Google Open Source
LaunchKit - Open Source
Disney Open Source
LibHunt
OpenAlternative
Open Source Alternative To
Open Loyalty for Startups
200+ open source alternatives to popular B2B tools

Polymarket
Kalshi
Prediction Market Radar
iPredicta
Telonex
Bloomberg Professional
Smarkets
Education & Reference

Which is more popular?
Website, pricing, platforms and company facts side by side.
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OSA
Open Source Alternatives
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| Website | btw.so | predictit.org |
| Listed in |
What each product offers, as listed by its team.

Possible disadvantages
Possible disadvantages
How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using Open Source Alternatives and PredictIt. For example, how are they different and which one is better?
When comparing Open Source Alternatives and PredictIt, you can also consider the following products.
All of Googles open source projects under a single umbrella
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Bet on current events. Get tomorrow's news, today.
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A popular suite of developer tools, now 100% open source.
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Kalshi is a regulated exchange & prediction market where you can trade on the outcome of real-world events. Buy and sell Event Contracts.
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Explore Disney's Open Source projects
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Search and compare published prediction market prices across Polymarket, Kalshi, Manifold, Limitless, Gemini, Pascal and SX Bet.
Compare Prediction Market Radar to Open Source Alternatives or PredictIt: