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Synpress

Synpress is an open-source TypeScript end-to-end testing framework for Web3 dApps that extends Playwright and Cypress with MetaMask wallet interactions, cached browser wallet state and local Anvil support.

Independent OpenViST project profile, based on linked sources.

Synpress — OpenViST project profile in Developer Tools.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use Synpress when browser tests must cover wallet state and blockchain interactions in addition to ordinary dApp interface behaviour.

Who it is for

  • Developers building or maintaining Web3 dApps.
  • Teams writing Playwright or Cypress end-to-end tests.
  • Engineers testing MetaMask-based wallet journeys and Ethereum-oriented blockchain operations.

Documented uses

  • Automate wallet-connection and transaction-flow tests.
  • Create regression suites for MetaMask user journeys.
  • Reuse cached wallet browser state in repeated or parallel tests.
  • Run isolated local blockchain tests with Anvil.
  • Build Web3 testing workflows with Playwright or Cypress.
Before you choose

Requirements & limits

The repository is public, open source and licensed under MIT. Installation is documented with pnpm. No pricing or account requirement is provided in the cited material.

  • Choose it when MetaMask interaction coverage is part of the end-to-end scope.
  • Its Playwright and Cypress foundation allows existing capabilities from those frameworks to remain part of the testing workflow.
  • Cached browser wallet state can support repeated and parallel test runs.
  • Anvil support is relevant when tests need an isolated local blockchain environment.
  • The framework is TypeScript-based and is described for CLI, Docker and server environments.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

COMPARE OPTIONS

Compare options for Wallet connections

These projects document a common task and share a project role. This is a source-based comparison, not an execution benchmark or a guarantee of interchangeability.

ProjectDocumented purposePlatformAccess and requirements
SynpressAutomate wallet-connection and transaction-flow tests.CLI, Docker, ServerThe repository is public, open source and licensed under MIT. Installation is documented with pnpm. No pricing or account requirement is provided in the cited material.
Sample Project GradleConnect a Java web3j application to an Ethereum node.CLI
Eth Nextjs BoilerplateCreate a dApp frontend with wallet connection and an example transaction flow.CLI, Web
Evidence and transparency

Sources & review

Official repository ↗
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2 October 2026
Original website title
synpress/synpress · Official homepage title · retained in its source language
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