used by voters in 330+ cities
across 25 countries
Highlights
Used SIV to elect its leaders, giving voters options to vote online or in person.
SIV is meant to complement, not replace other voting methods.
Vote from any device, in seconds. No installs needed.
Strong privacy, verifiability, and coercion-resistance. Publicly auditable code.
Supports smarter voting methods, fundamentally transforming our options.
Compare
Explore where each method
shines and struggles.
Click a number for a detailed explanation.
How sure are we that only legitimate voters are voting, and only once each?
How sure are we that the votes were tallied up correctly, without any votes lost or modified?
How confident can individual voters be that no one else will learn their ballot selections?
How protected are voters against attempts to threaten or purchase their vote selections?
How accessible is the voting process for all members of the electorate, especially those with disabilities?
How quickly can individual voters participate?
How quickly can results be announced?
How affordable are the total costs to administer a secure election?
| SIV | In Person | ||
|---|---|---|---|
Accurate Results | |||
Auditable Voter Authentication How sure are we that only legitimate voters are voting, and only once each? | |||
Verifiable results How sure are we that the votes were tallied up correctly, without any votes lost or modified? | |||
Honest Vote Selections | |||
Vote privacy How confident can individual voters be that no one else will learn their ballot selections? | |||
Coercion resistance How protected are voters against attempts to threaten or purchase their vote selections? | |||
Voter Experience | |||
Accessibility How accessible is the voting process for all members of the electorate, especially those with disabilities? | |||
Speed of voting How quickly can individual voters participate? | |||
Speed of tallying How quickly can results be announced? | |||
Costs | |||
Affordability to administer How affordable are the total costs to administer a secure election? | |||
Resources
From high-level illustrations to formal specifications — everything you need to understand the SIV protocol.
View resourcesSIV works alongside existing voting methods. Start with a pilot, or run a full election — at any scale.
Start a Vote