LaunchLab Create

LaunchLab Create opens a coin on Raydium LaunchLab under Raydium’s own platform, where the curve is yours to shape. You set the graduation target, the share of supply sold on the curve and the total supply, on SOL or USD1, and the page checks them against Raydium’s limits before you sign one transaction in your own wallet.

LaunchLab Create j.tools/en/tools/launchlab-create

Open tool

LaunchLab Create 0.05–0.15 SOL Platform fee

Open tool

Platform fee

0.05–0.15 SOL

Network fee, rent and your creator buy are separate.

When this tool fits

#when-this-tool-fits

• You want to choose how much the curve raises before graduation, instead of a fixed launchpad target.
• You want to decide how much of the supply sells on the curve and how much seeds the Raydium pool, or launch with a supply other than 1 billion.
• You want a 0.05% creator fee on every curve trade, collected in your creator vault.
• You want an address ending in ray and want to see it before you sign.
• You plan to buy from several wallets in the opening block. LaunchLab Create & Bundle Buy does that with the same form.

Before you start

#before-you-start

• A connected wallet (how to connect) or a key entered through Local Signer. It pays the platform fee, the rent for the new accounts and metadata and the priority fee, and the page keeps 0.01 SOL of headroom on top.
• The creator buy is paid in the pair asset: SOL from your SOL balance, or USD1 on a USD1 pair. The page reads the USD1 balance before Launch opens.
• Your curve numbers: a target, a curve share between 51% and 85%, and a supply between 10 million and 1 trillion tokens.
• A logo in PNG, JPG, GIF or WEBP, up to 5 MB, and a final name and symbol. The metadata cannot be changed after the create.

Use only short-lived operational wallets; never enter a seed phrase or a long-term wallet key.

Use

• Only short-lived operational wallets

Never enter

• A seed phrase
• A long-term wallet key

How to use it

#how-to-use-it

1. Shape the curve

   Under Pair asset, pick SOL or USD1. Choose a Graduation target or enter a Custom one, set how much of the supply sells under Supply sold on the curve, and enter the Total supply.

2. Describe the coin

   Connect a wallet in the top bar. Enter the Token name and the Symbol and upload the Token logo. A Description and Social links (website, X, Telegram) are optional.

3. Sign and go live

   Turn on Creator buy and enter an amount if you want the first bag, then choose a Token address (CA) option and a Speed. Check the Cost breakdown, press Launch and approve in your wallet.

Key settings

#key-settings

• Pair asset: SOL (selected when the page opens) or USD1. Changing the pair resets the target to that pair’s default.
• Graduation target: How much of the pair asset the curve collects before the coin moves to a Raydium pool. On SOL the choices are 25, 50 and 85 SOL (85 to start), or Custom between 24 and 500 SOL. On USD1 they are 5,000, 12,500 (to start) and 25,000 USD1, or Custom.
• Supply sold on the curve: A slider from 51% to 85%, starting at 79.31%. The rest seeds the Raydium pool at graduation. A curve needs more than half the supply, and the SOL configuration keeps at least 15% for the migration pool, which is why the slider stops where it does.
• Total supply: In whole tokens, from 10 million to 1 trillion, 1,000,000,000 to start. Every LaunchLab coin has 6 decimals.
• Token name: Required. Up to 32 characters, and the field stops taking input at 32 bytes, because on-chain metadata counts bytes. An accented letter such as é or ş takes 2 bytes and an emoji takes 4.
• Symbol: Required, 1 to 10 letters and digits. Other characters are dropped and letters are uppercased as you type.
• Description: Optional, up to 500 characters, stored in the metadata.
• Token logo: Required. A PNG, JPG, GIF or WEBP up to 5 MB that the browser can draw.
• Social links: Optional website, X and Telegram. Each one is a full https:// link: X on x.com or twitter.com, Telegram on t.me, with the account after the host. A link that does not fit turns red and holds the button.
• Creator buy: Off by default, with an empty amount, so the page never buys from a prefilled figure. Turned on, it needs an amount in the pair asset, and switching the pair empties it. Under the field you see about how many tokens you get and what share of supply that is.
• Token address (CA): Random address is free and created when you sign. Ready custom address reserves a pre-ground address ending in ray and holds it for you until you sign; Another address swaps it, and the card reads Out of stock when the pool is empty. Grind an address searches for your own prefix and suffix in your browser (base58 letters, up to 7 in total), with a Case sensitive switch and a CPU cores setting. Each extra letter makes it about 58 times slower. Both custom options add 0.1 SOL.
• Speed: The priority fee per compute unit: Normal, Fast (the default), Turbo, or Custom with a SOL amount. With a creator buy the presets come to about 0.00026, 0.0013 and 0.0052 SOL. Without one they are about 0.00016, 0.0008 and 0.0032 SOL.
• Platform tabs and Tool switch: The tabs at the top move between StonkFun, Bonk.fun and LaunchLab, and Single wallet / Bundle opens the bundle version of the same launchpad. Each one is its own page.

