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mkcert - 零配置本地开发信任证书工具
mkcert is a simple, zero-config tool for creating locally trusted development certificates with any desired hostnames, solving the common problem of browser warnings and untrusted connections during local development.
Go
Added on 2025年7月3日54,126
Stars2,835
ForksGo
LanguageProject Introduction
Summary
mkcert is an open-source command-line tool designed to simplify the creation and management of locally trusted SSL/TLS certificates for development environments. It automatically creates and installs a local Certificate Authority in the system's trust store, allowing generated certificates to be trusted by browsers and applications without warnings.
Problem Solved
Developing applications locally with HTTPS often involves generating self-signed certificates that trigger browser security warnings. This makes testing realistic scenarios difficult and annoying. mkcert automates the process of setting up a local Certificate Authority and generating certificates that are automatically trusted.
Core Features
Locally Trusted Certificates
Generates certificates trusted by browsers and OS trust stores locally, eliminating security warnings.
Zero Configuration
No complex configuration files or manual steps needed; just run a few commands.
Support for Any Names
Allows creating certificates for `localhost`, 127.0.0.1, local network IPs, and custom hostnames.
No Admin Rights Needed (Post-Setup)
Does not require administrator privileges after the initial installation of the local CA.
Tech Stack
Go
PKI Standards
OS Integration (macOS Keychain, Windows Certmgr, Linux cert dirs)
使用场景
mkcert is invaluable in any development scenario where simulating a secure (HTTPS) connection locally is required. Common use cases include:
场景一：本地Web应用开发
Details
Developing web applications that require HTTPS, such as those using service workers, HSTS, or secure cookies, allowing them to run correctly on `localhost`.
User Value
Eliminates browser security warnings (like 'NET::ERR_CERT_INVALID') and enables testing of HTTPS-only browser features.
场景二：本地API与后端服务测试
Details
Testing APIs or backend services that are designed to be accessed over HTTPS, ensuring that client applications can connect securely during development.
User Value
Provides a trusted endpoint for local API testing, simplifying the development and debugging of secure communication.
场景三：模拟生产环境安全通信
Details
Setting up local development environments that mimic production setups requiring TLS encryption between services or for accessing internal tools.
User Value
Ensures the local development environment behaves more like production regarding secure connections, reducing surprises when deploying.
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