Sandboxer vs Wasmer Edge

Wasmer Edge is a serverless app platform built on the Wasmer WebAssembly runtime and WASIX; apps scale to zero and start in microseconds. It runs WebAssembly workloads rather than a Linux VM, so apps must target WASM/WASIX or a supported runtime. Pick Wasmer Edge for cheap serverless web apps; pick Sandboxer when an agent needs a real machine.

Checked against Wasmer Edge's public docs on October 24, 2026. Sources are linked in the table and listed below.

At a glance

Sandboxer and Wasmer Edge compared
Capability	Sandboxer	Wasmer Edge
Isolation	microVM Cloud Hypervisor, its own kernel	WebAssembly (WASIX) sandbox Each workload is isolated in its own process table, memory, network and threads.
Full Linux with root	Ubuntu 24.04, sudo, systemd	Runs WebAssembly (WASIX) workloads rather than a Linux VM; Wasmer's architecture page contrasts itself with virtual machines.
Docker inside	Preinstalled
Nested virtualization (/dev/kvm)		WASM runtime, not a VM.
Pause and resume with memory	Running processes come back
Fork a sandbox	Copy-on-write disk copy that boots fresh
HTTPS URL per port	Private with a token, or public	partial Apps get HTTPS URLs and custom domains; Pro adds TCP/UDP app types. Per-port URLs for arbitrary processes are not described.
Longest session	No limit on paid plans Auto-stop is up to 30 days or off	no fixed limit stated Serverless, scales to zero; per-request limits not checked.
Billing	Per second, flat rate per size Stopped sandboxes are free	usage-based: active CPU hours, provisioned GB-hours, requests, bandwidth Pro $10/mo includes 6 active CPU h and 400 GB-h; then $0.10 per CPU-hour and $0.01 per GB-hour.
GPUs
Self-host or open source
Regions	US East (Virginia) and EU Central (Finland)	12 global regions Hobby and Pro; private locations on Enterprise.

= not documented publicly.

Where Wasmer Edge is strong

Cold starts under 1 ms are listed in Wasmer's own comparison table.
It supports JS, PHP, Python, Rust, Ruby, C and static sites.
Pricing is small: free Hobby tier and a $10 Pro plan with included usage.
It deploys to 12 global regions.

Where Sandboxer differs

Wasmer Edge runs sandboxed WASM apps; Sandboxer runs a full Ubuntu microVM with its own kernel.
Wasmer runs WebAssembly workloads rather than a root Linux VM; Sandboxer has root, systemd and Docker preinstalled.
Wasmer bills active CPU and requests; Sandboxer bills per second for a provisioned machine.
Wasmer is global across 12 regions; Sandboxer runs in us-east and eu-central.

Pick Wasmer Edge if

You want serverless web apps that scale to zero with very fast cold starts.
You need many edge regions and low cost for light traffic.
Your app already targets WASM or a supported language runtime.

Pick Sandboxer if

You need a full Ubuntu VM with root, systemd and Docker inside a microVM with its own kernel.
You want stop/resume that keeps running processes and memory, and forks from disk snapshots.
You want coding agents (Claude Code, Codex and others) preinstalled and driven through a prompt API.

Sources

Products change. If something here is out of date, email hello@sandboxer.com and we'll fix it. Wasmer Edge is a trademark of its owner. Sandboxer is an independent product and is not affiliated with Wasmer Edge.

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