Work · alternatives · 2026
24 alternatives to Fence
AI powered security helping keep users safe online.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Fence launched in 2022; newer entries below may have overtaken it.
- 1FS
Hi HN! Fence wraps any command in a sandbox that blocks network by default and restricts filesystem writes. Useful for running semi-trusted code (package installs, build scripts, unfamiliar repos) with controlled side effects, or even just blocking tools that phone home. > fence curl https://example.com # -> blocked > fence -t code -- npm install # -> template with registries allowed > fence -m -- npm install # -> monitor mode: see what gets blocked One use-case is to use it with AI coding agents to reduce the risk of running agents with fewer interactive permission prompts: >…
Jan 2026 · github.com · its alternatives →
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Runtime firewall for AI coding agents.
10d ago · contextfence.dev · its alternatives →
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Lyto▲178"One AI agent across your browser, tools, and messages "
Jun 2026 · trylyto.com · its alternatives →
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Block Facebook▲178Chrome Extension that protects your privacy by blocking FB
2018 · its alternatives →
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Stop scams, stay safe, and protect yourself online.
2025 · chromewebstore.google.com · its alternatives →
- 15
CtrlAI▲104Transparent proxy that secures AI agents with guardrails
Mar 2026 · github.com · its alternatives →
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Hey HN. http://peerd.ai is an AI agent harness that lives entirely in your browser as a web extension. You don’t have to install a separate “AI browser”. You don’t have to bolt on or run some external process or manage a clunky mcp integration. It’s just a fully contained web extension, written in no build vanilla JS with minimal non-browser dependencies, using your own provider keys, and Apache 2. This isn’t just a fun hack. While it has largely been a solo side project, I genuinely believe the browser and the web could be the most natural platform for AI agents to operate safely,…
Jun 2026 · github.com · its alternatives →
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See the potential security risk for every site you visit
2022 · its alternatives →
- 20
Runwall▲9A Runtime security layer that lets AI agents execute safely
Jul 2026 · runwall.vercel.app · its alternatives →
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In-browser A.I. protection from online threats - all free
Nov 2025 · its alternatives →
- 23
AI-powered firewall that instantly blocks malicious Web3.
Jul 2026 · guardfast.vercel.app · its alternatives →
- 24
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →