Cloaktail is a ground-up browser runtime built for speed, precision, and high-density web automation. No Chromium overhead. Just raw power built in Zig.
No telemetry, no auto-updates, no background sync. Only what is needed for web execution.
Powered by Zig's explicit memory management, preventing the leakages common in Chromium.
Instant boot times via pre-warmed JS heaps and snapshotting for repetitive tasks.
Cloaktail outperforms traditional headless engines by eliminating the legacy GUI, telemetry, and IPC overhead. A lean runtime for a modern agentic web.
By stripping away Chromium's 200MB+ of legacy assets, we've achieved a binary size of just 42.8 MB.
Leveraging V8 pre-warmed JS snapshots to achieve sub-50ms cold starts for intensive scraping workloads.
DATA CAPTURED ON X86_64 LINUX (DEBIAN 12) | RELEASE_SMALL BUILD v0.1.0-AL
Cloaktail is designed to be the foundation for LLM-driven automation frameworks. Compatible with the tools you already use.