Practice trading. Test strategies. Ask smarter questions.
A complete trading playground with live market data, backtesting, an AI coach that reads your trades, and an assistant that answers questions about any SEC filing with sources you can actually click.
Everything you need to learn trading.
Six tools that work together. All in one open-source app that runs on your laptop.
Trade with virtual money on real live markets. Practice risk-free, learn without losing anything.
Build a trading strategy, run it against years of historical data, and see how it would have performed.
An AI that reads your actual trades and gives feedback on patterns, weaknesses, and personalized tips.
Ask questions about any SEC filing. Every answer shows you exactly where it came from, so you can click and verify.
Follow other traders on the platform and mirror their trades. Learn from what real people actually do.
Compete on returns, unlock achievements, add friends, compare portfolios side-by-side.
The four features you'll actually use.
Ask any question about a company's filings.
Paste an SEC filing URL, wait a minute, and you can ask questions in plain English. Every answer comes with citations that link straight back to sec.gov. Click one and see the exact passage the answer came from.
- Ask in plain English, no query language required
- Every claim shows the source
- Refuses honestly when it doesn't know
- Works on 10-K, 10-Q, and 8-K filings
Trade with virtual money on real markets.
Get a virtual portfolio, place market or limit orders on live prices, and track your P/L over time. Set alerts, maintain a watchlist, and keep a full transaction history. Everything a real broker does, minus the risk.
- Live quotes from real market data
- Market + limit orders
- Portfolio, watchlist, and price alerts
- Multi-currency support
An AI that reads your trades and tells you the truth.
The AI Coach studies your actual trading history and flags patterns: revenge trades, overconfidence after wins, holding losers too long. Then it gives you specific, personalized tips based on what you're doing.
- Behavior score across multiple axes
- Detects patterns in your history
- Interactive chat about your positions
- Refuses when it doesn't have enough data
Test any strategy before you commit to it.
Build a trading strategy from indicators and rules, run it against years of historical market data, and see how it would have played out. Get an equity curve, win rate, drawdown, and every trade the strategy would have made.
- Build strategies with common indicators
- Test over any historical window
- Full performance metrics + trade log
- Save and iterate on strategies
Free, private, and yours forever.
Questions, answered honestly.
No. All trades are simulated with virtual money on real market prices. You can't lose or make actual money. It's designed for learning, testing strategies, and getting comfortable with how markets work.
Yes. Open Papertrade is open source under AGPL-3.0. No subscription, no paywall, no ads. The only thing you might pay for is an optional AI provider if you want to use the smart-answer features, and even that's free if you use local models.
The only account you need is on your own machine. Everything runs locally, so you're not signing up on our servers because there are no servers. Optionally, you can add an AI API key if you want the coach and filings features to work.
It reads your trade history and gives you feedback on patterns it sees, like trading too much after a win, hanging onto losing positions, or being over-concentrated in one sector. It also has an interactive chat where you can ask it about your portfolio directly.
Paste any SEC filing URL, wait about a minute for it to be processed, and then you can ask questions about it in plain English. Every answer has clickable citations that link back to the exact passage in the original filing on sec.gov.
It tells you. Instead of making something up, it responds with "I don't have enough information to answer that." This is intentional. We'd rather have an honest "I don't know" than a confident but wrong answer.
Yes. The backtesting engine lets you build strategies from common technical indicators and rules, test them against historical data, and iterate. Save your strategies, share them with friends, or run them against different date ranges.
Live and historical market data comes from Finnhub (with Yahoo Finance as a fallback). SEC filings come straight from EDGAR. No paid data feeds required for anything.
Be first in line. Risk-free.
Join the waitlist and we'll email you the moment Open Papertrade launches. One notification, no spam.