hashraw.com

What It Is

HashRaw is an open-source web-based Bitcoin wallet and raw transaction tool. The site states that it is written in JavaScript and released under the MIT License. It is not an exchange and does not offer an order book or trading pairs; instead, it focuses on lower-level Bitcoin operations such as address generation, private keys/WIF, raw transaction creation and signing, multisig, verification, and broadcasting.

Core Features and Security

In terms of functionality, HashRaw supports Legacy, SegWit, and Bech32 addresses, as well as multi-input/multi-output transactions and multisig addresses with up to 15 public keys. Users can decode raw transactions, redeem scripts, public keys, HD addresses, and WIF keys, and can choose from different networks for broadcasting and UTXO lookups. Its main security claim is that private keys are generated and used for signing locally in the browser, and the text says the server does not receive private keys. Users can also download the page for self-hosting or offline use, which is valuable for cold signing and manually building transactions. However, the page does not disclose cold-wallet custody arrangements, insurance, audit reports, or the operating entity. Using a web-based private key tool still requires strong caution against phishing and code tampering.

Pricing and Compliance

Standard functions such as address generation, transaction creation, and verification do not show any fees, and the project emphasizes that it is open source and free to use. A special double-spend transaction service is paid: the service fee is 10% of the input amount, with a minimum of 0.005 BTC and a maximum of 0.05 BTC, and it is non-refundable. The service description explicitly states that it is used to generate and broadcast double-spend transactions and supports only BTC, which carries significant compliance and ethical risks. The site does not provide information on KYC, licenses, country of registration, AML policies, or fiat deposit/withdrawal channels.

Pros, Cons, and Who It’s For

Its strengths include being open source, offline-capable, locally signed, and supportive of multiple address formats and multisig. It is suitable for developers, advanced Bitcoin users, security researchers, or anyone who needs to manually construct transactions. Its drawbacks are that the interface is highly technical and not beginner-friendly; it lacks customer support, company, and compliance information; and the double-spend service presents obvious risks. If ordinary users simply want to store BTC, Electrum, Sparrow Wallet, Bitcoin Core, or a hardware wallet would generally be more appropriate.

Access from China

The scraped text does not provide information on access from mainland China, Chinese-language support, or payment channels, so its accessibility in China can only be assessed as unknown. Since it has no fiat on-ramp, it is also not suitable as a tool for buying or selling BTC with RMB. Chinese users who choose to use it should preferably run it offline and verify the source of the code.