01 From hunch to evidence

Don't trust the idea. Test the system.

Turn the strategy in your head into clear rules, test it against decades of market data, then run signals with confidence. No code required.

Start building free →See how it works ↓

Free open beta · no credit card · nothing to install

See the idea become evidence
02 Build

Describe your edge.
See the logic.

Turn plain trading ideas into structured entry, exit and risk rules—without translating your thinking into Python.

  • 01Choose the stocks you want to screen
  • 02Define exactly when to enter and exit
  • 03Add position sizing and risk limits
Visual Strategy Builder
STRATEGYMomentum with trend protection
Draft saved
IFMarket filterSPY is above its 200-day average
AND
IFEntry rulePrice reaches a 90-day high
THEN
BUYPosition sizingRisk 1% of the account
3 rules · plain English
03 Test

Know what happened before risking money.

Replay your rules through more than 20 years of market history. See the return, the risk and every trade—not just one flattering number.

20+ yrs market dataFull trade historySPY comparison

Illustrative example report shown.

Backtest Report · 2003–2026
CAGR+27.4%
Sharpe1.92
Max drawdown−11.3%
Win rate63%
Strategy SPY benchmark1,842 trades analyzed
04 Improve with Atlas

Ask why.
Test the answer.

Atlas reads your actual reports, explains what drove the result and proposes an improvement. You review every change before it runs.

✓

You stay in control.
Atlas suggests. Nothing changes until you approve it.

Why was my drawdown so deep in 2022?
✦ Atlas
Most of it came from holding through the Q2 selloff. Adding a SPY trend filter would have reduced exposure during that period.
Projected impact
Max drawdown−18.7% → −11.3%
Sharpe ratio1.41 → 1.92
Awaiting your confirmation
Add entry filter — SPY trend
SPY.close > SMA(SPY, 200)
05 Deploy

From tested rules to clear daily actions.

When your system finds an opportunity, TradingBuddy tells you what changed, what action to consider and how much risk the position carries.

  • ✓Entry, shares and stop in one place
  • ✓Approve trades before tracking them
  • ✓Monitor positions, P&L and portfolio risk
Today’s Signals
MONDAY · MARKET OPEN3 actions need your attention
Portfolio risk: Low
AAPLApple Inc.
BUY
ENTRY$189.40
SHARES120
STOP$178.05
NVDANVIDIA
BUY
ENTRY$118.05
SHARES40
STOP$109.20
TSLATesla
EXIT
RESULT+6.2%
REASONStop hit
Signals generated from your tested strategyYou approve every action
06 Simple, transparent pricing

Free during beta.
Clear when we launch.

Use every current beta feature for $0. These planned post-beta tiers show where pricing is headed, with advance notice before anything changes.

Open beta: $0 todayNo credit card · no automatic charges

Starter

For validating your first systems
$15
/ monthBilled yearly ($180/year)
Start free during beta
  • Visual strategy builder
  • Core historical backtesting
  • One live trading account
  • Starter Atlas allowance
  • Community support
Recommended

Trader

For active systematic traders
$57
/ monthBilled yearly ($684/year)
Start free during beta
  • Everything in Starter
  • Expanded backtest capacity
  • Multiple live accounts
  • Higher Atlas allowance
  • Desktop app and standard support

Professional

For advanced multi-account workflows
$165
/ monthBilled yearly ($1,980/year)
Start free during beta
  • Everything in Trader
  • Highest backtest capacity
  • Advanced multi-account workflows
  • Expanded exports and research limits
  • Priority support

Planned post-beta pricing. Features and prices may change before launch. We will publish final terms in advance, and you will never be charged unless you actively choose a paid plan.

07 Choose your workspace

Start instantly.
Go private when ready.

Use the browser to explore the complete workflow. Move to desktop when you want maximum speed, local data and offline research.

Fastest startRecommended

Web app

Open TradingBuddy and build your first strategy in seconds.

  • Nothing to install
  • Complete guided workflow
  • Works in any modern browser
Try in browser →
Maximum control

Desktop app

Keep your edge on your machine and use every CPU core.

  • 100% local SQLite storage
  • Multi-core backtests
  • Continue research offline
See desktop downloads
08 Start now

Your next trading idea deserves a real test.

Build it visually, learn from the evidence and decide what happens next.

Try TradingBuddy free →

Free open beta · no credit card · no installation required

Want the local engine?

Download TradingBuddy for desktop

Private storage, multi-core testing and offline research.

macOSApple Silicon / IntelWindows64-bit installerLinuxAppImage

Current version: …

First launch may show a one-time security prompt during the open beta. View the 30-second guide →

Want the complete picture?Explore every capability+
Visual strategy builder

Screeners, entries, exits, pyramiding, rankings and universe filters.

Parameter optimization

Compare studies ranked by Sharpe, running across your CPU cores.

Live charts

Streaming charts with RSI, SMA, MACD and Bollinger Bands.

Risk management

Fixed, percentage or risk-based sizing with portfolio caps.

Strategy marketplace

Import community systems and inspect their complete results.

Tracking and blotter

Open positions, unrealized P&L, risk gauges and trade history.

Good to know

Questions, answered.

How much does it cost?

TradingBuddy is $0 during the open beta, with no credit card required. Planned post-beta tiers are shown above; final pricing will be announced in advance, and we will never charge you unless you actively select a paid plan.

Do I need to know how to code?

No. Screeners, entries, exits, stops, rankings and risk rules are built visually using plain-English expressions.

Where does my data live?

In the desktop app, strategies, reports and signals are stored in a local SQLite database on your machine.

Is this financial advice?

No. TradingBuddy is research and backtesting software. Past results never guarantee future outcomes.

Follow the beta

Get occasional launch and feature updates. You can use the app now without signing up.

Questions or feedback? Join our Discord →

Not financial advice. TradingBuddy is software for backtesting and research. Past results never guarantee future outcomes. You are responsible for your trades.