an automatically calculated price using built-in liquidity feature.

Raiden Network

Raiden Network / day 24

Ethereum scalability could be solved by different approaches. Raiden is an off-chain solution, for near-instant, low-fee and scalable payments. I It works for ETH and any ERC20 compatible token.

Self Key

IPFS / day 23

IPFS is the Distributed Web - a P2P hypermedia protocol to make the web faster, safer, and more open. IPFS is aiming to replace HTTP and build a better web where information is faster and permanent. They believe too much useful information is lost every day because some websites are no longer maintained because of various reasons.

Self Key

Self Key / day 22

SelfKey is a decentralized digital identity system that allows individuals and companies to truly own, control and manage their digital identity. They offer an Identity Wallet and a Marketplace where you can set up businesses open bank accounts or get a passport.

Ether Delta

Ether Delta / day 21

Etherdelta is a fully decentralized exchange. This means that your funds will be either in your own wallet or in a trustless smart contract. You don't have to trust the administrator or the other party you are trading with.

Name Bazaar

Name Bazaar / day 20

Anyone can register a .eth domain name for themselves by participating in an auction process, mediated by the blockchain. Name Bazaar is a peer-to-peer marketplace for the exchange of names registered via the Ethereum Name Service.


Grafiti / day 19

With Grafiti you can post messages, poems and images on the Ethereum Blockchain. They are uncensorable and preserved forever in the blockchain. You have to pay the gas fees, which is also a good anti-spam measure.


Crush Crypto / day 18

An excellent site to learn about cryptocurrency investing. You will find ICO reviews, coins & tokens reviews, market updates. Crush Crypto is claiming to provide you with objective and fundamental analysis.

Basic Attention Token

Basic Attention Token / day 17

From the creator of JavaScript and the co-founder of Mozilla and Firefox, BAT is a project that could finally solve the problem of digital advertising that is currently overrun by middlemen, trackers and fraud.


Ethlance / day 16

Hire or work for Ether cryptocurrency. Benefits: 0% service fees, fully decentralised on blockchain, no restrictions, free membership. Freelancers and employers can finally meet on a decentralized platform.


Remix / day 15

Remix is an IDE for the smart contract programming language Solidity and has an integrated debugger and testing environment. Developing smart contracts requires a good understanding of the Ethereum blockchain technology.


Rinkeby / day 14

Before going live on Ethereum Network with a contract, you may run it on Rinkeby Test Network. To get free test Ethers you can use the Crypto Faucet which can give you upto 9 test Ethers/day. You can also use this to test wallets/automation scripts/etc.


Infura / day 13

Infura was born with the goal of delivering stable and reliable RPC access to the entire Ethereum ecosystem. In 2017, Infura relayed over 7 million ETH.

Coin Payments

Coin Payments / day 12

CoinPayments is an integrated payment gateway for cryptocurrencies such as Ethereum and Bitcoin. They are offering plugins for all the popular webcarts used today.


Geth / day 11

Go Ethereum is one of the three original implementations of the Ethereum protocol. It's very flexible and you can use it for various purposes: mining, running a full node, running a text-mode wallet, RPC integration, etc.


Golem / day 10

Golem is a global, open source, decentralized supercomputer that anyone can access. It is made up of the combined power of users’ machines, from PCs to entire data centers.


Solidity / day 9

The main novelty of Ethereum as blockchain is smart contracts. Solidity is a contract-oriented, high-level language for implementing smart contracts.

Ethereum DApps

State of DApps / day 8

DApps are decentralized(often called unstoppable) applications. Ethereum has the most rich ecosystem of DApps. State of DApps lists the most important and their current stage of development.


Metamask / day 7

MetaMask is a bridge that allows you to visit the distributed web of tomorrow in your browser today. It allows you to run Ethereum dApps right in your browser without running a full Ethereum node.

Vitalik Buterin

Vitalik Buterin / day 6

Meet Vitalik Buterin, the creator of Ethereum. Unlike in Bitcoin where Satoshi Nakamoto could be a made-up name, creators of Ethereum are well known: Vitalik Buterin, Gavin Wood, Jeffrey Wilcke, Joseph Lubin.

Ethereum Exchange

Ethereum Exchange / day 5

If you like Ethereum technology and you want to own Ether, you need an exchange where you can make a bank transfer and receive ETH. Kraken is simple and straight forward.

Coin Market Cap

Coin Market Cap / day 4

Cryptocurrency are known to be very volatile. Coin Market Cap is a tool that aggregates prices from all important exchanges and calculates a median value for each coin. You can also check historical data, circualting supply, 24h volume, top markets, social presence.

Ethereum Blockchain Explorer

Blockchain Explorer / day 3

Search Ethereum Blockchain for confirmed transactions, gas prices, block times, smart contracts, tokens, pending transactions pools, network dificulty, hash rate or verify signatures.

Ethereum Web Wallet

Ethereum Wallet / day 2

Starting MyEtherWallet is as simple as opening any website, so it works on any device and on any operating system. It is very good for testing purposes and transferring small amounts. However, if you start operating larger amounts a hardware wallet is needed or at least a non-browser wallet.

Ethereum Guide

Ethereum Guide / day 1

Ethereum is an open-source blockchain featuring smart contract functionality. While Bitcoin is a first generation blockchain, Ethereum is considered v2. There are also some v3 attempts such as Cyperium, Wanchain, Cardano, Lisk but they are all in “under development” stage. Ethereum could also evolve to a v3.