Obscura vs NemoClaw
Two of the top sandboxes, side by side: score, setup, license, activity and what each review found.
Obscura
Rust headless browser with CDP, native rendering and stealth mode
NemoClaw
NVIDIA reference stack running OpenClaw and Hermes inside OpenShell sandboxes
| What we compare | Obscura | NemoClaw |
|---|---|---|
| Score parts, out of 100 | ||
| Adoption | 72, popular | 62, popular |
| Freshness | 100, active | 100, active |
| Maintenance | 91, healthy | 76, fair |
| Easy to run | 50, easy | 50, easy |
| Agent-ready | 30, minimal | 85, ready |
| Facts from GitHub and the README | ||
| Stars | 28.8k | 22.7k |
| License | Apache-2.0 (permissive) | Apache-2.0 (permissive) |
| Last commit | Oct 2026 | Oct 2026 |
| Last release | Oct 2026 | None published |
| Language | Not stated | Not stated |
| Docker | Yes | Yes |
| GPU | Not needed | Not needed |
| arm64 or Apple Silicon | Mentioned | Not stated |
Obscura
Headless browser engine in Rust running V8 that speaks the Chrome DevTools Protocol, so Puppeteer and Playwright connect on port 9222 as if to Chrome. Ships its own layout and paint engine for screenshots, screencasts and PDF export, a stealth build with per-session fingerprint randomization, a parallel scrape command and an MCP server. Claims 30 MB memory and 85 ms page loads against 200+ MB and about 500 ms for Chrome.
Who it is for: Scrapers and agent builders replacing headless Chrome
Strengths
- Single binary around 70 MiB, no Chrome or Node.js; distroless Docker image about 57 MB
- Stealth build randomizes fingerprints per session and blocks 3,520 tracker domains
- SSRF protection blocks private IPs by default; CDP token on the Docker image
- Fetch.takeResponseBodyAsStream and IO.read stream large downloads in chunks
Weaknesses
- Independent rendering engine; long-tail CSS, media playback and fonts can differ from Chromium
- Stealth builds need CMake, Clang and libclang; first source build takes about 5 minutes
- README carries heavy proxy-vendor sponsorship and discount codes
- Linux binaries target glibc 2.35 or newer (Ubuntu 22.04)
- no GPU
- Docker
- port 9222
NemoClaw
CLI and installer that provision OpenShell sandboxes for OpenClaw (default), Hermes or LangChain Deep Agents Code, with guided onboarding, inference provider selection, baseline network policies with operator approval, managed integrations and persistent sandbox state. Express install targets DGX hosts and Windows WSL; a starter prompt lets Cursor, Claude Code or Codex drive setup. For personal agents with kernel-enforced isolation.
Who it is for: People running a personal agent with kernel-enforced isolation
Strengths
- Three supported agents: OpenClaw, Hermes, LangChain Deep Agents Code
- Network policy with operator approval flow and egress control from OpenShell
- Express preset install on DGX and WSL hosts
- Documented sandbox hardening: capability drops and process limits
Weaknesses
- Alpha project; maintainers review issues without guaranteed response times
- Depends on OpenShell as the runtime; details live in NVIDIA docs, not the README
- README is mostly links; no architecture or resource figures in the repo itself
- Supported platforms are limited to those on the prerequisites page
- no GPU
- Docker
- Needs NVIDIA OpenShell, Inference provider (local or routed)
- Models: providers configured through OpenShell routed inference