Nilhcem/FakeSMTP

Health v2 · maintenance only

Flags: no_releases archived no_license

Adoption not part of the score

1007 stars · 339 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

FakeSMTP is a free, cross-platform dummy SMTP server with a graphical interface, written in Java, that intercepts emails sent by applications during development and displays them instead of delivering them. It can run headless in the background and save emails to disk or memory for inspection.

Use cases

• test email sending in my app without sending real emails
• catch emails locally during development
• run a fake smtp server on localhost for integration tests
• inspect emails sent by a website in a gui
• headless smtp server for automated email testing

When to choose

• you need a free, open-source, cross-platform GUI tool to intercept and view outgoing emails during development
• you want a lightweight local SMTP server for manual or automated email testing
• you prefer a simple double-click jar with no external dependencies beyond a JVM

When to avoid

• you need to actually deliver emails to real recipients
• you need advanced features like IMAP/POP access or a web UI (consider smtp4dev or MailHog)
• you need a non-Java runtime or native application

Facets

application · maturity maintenance

email testing gui http-server developer-tools testing email desktop-applications cross-platform jvm smtp-server email-testing fake-server mail-catcher java-swing desktop

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markdown · JSON · MCP: product_card(name="Nilhcem/FakeSMTP")