Compare
Backtrader vs Zipline Reloaded
Side by side from sourced facts: pricing, markets, custody, incidents and each bot’s rule-based report card. We don’t pick a winner; what fits depends on how you trade.
| Backtrader | Zipline Reloaded | |
|---|---|---|
| Report card | Clear record No serious incident, regulator action or shutdown found in the sources we checked. Not an endorsement. | Clear record No serious incident, regulator action or shutdown found in the sources we checked. Not an endorsement. |
| Category | Open-source & self-hosted | Open-source & self-hosted |
| What it is | Popular Python backtesting and trading library. Last code push Aug 2024. | Maintained fork of Quantopian's Zipline, a Pythonic algorithmic trading and backtesting library. |
| Pricing | Free (open source). Source: github.com/mementum/backtrader | Free (open source). Source: github.com/stefan-jansen/zipline-reloaded |
| Markets / exchanges | Not verified yet | Not verified yet |
| Your money | Self-hosted: you run the software and your keys stay on your machine. | Self-hosted: you run the software and your keys stay on your machine. |
| Code / license | GPL-3.0 | Apache-2.0 |
| Facts on record | None found in public sources. | None found in public sources. |
| Official site | backtrader.com | zipline.ml4trading.io |
Facts checked Oct 15, 2026. Report cards follow published rules; payouts never change them. Not investment advice.