Fees and costs

#fees-and-costs

Caution

About fees. Every action has two costs: the Solana network fee paid to validators, and the J Tools platform fee. The platform fee always shows in the app before you confirm, and nothing is charged until you sign. Fees can change over time, so trust the in-app summary rather than a number you saw once.

Cost	Amount
J Tools platform fee	0.05 SOL per launch
Ready ray address or ground address	+0.1 SOL
Priority fee	Set by Speed, shown as its own line
Creation (network rent)	Rent for the new coin’s accounts and metadata, priced at today’s rent rate
Creator buy	The amount you enter, in SOL or USD1. It buys tokens and is not a fee
LaunchLab curve fee	1.05% of every curve trade, your creator buy included: Raydium 0.25%, platform 0.75%, you 0.05%. None of it goes to J Tools

The 0.05–0.15 SOL range is the J Tools fee alone: 0.05 SOL on every launch, plus 0.1 SOL when you take a ready or ground address. It is a visible SOL transfer inside the create transaction you sign, and J Tools takes no share of your buy.

Total from your wallet adds the lines up. Once the form is complete, the page simulates the create with your own inputs and shows what your wallet will actually lose; until that answers, the figures carry ≈. On a USD1 pair the total reads as the USD1 amount plus the SOL. After the launch, the success window reads the real outflow from the confirmed transaction. For the current numbers, see the fee schedule.

How it works

#how-it-works

• One transaction. The create, your optional creator buy and the platform fee travel together, built in your browser and signed once. All of it lands or none of it does.
• Raydium’s own platform. The launch is made under Raydium’s LaunchLab platform, the one that lets a launch shape its curve. The market card marks it Open on Raydium and lists the curve fee split.
• Limits checked on the page. A target, curve share or supply outside Raydium’s limits keeps Launch closed and names the problem in the market card, before anything is signed.
• Checked before your wallet sees it. The page simulates the transaction first. Your wallet signs, then the new mint’s key signs, and the page sends it and waits. The process window moves through Preparing the launch, Waiting for your wallet, Sending to the chain and Waiting for confirmation.
• A tight floor on your buy. Nobody can trade ahead of your buy, so its quote is exact, and the buy allows only a 1% rounding margin.
• Graduation. When the curve collects its target, Raydium moves the coin into a CPMM pool with the rest of the supply, and trading continues there.
• After the launch. The success window shows the address, your total buy and the share of supply you hold, and Open on Raydium LaunchLab takes you to the coin’s page.

