Three steps from install to your first paper fill.
Install the extension
Add Papurrr from the Chrome Web Store. One click, and Chrome keeps it updated for you.
Open Hyperliquid
Go to app.hyperliquid.xyz and connect any wallet. An empty wallet works. Your paper account opens with $10,000. No account yet? Create one through Papurrr and take 4% off your live trading fees.
Trade like normal
Use the order form you already know. Fills, PnL, TP/SL and trade history show up in Hyperliquid's own tables.
Fills behave the way live fills behave.
Papurrr prices every order against Hyperliquid's live data. Size, leverage and timing all cost you the same way they cost you on a real account.
Live order book fills
Market orders walk the L2 book level by level. Size up and you pay the slippage a real order pays.
TP/SL and triggers
Position TP/SL, TP/SL attached to entries, stop market, stop limit and take profit orders. Drag them on the chart to move them.
Leverage and liquidation
Cross and isolated margin up to each market's max. Liquidation uses Hyperliquid's maintenance margin, so a 40x long dies where a real 40x long dies.
Hourly funding
Funding hits open positions every hour at the live rate. Hold a crowded long through a hot funding window and you pay.
Real fee math
0.045% taker and 0.015% maker by default, matching Hyperliquid's base tier. Set your own tier in settings.
Themes
Recolor the whole Hyperliquid app, chart included. Use the Cream theme or pick your own colors. Works with real trading too.
Hard safety lock
While paper mode runs, a browser rule blocks every request to Hyperliquid's order endpoint. If a hook misses, the order fails. Nothing real goes out.
Everything you see stays native.
| What you see | Live account | Papurrr |
|---|---|---|
| Order form, chart, order book | Hyperliquid | Hyperliquid |
| Positions, open orders, trade history | Your wallet's account | Your paper account, in the same tables |
| Fill price | Live order book | Live order book |
| Funding | Hourly, live rate | Hourly, live rate |
| Liquidation price | Maintenance margin | Same formula |
| Deposit needed | Yes | No |
| Orders sent to the exchange | Yes | Never |
Your stats one click away.
The toolbar popup tracks the numbers you need to judge a strategy before you put money behind the strategy.
- Account value and all-time PnL updated every second.
- Win rate, realized PnL and fees across every closed trade.
- Deposit or reset with any starting balance you pick.
- One switch turns paper mode off when you want to trade for real.
Questions traders ask first.
Is Papurrr free?
Yes. No sign-up, no subscription, no fees on paper trades beyond the simulated trading fees.
Do I need a wallet?
Hyperliquid only shows the trading panel once a wallet is connected. Any wallet works, including a fresh one with zero balance. Papurrr never asks for funds.
What is the 4% fee discount?
Hyperliquid gives referred accounts 4% off trading fees, and pays Papurrr a share of those fees. The discount attaches only when an account is created, so use the link before you sign up. Papurrr stays free either way.
Is my real account safe?
Papurrr answers every order inside your browser. A browser rule blocks Hyperliquid's order endpoint while paper mode runs. To trade for real, flip the switch in the popup off.
Does the theme work while trading for real?
Yes. Themes run separately from paper trading. Flip paper trading off in the popup and your theme stays on while your orders go to your real account.
Which markets work?
Every main Hyperliquid perp. Spot, TWAP and HIP-3 markets are off in paper mode for now.
Where does my trade data live?
In your browser's local storage. Papurrr has no server and no account.
Is Papurrr part of Hyperliquid?
No. Papurrr is an independent tool and has no affiliation with Hyperliquid.
Practice the trade before you pay for the lesson.
Free on the Chrome Web Store. Works on app.hyperliquid.xyz.