Wasmtime is free.
Verified Sep 2026 from the official pricing page.
Is Wasmtime worth the price?
Wasmtime's pricing is exceptionally generous as it is entirely free.
This makes it an incredibly accessible and fair option for anyone looking to utilize a fast and secure WebAssembly runtime without any financial commitment. It's best for developers and organizations of all sizes who need a robust WebAssembly solution without budget constraints.
Pricing Plans
Wasmtime
Free
- Fast runtime for WebAssembly
- Secure (Rust's runtime safety, RFC process, 24/7 fuzzing, security policy)
- Configurable (CPU and memory consumption)
- WASI support
- Standards Compliant (WebAssembly test suite, official C API, future proposals)
- Language Support (Rust, C, C++, Python, .NET, Go, Ruby)
How Wasmtime compares
4 of 6 direct competitors offer a free plan.
| Tool | Starting price | Free plan |
|---|---|---|
| Wasmtime | Free | Yes |
| WinterJS | Free | Yes |
| Supabase Edge Functions | $25/month | Yes |
| Layer0 | No public price | No |
| Cloudflare Workers | $0/month | No |
| Netlify | $9/month | Yes |
| Vercel Edge Functions | $20/month | Yes |
Wasmtime Pricing FAQ
How much does Wasmtime cost?
Wasmtime is free to use. No subscription or one-time fee is required for the core product.
Does Wasmtime have a free plan?
Yes. Wasmtime offers a free plan called "Wasmtime". It includes: Fast runtime for WebAssembly, Secure (Rust's runtime safety, RFC process, 24/7 fuzzing, security policy), Configurable (CPU and memory consumption).
What are alternatives to Wasmtime?
Alternatives to Wasmtime include WinterJS, Supabase Edge Functions, Layer0, Cloudflare Workers. WinterJS is fully free. Supabase Edge Functions starts at $25/month; Cloudflare Workers starts at $0/month; Netlify starts at $9/month.
Wasmtime alternatives
Direct competitors. Starting prices match the table above.
Sources
- Official Wasmtime pricing — wasmtime.dev (verified Sep 2026)
- Cite this data: Toolradar, Wasmtime pricing verified Sep 2026, toolradar.com/tools/wasmtime/pricing
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