Is private keys enough to call wallet non custodial?

[Emjay24]

Holding the private keys is the definition, but it is the minimum, not the whole picture. A wallet is genuinely non-custodial when it cannot move your coins without your signature and nothing else: no server-side freeze, no admin key over your funds. How the keys are generated matters too.

There is only one way to verify all of these, and that's if the wallet is open-source. Open-source non custodial wallets are considered the safest since the codes are verified by independent auditors, making it easier to find and report vulnerabilities as well as verify their non-custodial claims. I always prefer reputable bitcoin only wallets for my bitcoin and cold storage for my major holdings.

[AprilioMP]

I want to know because their are some non custodial wallet they have features like exchange. In trust wallet they have the buy and sell options. Does private keys completely makes a wallet as non custodial or their is more to this.

Even though I’m a bit late to the conversation, I want to reiterate that Trust Wallet is not a good wallet for storage. There’s no guarantee that your private keys are secure there. If a wallet offers trading features, it’s better to use a platform whose primary function is trading—that is, an exchange—rather than the wallet itself.
There are many factors to consider when using Trust Wallet. Remember, I’m not trying to say that Trust Wallet is bad, but many users have shared their experiences with it.

[SeriouslyGiveaway]

Even though I’m a bit late to the conversation, I want to reiterate that Trust Wallet is not a good wallet for storage. There’s no guarantee that your private keys are secure there. If a wallet offers trading features, it’s better to use a platform whose primary function is trading—that is, an exchange—rather than the wallet itself.

It's not a good wallet to use, not only for storage because saying like you did can make people thinking like if they only use Trust wallet for swaps, it's good. It's only bad and not recommended for long term storage, and if people think this way, they're wrong and will make terrible practice.

Storage starts immediately at a time you fund a wallet, risk appears since that wallet topping up time. If you store your fund in a wallet a longer time, it has bigger risk especially with Trust wallet.

Fund storage needs to be done rightly with key management.
The dos and don'ts of bitcoin key management.

[Patikno]

I want to know because their are some non custodial wallet they have features like exchange. In trust wallet they have the buy and sell options. Does private keys completely makes a wallet as non custodial or their is more to this.

Essentially, a non-custodial wallet means you have full control over your wallet, and no one else can access it; provided you safeguard it properly. Beyond that, it depends on whether you choose to generate your wallet on a secure platform; this is why it is crucial to opt for a fully open-source wallet. With open-source wallets, you can inspect and verify the code, ensuring transparency regarding the programming behind the wallet. In contrast, with closed-source wallets, you cannot examine the hidden code. Therefore, please choose your wallet wisely.

For references, you can view a list of wallets, here :

➥ LIST Multicoin Open Source Wallets - by @dkbit98

➥ Bitcoin open source wallets that support replace-by-fee (RBF) - by @Charles-Tim ( You might need an open-source Bitcoin wallet; that supports Replace-by-Fee for Bitcoin transaction, and you can also find some very helpful guides in the thread )

By the way, you should also review these references carefully, as there may be updates regarding these wallets; that have not yet been reflected in the list.