Plonky3

Open Source

A modular toolkit of STARK proving components (fields, hashes, PCS, AIR) that serves as the proving backbone for zkVMs like SP1.

About

Plonky3 is the successor to Plonky2, restructured as a modular toolkit of interchangeable proving components: small fields such as BabyBear and Mersenne31, hash functions, FRI-based polynomial commitment schemes, and AIR arithmetization. Rather than a single monolithic prover, it lets zkVM builders assemble a proving stack from vetted parts, and it is the backbone of Succinct's SP1 zkVM among others. Its position under multiple production zkVMs makes its soundness a systemic concern for the ecosystem.

Categories

Proving Systems

Chains

plonky3 zkvm

Related Tools

Quick Info

Pricing
free
Open Source
Yes
Last validated
Jul 2026