Wasmtime: Efficient WebAssembly Runtime

Wasmtime is a powerful standalone runtime designed specifically for WebAssembly (Wasm) and the WebAssembly System Interface (WASI). It operates independently from the web, allowing users to execute WebAssembly code directly on their Windows platform. This utility serves both as a command-line tool and a library for integration into larger applications, making it versatile for developers looking to leverage WebAssembly's capabilities.

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The runtime is optimized for performance, utilizing techniques such as ahead-of-time (AOT) compilation and Just-In-Time (JIT) compilation through its Cranelift backend. Wasmtime emphasizes security by providing a sandboxed environment for running untrusted code, ensuring safe execution. Its free license and robust feature set make it an essential tool for developers working with WebAssembly.

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Laws concerning the use of this software vary from country to country. We do not encourage or condone the use of this program if it is in violation of these laws.
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Is Wasmtime safe?

99/100

Score result: Clean

This file passed a comprehensive security scan using VirusTotal technology. It is safe to download.

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Scan Info

Last scan
Wednesday, January 7, 2026
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File Integrity

File
39.0.1.zip
SHA256
bccf64b4227d178c0d13f2856be68876eae3f2f657f3a85d46f076a5e1976198
SHA1
bd7eac81dc07d6225f03503d2c99847f2815bd98

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Wasmtime has been thoroughly scanned by our advanced security systems and verified by industry-leading partners. This file comes from the official developer and has passed all our security checks, showing no signs of viruses, malware, or spyware. For more information, visit our Security and Trust Center