How to use it

1. 1 Shape the curve
2. 2 Describe the coin
3. 3 Sign and go live

How it works

The create transaction is built the cost breakdown shows what leaves your wallet

1. 1 Logo and metadata uploaded metadata URI
2. 2 Optional: ready …ray or ground address …ray
3. 3 Raydium platform read, your curve checked 4Bu96Xj…REWcEfV4
4. 4 Priority fee set by your Speed preset SetComputeUnitPrice
5. 5 SPL mint, metadata and curve accounts created LanMV9s…ADduJ3uj
6. 6 Optional: creator buy in the same transaction same tx · 1% floor
7. 7 Platform fee added last as a SOL transfer SystemProgram.transfer
8. 8 Simulated before your wallet sees it simulateTransaction

Your coin is live on the curve you shaped raydium.io/launchpad

LaunchLab Create · circles are the steps in How to use it, squares the steps in How it works

Practical tips

#practical-tips

• Pick the target with the curve share. A smaller target graduates sooner. A larger curve share sells more of the supply before the pool, and a smaller one leaves more for the pool. The preview card shows To graduation as you change them.
• Collect your creator fee. Every curve trade sends 0.05% to your creator vault. You can claim it any time with Creator Fee Claim.
• Size the buy against a small target. With a low target, a large creator buy can fill the whole curve, and the page refuses that.
• Tune speed to the moment. Turbo earns its fee in a busy launch window. On a quiet network Normal lands and costs less.

Before you sign

#before-you-sign

Check Total from your wallet in the Cost breakdown, and the target, curve share and supply in the market card. Once the ≈ mark is gone, the total is what your wallet will lose. The app is the current source of truth for amount, fee and route.

Common issues

#common-issues

• The target must be between 24 and 500 SOL. A Custom SOL target is empty or out of range. Enter a number inside it.
• Enter amounts as plain numbers, like 0.5. A custom target or an amount has a character the page does not read as a number.
• Supply must be between 10 million and 1 trillion tokens. Change Total supply.
• Add a name, a symbol and a logo. One of the three is missing, or the name or symbol is empty after trimming.
• That image will not work. The logo is not a PNG, JPG, GIF or WEBP the browser can draw. Pick another file.
• The file is too big. The logo is over 5 MB. Compress it and upload again.
• Enter the full address starting with https://. A social link is a handle or lacks https://. Paste the full link, like the example under the field.
• Enter the amount for the creator buy, or turn the buy off. Creator buy is on with no amount.
• This buy is too small to get any tokens after the curve fee. Raise the creator buy.
• These buys would take the whole curve. Lower the buy or raise the target.
• Not enough in your wallet. The window shows your balance, what the launch needs and how much is missing. Top up or lower the creator buy.
• Your wallet does not hold enough USD1 for the creator buy. The page reads the balance again every 15 seconds while it is short, so Launch reopens after a top-up.
• Pick or finish the token address first. A ready address is still being reserved, or a grind is still running.
• Too many logo uploads. One connection can upload 100 logos a day, with a per-minute limit as well. The window says which limit you hit.
• A launch is already running. One launch runs at a time in your browser, across tabs. Wait for it to finish.
• Launch not confirmed yet. Your wallet signed and the launch went out, but the page could not confirm it. Open Check the transaction before you launch again, or you could pay twice.
• The launch reached the chain and the program refused it. Only the network fee left your wallet.
• You rejected the signature in your wallet. Nothing was sent.

Related tools

#related-tools

• LaunchLab Create & Bundle Buy
• StonkFun Create
• Bonk.fun Create
• Pump.fun Create
• Creator Fee Claim
• Multi Swap
• Bundled Trade
• Maker Bot
• Bump Bot
• Holder Snapshot

Note

About wallet warnings. Some tools bundle several instructions into one transaction, for example creating a token and its metadata together. Phantom can show a caution banner for these transactions, and where the tool tells you to expect one, it does not mean something is wrong. Read what you are signing, then approve if it matches what you set up. If a warning appears that the tool did not mention, decline it and tell support.

Tip

J Tools is non-custodial. We never store your wallet’s private keys and never ask for your seed phrase. Every transaction you approve in a connected wallet is signed inside that wallet, and its key never reaches our servers. A few multi-wallet tools do let you paste private keys for throwaway hot wallets, which stay in your browser tab and sign there. Holder Booster is the one tool that hands a key to our worker: the fresh distributor wallet it creates for each run, sent encrypted. Never paste a key tied to long-term holdings, and if a page ever asks for your seed phrase, stop and close it.

Help

#help

Fees and safety · All tools · Support