wasmerio/wasmer

🚀 Fast, secure, lightweight containers based on WebAssembly

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Summary Information

Updated 43 minutes ago
Added to GitGenius on September 2nd, 2026
Created on October 11th, 2018
Open Issues & Pull Requests: 256 (+0)
GitHub issues: Enabled
Number of forks: 1,004
Total Stargazers: 21,019 (+0)
Total Subscribers: 194 (+0)

Repository Insights (GitGenius)

Median issue/PR response: 3.8 hours
Mean response time: 19.1 days
90th percentile: 12.8 days
Tracked items: 810

How this project is maintained

Around half of the issues opened in the past year never receive a reply. 69% of open issues come from outside the core team, a mix of external reports and the maintainers' own roadmap. Work labelled "🎉 enhancement" is answered fastest, typically in about 17 hours, while "priority-low" waits about 5 days. 69% of tracked open issues have had no activity in three months, so the open count overstates what is actively being worked. Only 7% of issues opened in the past year have been closed.

Charts & Analytics

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Issue Activity (beta)

Open issues: 206
New in 7 days: 3
Closed in 7 days: 3
Avg open age: 311 days
Stale 30+ days: 180
Stale 90+ days: 136

Recent activity

Opened in 7 days: 2
Closed in 7 days: 2
Comments in 7 days: 2
Events in 7 days: 3

Top labels

  • 🏚 stale (205)
  • bug (135)
  • 🎉 enhancement (131)
  • priority-medium (116)
  • priority-high (71)
  • ❓ question (64)
  • 📦 lib-vfs (55)
  • priority-low (45)

Detailed Description

Wasmer is a WebAssembly runtime that enables lightweight containers to run across desktop, cloud, edge, and browser environments.

Wasmer addresses the need for secure, portable code execution by providing a WebAssembly runtime that isolates workloads by default. No file, network, or environment access is granted unless explicitly enabled. The tool runs WebAssembly at near-native speeds and supports both WASI and WASIX standards out of the box, allowing developers to package and execute applications as lightweight containers without traditional operating system overhead.

Wasmer suits projects requiring portable, sandboxed execution across heterogeneous environments. It works well for edge computing, serverless functions, and scenarios where you need to run untrusted code safely. The tool is embeddable via SDKs, making it suitable for integration into larger applications rather than just standalone runtime use. Developers can install it through multiple package managers and try it online before committing to adoption.

The project maintains active engagement with its community through documented communication channels and provides comprehensive documentation. Development activity shows consistent attention to the codebase with regular updates and maintenance across the runtime and SDK components.