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DeFi Security Alliance · Tool directory

Web3 & smart contract security tools

Find tools for code review, fuzzing, formal verification, transaction analysis, wallet protection and security operations. Compare what each tool does, where it fits and what its results cannot establish.

Listed tools
156
Categories
21
Review date

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Find a tool for your security task

Browse 24 entries at a time, ordered by primary task and name. Search and filters cover all 156 tools. Confirm exact chain and version support at the source.

49-72 of 156 tools.Download CSV
  • EVMRepository

    Solmate

    Study compact Solidity building blocks for tokens, authorization and related contract patterns.

    Legacy / unmaintained

    Limitations & source status
    Before using
    Review the project's maintenance notice and individual component assumptions before adoption.
    Source status
    Legacy / unmaintained
  • SolanaRepository

    Anchor

    Build and test Solana programs with account constraints, interfaces and framework tooling.

    Documentation reviewed

    Limitations & source status
    Before using
    Review each account constraint and CPI trust assumption. The framework cannot infer missing authorization rules.
    Source status
    Documentation reviewed
  • SolanaRepository

    Bankrun

    Run Node.js Solana tests using a program-test-based local execution environment.

    Legacy / unmaintained

    Limitations & source status
    Before using
    Deprecated. The repository directs users to LiteSVM.
    Source status
    Legacy / unmaintained
  • SolanaRepository

    LiteSVM

    Execute Solana program tests in a lightweight local SVM environment.

    Documentation reviewed

    Limitations & source status
    Before using
    Local execution does not reproduce every validator, networking or live-state condition.
    Source status
    Documentation reviewed
  • SolanaRepository

    Mollusk

    Run focused Solana instruction tests with explicit account inputs and expected output checks.

    Documentation reviewed

    Limitations & source status
    Before using
    Compose additional scenarios for interactions across instructions and programs.
    Source status
    Documentation reviewed
  • SolanaRepository

    Solana Playground

    Develop, compile and test Solana programs through a browser-based workspace.

    Documentation reviewed

    Limitations & source status
    Before using
    Reproduce critical findings in a pinned environment with controlled keys and dependencies.
    Source status
    Documentation reviewed
  • SolanaRepository

    solana-security-txt

    Embed a machine-readable security contact and disclosure information in a Solana program.

    Documentation reviewed

    Limitations & source status
    Before using
    Contact metadata helps reporting but does not validate the deployed program's logic.
    Source status
    Documentation reviewed
  • SolanaRepository

    solana-verify

    Rebuild a Solana program deterministically and compare its binary with an on-chain program or buffer.

    Documentation reviewed

    Limitations & source status
    Before using
    A matching binary establishes source correspondence, not the absence of vulnerabilities.
    Source status
    Documentation reviewed
  • SolanaRepository

    solfuzz-agave

    Use an Agave execution target in Solana runtime differential fuzzing research.

    Documentation reviewed

    Limitations & source status
    Before using
    This is runtime test infrastructure, not a turnkey detector for application-level program bugs.
    Source status
    Documentation reviewed
  • SolanaRepository

    Trident

    Write Rust-based fuzzing campaigns that exercise Solana program instructions and account interactions.

    Documentation reviewed

    Limitations & source status
    Before using
    Meaningful account-state generation and invariants are required to find authorization bugs.
    Source status
    Documentation reviewed
  • MoveDeveloper tool

    Aptos CLI

    Compile, test and interact with Aptos Move packages through the official command-line interface.

    Documentation reviewed

    Limitations & source status
    Before using
    Deployment and test success do not replace a review of capabilities and module invariants.
    Source status
    Documentation reviewed
  • MoveDeveloper tool

    Move Prover

    Specify and verify Move module properties using the prover code within the Aptos repository.

