What a bundle launch is
A Jito bundle is a list of up to 5 transactions that a Jito validator runs in order, one after another, in a single block. If any of them would fail, the validator drops the whole bundle, so either everything happens or nothing does. The validator is paid with a tip, a small SOL transfer inside the bundle. Pump.fun bundlers compared puts this next to other bundlers on price and buyer count.
This tool fills that bundle with a pump.fun launch. The first transaction creates the coin with pump.fun's create_v2 instruction, makes your dev buy and pays SOLTidy's fee. Up to 4 more transactions follow, each carrying the buys of up to 4 other wallets (3 in the last one, which also carries the tip). That is up to 16 buyers in total: you plus 15 wallets.
Because the order is fixed, every buy's price is known before you sign. Each buy moves the bonding curve, so the tool quotes the wallets one after another on the curve the previous buys leave behind, and every buy carries a maximum cost so it fails, taking the bundle with it, rather than overpay.
| Transaction | Signed by | Contents |
|---|---|---|
| 1 | Your connected wallet and the new mint | Create the coin, your dev buy, SOLTidy's 0.3 SOL fee |
| 2 to 4 | The buyer wallets in it | Up to 4 buys, each with its own token account |
| Last | The buyer wallets in it | Up to 3 buys and the Jito tip |
Bundled supply is public, so use it honestly
A bundle doesn't hide anything. Every wallet in it buys in the coin's first block, and that is easy to see: pump.fun's holder list, Solscan, and screeners like RugCheck, Bubblemaps and GMGN show which wallets bought at launch and how much of the supply they hold, and label it as bundled. Many traders avoid coins with a large bundled share, and the tool shows that share before you launch.
Legitimate uses are buying for your own team, treasury or marketing wallets at the launch price, and doing it in the open. Don't use bundling to make a coin look more popular or more widely held than it is, to fake demand, or to sell the bundled tokens on buyers who didn't know about them. That misleads people, and in many places it can break market manipulation and consumer protection laws.
Before you launch, you can check how the result will look with the rug check, and after launch you can move the tokens to one place with the wallet consolidator.
Costs, keys and what can go wrong
Example: a 0.5 SOL dev buy plus 15 wallets at 0.2 SOL each is 3.5 SOL of buys, 0.3 SOL to SOLTidy and a 0.001 SOL tip. pump.fun's trading fee (as of November 2026, 0.95% protocol plus 0.30% to you as the creator) is taken out of each buy, and the curve still needs about 85 SOL in total before the coin graduates to PumpSwap.
Your wallet pays SOLTidy's 0.3 SOL fee, your dev buy and a few thousandths of a SOL for pump.fun's accounts. Each buyer wallet pays its own buy, about 0.0015 SOL for its token account and a share of the network fee. The wallet that pays the Jito tip is the first one in the last transaction. pump.fun's trading fee is included in every buy amount. Fund the buyer wallets first, for example with the multisender.
The private keys you paste are used only in your browser, to sign the buyer transactions. They are never sent to SOLTidy or anyone else, never stored, and are wiped from memory after signing and when you clear the field or leave the page. Only the signed transactions go to Jito, through a small SOLTidy forwarder that never sees a key.
A bundle can fail to land if the tip is too low when the network is busy, if a buy would cost more than its slippage cap, or if you take longer than about a minute to approve and the blockhash expires. In every case nothing happens on chain and no SOL leaves any wallet. Try again; the tool keeps the same coin address, so a retry can never create a second coin.
Questions & answers
Can people see that my launch was bundled?
Yes. Every bundled wallet buys in the coin's first block, and pump.fun's holder list, Solscan and screeners like RugCheck and Bubblemaps show it and flag the bundled share of supply. A bundle makes your launch buys atomic, not invisible.
How many wallets can buy in one bundle?
Up to 16: your connected wallet with the dev buy plus 15 buyer wallets. Jito allows 5 transactions per bundle and each transaction fits 4 buyers within Solana's 1,232-byte limit, 3 in the last one because it also carries the tip.
What happens if the bundle doesn't land?
Nothing. A bundle runs completely or not at all, so no coin is created, no buys happen and no fee or tip is paid. Try again with a fresh blockhash, or raise the Jito tip if the network is busy.
Are my private keys safe?
They stay in your browser tab. They're used to sign the buyer transactions locally, never sent or stored, and wiped after signing, on Clear and when you leave the page. Still, use wallets made for the launch, not wallets that hold savings.
Why does my wallet only sign and not send?
All transactions must reach Jito together, so your wallet signs the create transaction and SOLTidy adds it to the bundle with the others. Your wallet may show a sign-only request; it's the same transaction you reviewed.
Is there a fee?
A bundle launch costs SOLTidy's flat 0.3 SOL, paid by the creator wallet inside the create transaction, so it's only charged if the bundle lands. You also pay the Jito tip you choose (0.001 SOL by default) and pump.fun's normal trading fee on every buy. pump.fun charges nothing to create the coin.
