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Privacy coins

How privacy coins work and where they are restricted.

Swapping tokens without a wallet connect prompt — the full guide to this subject.

Guides on this site

How to avoid swaps that quietly log your IP and browser

The only reliable way to avoid a swap site logging your IP and browser is to prevent the site from ever see...

How to compare privacy policies across swap services

You compare privacy policies across swap services by checking what data each service collects, how long the...

How to spot a swap service that might freeze your funds later

A swap service that will freeze your funds later usually shows its hand before you trade, in the fine print...

How to swap crypto directly from a hardware wallet

You can swap crypto directly from a hardware wallet without ever moving funds to a hot wallet or exchange a...

What a swap site can learn from your refund address

A swap site learns only what you choose to give it: a destination address for the asset you want, and a ref...

What happens to your data after a no-KYC swap is complete

The answer is short: the swap site deletes what it can, and keeps what it must. Most no-KYC services claim ...

What personal details does a swap site actually see when I trade without an account

When you trade on an accountless swap site, the operator sees your IP address, your browser fingerprint, an...

Why some no-account swaps still ask for an email

Some no-account swap sites ask for an email address to send a receipt or a status link, not to create an ac...

How CoinJoin Works for Bitcoin Privacy and Where It Falls Short

Bitcoin’s ledger is transparent. Every transaction, every address, every amount sits in the open for anyone...

How Ring Signatures Hide the Sender in Monero Transactions

A ring signature is not a Monero invention. The concept was described by cryptographers in 2001. Monero ado...

Why Monero Has a 10 Block Unlock Time Before You Can Spend

Monero enforces a 10-block waiting period before newly received funds can be spent. This is not a wallet bu...

Cake Wallet vs Monero GUI: Mobile Convenience or Desktop Control

Cake Wallet and the Monero GUI client represent opposing ends of the same coin: privacy. Both are non-custo...

Monero Full Node vs Remote Node Privacy and Trust Tradeoffs

Every Monero transaction must be checked against the network's rules. Someone has to do that checking. The ...

Monero Ring Size 16: Why the Default and What Changing It Does

Monero enforces a minimum ring size of 16 network-wide. This isn't a suggestion or a wallet setting you can...

Why exchanges delist privacy coins and what regulations drive it

Centralized exchanges delist privacy coins because they present compliance risks the platforms cannot easil...

How zcash shielded transactions use zero knowledge proofs

Zcash offers something most cryptocurrencies do not: the ability to prove a transaction is valid while reve...

Zcash Transparent vs Shielded Transactions Speed and Privacy

Zcash offers two fundamentally different address types. Transparent addresses (t-addresses) work much like ...

Swap crypto

Live rates · no account
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You send from your own wallet straight to the exchanger — nothing to connect, no account, and you stay on this page throughout. Rates are indicative until a swap is opened.

The swap is carried out by an independent exchanger and the deposit address above is theirs. holdium.xyz never holds, receives or controls your funds, has no key to that address, and earns a referral commission. Opening a swap sends your receiving address, IP, browser and timezone to the exchanger for their compliance checks; we store none of it. Check their terms, fees and country restrictions before sending anything.

Latest from holdium.xyz

How to avoid swaps that quietly log your IP and browser

The only reliable way to avoid a swap site logging your IP and browser is to prevent the site from ever seeing them. That means routing your traffic through a tool that strips or replaces this data before it reaches the exchanger.

How to compare privacy policies across swap services

You compare privacy policies across swap services by checking what data each service collects, how long they retain it, and whether they share it with third parties. The differences between services are often dramatic, and the phrasing of a policy can hide tracking that a competi

How to spot a swap service that might freeze your funds later

A swap service that will freeze your funds later usually shows its hand before you trade, in the fine print, the flow, or the support desk. The warning signs are concrete and checkable, so treat them as a checklist rather than a vibe.

How to swap crypto directly from a hardware wallet

You can swap crypto directly from a hardware wallet without ever moving funds to a hot wallet or exchange account. The site generates a transaction that sends your hardware-wallet coins to the exchanger, and the exchanger sends the swapped coins back to a receiving address you co

swapping tokens without a wallet connect prompt

Most token swaps you encounter online begin with a wallet connection request. Connect MetaMask, approve a signature, confirm a transaction. The pattern is so common that many users assume it is the only way. It is not. Holdium.xyz offers a different path: you send funds to an add

What a swap site can learn from your refund address

A swap site learns only what you choose to give it: a destination address for the asset you want, and a refund address if the swap fails. That is all. It does not learn your identity, your wallet balance, or your transaction history.

All guides →

Crypto news

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Crypto prices right now

Bitcoin (BTC)
$78,624
▼ -0.51% down 24h
Ethereum (ETH)
$2,464
▼ -1.95% down 24h
Solana (SOL)
$102.57
▼ -3.72% down 24h

How to convert crypto: on-chain vs off-chain

Off-chain (on an exchange)

Your trade happens inside the exchange's own ledger. Nothing touches the blockchain until you withdraw.

  • Cheapest and fastest for common pairs
  • Needs an account and usually ID verification
  • The exchange holds the coins until you withdraw them
  • Best for converting to and from cash

On-chain (a DEX or swap)

You swap from your own wallet. The transaction settles on the chain and you pay its fee.

  • No account, no custodian — you keep the keys
  • You pay network fees, which vary a lot by chain
  • Small or new tokens often only trade here
  • Slippage and thin liquidity are real costs on low-volume pairs
Before any on-chain swap: check the token's contract address against a block explorer, start with a small test amount, and review what you are approving — an unlimited token approval to an unknown contract is how most wallet drains actually happen.

Not financial advice. holdium.xyz publishes market data and general information about digital assets. Crypto assets are volatile and you can lose everything you put in. Nothing here is a recommendation to buy, sell or hold, and we make no price predictions.

Prices are sourced from third parties and may be delayed or wrong. Verify anything you intend to act on against a primary source.