    Research / prototype notice

    Limitations & source status
    Before using
    The reviewed subtree retains an experimental-code notice. Aptos Move tooling does not automatically cover Sui execution semantics.
    Source status
    Research / prototype notice
  • MoveDeveloper tool

    Sui CLI

    Compile and test Move packages and inspect Sui objects and transactions with official command-line tools.

    Documentation reviewed

    Limitations & source status
    Before using
    Add adversarial object-ownership and capability scenarios beyond the standard unit tests.
    Source status
    Documentation reviewed
  • CairoRepository

    Caracal

    Run static detectors and inspection outputs for Starknet contracts represented in Cairo or Sierra tooling.

    Documentation reviewed

    Limitations & source status
    Before using
    Use the release compatible with the project's Cairo representation and compiler artifacts.
    Source status
    Documentation reviewed
  • CairoRepository

    Scarb

    Manage Cairo dependencies and builds to make Starknet review artifacts reproducible.

    Documentation reviewed

    Limitations & source status
    Before using
    Package resolution and successful compilation do not assess contract security.
    Source status
    Documentation reviewed
  • CairoRepository

    Sierra Analyzer

    Decompile Sierra files, inspect call graphs and run detectors or symbolic test generation.

    Legacy / unmaintained

    Limitations & source status
    Before using
    The README states that the project is no longer maintained.
    Source status
    Legacy / unmaintained
  • CairoRepository

    Starknet Foundry

    Test, fuzz and interact with Starknet contracts using the snforge and sncast tool suite.

    Documentation reviewed

    Limitations & source status
    Before using
    Match Cairo and network versions and test account-contract interactions explicitly.
    Source status
    Documentation reviewed
  • CairoRepository

    Thoth

    Inspect Cairo and Starknet artifacts with disassembly, graphs and symbolic-analysis research tools.

    Legacy / unmaintained

    Limitations & source status
    Before using
    The repository is archived and states it is no longer maintained.
    Source status
    Legacy / unmaintained
  • TONDeveloper tool

    Acton

    Use TON's Acton development toolchain for building and testing smart contract projects.

    Documentation reviewed

    Limitations & source status
    Before using
    Match the target language and network settings and add security-specific message-flow scenarios.
    Source status
    Documentation reviewed
  • TONRepository

    Misti

    Run static analysis for TON contracts through the Misti analyzer and its supported language tooling.

    Documentation reviewed

    Limitations & source status
    Before using
    Check language and compiler support. Asynchronous protocol behavior also needs execution tests.
    Source status
    Documentation reviewed
  • TONRepository

    Tact

    Compile and inspect Tact contracts when maintaining or auditing existing TON applications.

    Legacy / unmaintained

    Limitations & source status
    Before using
    The reviewed README marks Tact deprecated and directs new language users to Tolk.
    Source status
    Legacy / unmaintained
  • TONDeveloper tool

    Tolk

    Compile Tolk smart contracts for TON and inspect build output during code review.

    Documentation reviewed

    Limitations & source status
    Before using
    Language tooling does not prove that asynchronous message and authorization logic is correct.
    Source status
    Documentation reviewed
  • TONRepository

    TON Blueprint

    Build and test TON contracts using the Blueprint development workflow found in existing projects.

    Legacy / unmaintained

    Limitations & source status
    Before using
    The reviewed README marks Blueprint deprecated and points users to Acton.
    Source status
    Legacy / unmaintained
  • TONRepository

    TON Contract Executor

    Execute TON contract code locally for investigating contract behavior in a test environment.

    Legacy / unmaintained

    Limitations & source status
    Before using
    The repository is archived. Verify compatibility before reproducing historical tests.
    Source status
    Legacy / unmaintained

From question to evidence

Choose a security tool workflow

These combinations are editorial starting points. Select the tools that match your artifact and threat model, then record enough context for another reviewer to reproduce the result.

