What is Chromia (CHR)?

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Chromia is an open source public blockchain platform that enables decentralized apps (dApps) to be built and used. Chromia provides developers with a variety of tools to create dApps which can function on a private, public, or hybrid blockchain.

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Chromia’s mission is to make it easy for people to build dApps in the real world, for a better world.


Henrik Hjelte
Henrik Hjelte
Co-founder and CEO

Henrik made an appearance on Dragon’s Den by pitching an idea for a startup company that aimed to create freedom on the internet. Alex Mizrahi was also involved in this internet startup, and shortly after the appearance, Alex discovered Bitcoin. Henrik and Alex then came up with a new startup — that idea became ChromaWay and led to the creation of the Chromia platform.

Or Perelman
Or Perelman
Co-founder and COO

Or is featured in the very first article ever published about Bitcoin on TechCrunch and was the co-founder of one of the very first Bitcoin wallets. The other co-founder was Stephan Thomas, who would later become the CTO of Ripple.

Alex Mizrahi
Alex Mizrahi
Co-founder and CTO

Alex was the founder and lead developer of the first blockchain token protocol, Colored Coins. He worked with a young whiz kid who helped write parts of the Colored Coins whitepaper. That kid was Vitalik Buterin, and the next whitepaper that kid wrote happened to be for something called Ethereum.

Learn more about the Chromia team.

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CHR Use Cases


At Travala.com, we offer more than 3,000,000 travel products in over 230 countries available for purchase with CHR. Plus, you’ll receive a 2% giveback in AVA, Travala.com’s native cryptocurrency, on every accommodation booking.

Travala.com’s intuitive booking experience is designed to be familiar and simple to navigate. Travellers simply choose their desired travel product(s), enter their details, and select from the variety of available payment options, including traditional credit and debit cards, BTC, and 90+ other cryptocurrencies.

dApp Transaction Fees

Similar to how tokens are used in Ethereum to pay transaction fees and compensate block producers, CHR is used in Chromia to compensate block-producing nodes. In Chromia, fees are paid in CHR by dApps, though dApp developers are free to implement any policy they want, including collecting fees from users. Projects can also use CHR as reserves to peg their own tokens.

dApp Hosting Fees

Chromia offers several node classes based on resources allocated for an application to cater for the varying needs of dApps. The application hosting fee is paid in CHR by developers and is split into three components: percentage of processing time, number of transactions, and storage.

Node Incentives

CHR is used to make sure that providers have a stake in the Chromia ecosystem, offsetting incentives to collude. The locked CHR represents the provider’s stake in the Chromia economy and is used as collateral which is forfeited when nodes owned by a provider misbehave.

How to Pay with CHR

Visit Travala.com and search for a hotel, home, flight, or other travel product by entering your destination and dates.

Select your desired choice from the available options.

Enter the required traveller details.

Select Crypto as your payment method, then select CHR.

Click Complete Reservation. In your CHR Wallet, input the generated address by scanning the provided QR code or by copying the text. Ensure that the exact CHR amount is entered and send the payment.

Click Payment sent. Your transaction will be processed and you will receive a confirmation email once your voucher or e-ticket is available.

Buy, Sell and Trade CHR

Exchanges where you can buy, sell and trade CHR:

Store CHR

Store your CHR securely with the following wallets:

Are you an exchange or wallet provider that supports CHR? Contact us to have your platform added to the lists above.


What differentiates Chromia from other building platforms?

Chromia uses relational databases and the platform’s Rell programming language, which is deliberately similar to modern programming languages like JavaScript and Kotlin, making it simple to learn. Rell is also more efficient than many other blockchain languages as it permits fewer lines of code, allowing developers to code 7-10 times faster.

What applications have been built on Chromia?
How do nodes secure Chromia dApps?