SM

smimesign

Smimesign is an S/MIME signing utility compatible with Git, allowing developers to sign Git commits and tags using X.509 certificates stored in macOS Keychain or Windows Certificate Store. It is pre-1.0 and APIs may change without warning.
Latest: 1.6.4 GitHub
Last checked: Jun 9, 2026 12:10am
Rank: 2777/15140
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Overview

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License: MITInstaller: zip, nuget packageWinget: Available

Version & Lifecycle

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Current: 1.6.4 Avg cadence: Every 841 days

Top Contributors

Top sitewide contributors:

  1. Anbarasan
  2. nico_k
  3. Bob
  4. Vigneshwaran

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Release Notes & Updates

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Also known as

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smimesigngithub smimesign

Packaging Notes

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Available as Chocolatey package and dotnet global tool (alternative)

Notes

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Developed by GitHub to support S/MIME commit signing; works with Git 2.19+; alternative implementation named gitsmimesign exists.