Review a Solidity protocol

Start with
Pinned commit, compiler settings, deployment addresses and written invariants.
Expected evidence
Triaged detector findings, reproducible tests and failing invariant sequences.
Review boundary
Add roles, oracle states, upgrade paths and cross-contract assumptions that generic detectors cannot infer.
Design a contract fuzzing campaign

Check a critical property

Start with
A precise statement about balances, permissions or state transitions, plus environmental assumptions.
Expected evidence
A counterexample, a completed proof within the model or an explicitly inconclusive result.
Review boundary
Record loop bounds, external-call summaries, solver limits and proof obligations that remain open.
Define the wider audit scope

Review a Solana program

Start with
Program source, IDL where available, account constraints and the deployed program identifier.
Expected evidence
Account-state tests, fuzzing failures and a separate reproducible-build comparison.
Review boundary
Exercise signer, ownership, PDA, CPI, account-reuse and upgrade-authority assumptions.
Scope a Solana security review

Inspect an unverified EVM contract

Start with
Chain, address, runtime bytecode, implementation address where applicable and relevant transactions.
Expected evidence
Candidate functions, storage clues, reconstructed logic and traces to investigate.
Review boundary
Resolve proxies and corroborate inferred behavior. A selector lookup or decompiler cannot authenticate original source.
Investigate privileged contract behavior

Check a token before interaction

Start with
Exact chain and contract address, intended swap route and current allowance state.
Expected evidence
Dated risk signals covering permissions, trading behavior, liquidity, holders and approvals.
Review boundary
Use chain-appropriate tools. A clean scan cannot predict future owner actions or make a token an investment recommendation.
Understand honeypot-check limitations

Investigate and monitor a deployment

Start with
Contract inventory, transaction hashes, protocol invariants, alert recipients and response permissions.
Expected evidence
Reproducible traces, tested alert conditions and evidence attached to an owned incident workflow.
Review boundary
Distinguish detection from response. Test notification delivery and approval boundaries before enabling automation.
Plan on-chain monitoring

Review a zero-knowledge circuit

Start with
Circuit source, constraint artifacts, witness assumptions, public inputs and verifier integration.
Expected evidence
Constraint warnings, uniqueness results, witness tests and proof-verification artifacts.
Review boundary
Confirm the circuit encodes the intended statement, then review application binding and replay protection separately.
Review replay and domain boundaries

Check the code-to-deployment boundary

Start with
Dependency lockfiles, build configuration, artifacts, signing policy and the target deployment.
Expected evidence
Dependency findings, secret-scan results, an artifact inventory and signature-verification evidence.
Review boundary
Connect artifact identity to deployed bytecode and review the dapp frontend and administrative signing path.
Prepare an incident-response plan

Compare by the question answered

Common tool comparisons

How six common comparisons change the review workflow
ComparisonWhat differsSelection criterion
Slither vs Mythril

Slither analyzes source and compiler structures with detectors and inspection outputs.

Mythril explores EVM bytecode symbolically to seek vulnerability candidates.

Use source analysis for broad triage. Use symbolic exploration for additional execution evidence. Compare reproducible findings, not raw warning counts.
Foundry vs Echidna vs Medusa

Foundry combines development tests, invariant campaigns and fork-based workflows.

Echidna and Medusa focus on property-driven fuzzing campaigns and transaction sequences.

Run the same meaningful property and reachable-state setup before comparing campaign results. Preserve seeds, corpus, duration and tool versions.
Halmos vs Certora vs Kontrol

Halmos and Kontrol bring symbolic reasoning to Solidity-test-oriented workflows.

Certora uses CVL specifications and a verification service.

Choose based on the property, specification language, environment modeling and whether the proof completes within your resource budget.
Source verification vs security verification

Sourcify and solana-verify compare a build with a deployed artifact.

Formal tools reason about specified properties. Tests exercise selected behaviors.

Record these as separate evidence fields. A matching source build says nothing by itself about access control or economic safety.
Token scanner vs approval checker

Token scanners report selected contract, trading, holder and liquidity signals.

Approval checkers inspect permissions already granted by a wallet.

Use both for their respective questions. Revoking an allowance does not change a token contract or recover stolen assets.
Transaction simulator vs live monitor

A simulator evaluates a proposed transaction against a chosen state.

A monitor evaluates observed activity or state against configured detection rules.

Preserve the simulation inputs, then define the conditions that should trigger alerts after deployment. Neither replaces an incident owner.

Evidence & review scope

How this directory was assembled

DeFiSec reviewed 172 candidate tools and retained 156 entries across 21 categories. The September 5, 2026 source review excluded 16 candidates because of duplicate destinations or insufficient current product evidence. It retained 11 entries with legacy or maintenance notices, 5 with research or prototype notices and five supported only by provider-page evidence.

  1. Identify a concrete task. Include scanners, analyzers, testing frameworks, verification tools, investigation interfaces and supporting security infrastructure. A compiler or reporting tool is labeled by its actual role.
  2. Check a primary destination. Inspect official documentation, a project repository or the provider page; record the check date, response, redirects and content hash where available.
  3. Separate purpose from assurance. Describe the documented function and its review boundary. Documentation review does not establish runtime availability, active maintenance, license rights, price or detection quality.
  4. Preserve negative evidence. Record excluded candidates and visible maintenance notices. Count a suite once unless a separately named component has a distinct workflow.

Tools were not installed or benchmarked. Paid plans and transaction execution were not tested. Entries are not ranked by quality; inclusion is not an audit endorsement. Audit Builder is a DeFi Security Alliance product and is identified in its description.

For the wider review process, consult Ethereum's contract-testing guide, Trail of Bits' secure-contract guidanceand the OWASP Smart Contract Security Verification Standard. Product-specific evidence is linked from every card.

Practical questions

Web3 security tools FAQ

Which Web3 security tool should I start with?

Start with the artifact and question you have: source code for static analysis, a testable invariant for fuzzing, bytecode for reverse engineering or a deployed address for monitoring. Use the workflow table to assemble a small set of complementary tools, then check the source-linked requirements for your chain and build.

Are the listed tools free or open source?

The directory includes repositories, developer tools and hosted services. A public repository does not by itself establish license permissions and an accessible product page does not establish a free plan. Pricing and license terms were not audited in this review. Confirm both at the linked source.

Can a scanner or AI tool replace a smart contract audit?

A scanner can surface specific patterns or candidate findings. It cannot establish that the system meets every business rule, trust assumption or economic invariant. Require reproducible evidence for findings and review missing scenarios, integrations, privileges and deployment controls.

Which tools work for Solana, Move, Cairo, TON and CosmWasm?

Use the ecosystem filter and the dedicated categories. Solana account execution, Sui objects, Aptos resources, Starknet account contracts, TON messages and CosmWasm host behavior require different harnesses. A language label is not a promise of support for every chain or compiler version.

Does a honeypot check prove a token is safe?

It provides evidence about selected checks at a particular time. Trading routes, fees, permissions, liquidity and contract implementation can change. Record the exact chain and address and inspect individual signals instead of treating a score as a guarantee.

Why are archived and prototype tools included?

They help readers reproduce historical reports, understand older workflows and identify replacements. Legacy and research notices are visible in each affected card and can be selected with the status filter. Inclusion is not a recommendation to deploy a deprecated or experimental implementation.

What did DeFiSec actually verify?

The review checked primary repository, documentation and provider URLs, recorded response status and redirects and inspected the stated purpose and relevant maintenance notices. Five entries have only provider-page evidence and are labeled accordingly. Tools were not installed or benchmarked, paid access was not tested and detection quality was not measured.

How can I reproduce or reuse the directory review?

Download the catalog as CSV or JSON and the dated source-review CSV. Each listed tool has a source URL and check date. The source review also records exclusions, response status and a content hash where a response was obtained. These files preserve the review snapshot. They do not promise that a destination remains unchanged.