VS Code
CodePen
GitHub
Node.js
RegExr
JSFiddle
CodeSandbox
Free ebook for the JS Beginners

Vault by HashiCorp
Infisical
Airlock
Doppler
Pipelock
DhiWise
Tragentics
AgentLock is a security gateway for AI agents: agents request, you approve on your phone. Zero-knowledge key vault, full audit trail, free plan available.

Which is more popular?
Based on our record, Eloquent JavaScript seems to be more popular. It has been mentioned 218 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
EJS
Eloquent JavaScript
|
|
|
|---|---|---|
| Website | eloquentjavascript.net | agentlock.net |
| Pricing | ||
| Platforms | — | |
| Company | — | Startup from Switzerland · 1 - 9 employees |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of Eloquent JavaScript yet.
AgentLock is a security gateway between AI agents and the services they touch. An agent sends its intended action - an HTTP call, an MCP tool call, a browser session, an SSH command - through AgentLock, where a policy decides whether it runs, is blocked, or needs human approval. Approvals arrive...
What each product offers, as listed by its team.

Possible disadvantages
An editorial look at what each product does well and who it suits.

Overall verdict
Why this product is good
Recommended for
No analysis of AgentLock yet.
Walkthroughs and reviews on video.
Eloquent JavaScript A Modern Introduction to Programming 3rd Edition by Marijn Haverbeke review
More videos
No AgentLock videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.

As answered by people managing Eloquent JavaScript and AgentLock.
AgentLock's answer:
AgentLock sits between the agent and the outside world instead of trusting the agent to behave. Every HTTP call, MCP tool call, browser action or SSH command becomes a request that a policy decides on, and anything sensitive waits for a human approval that arrives on the phone. Credentials live in the vault and are injected only at execution time, so an agent can use a key without ever seeing it - and if nobody approves in time, the action simply does not happen.
AgentLock's answer:
A secrets manager stores keys, but once an agent holds one, nothing stops it from making the wrong call. AgentLock covers both halves: the encrypted vault plus a gateway with policies, human approval, automatic redaction, a full timeline and undo for supported actions. It is available as an MCP server and an SDK, so an existing agent can be routed through it without a rewrite, and the free plan already covers 100 actions a month with one agent.
AgentLock's answer:
Developers who run autonomous agents against real systems - deployments, payments, mail, customer data - and want an audit trail and a stop button instead of hoping the prompt holds. Small teams also use it to let an agent work with shared credentials without handing the keys to every team member or to the model itself.
AgentLock's answer:
TypeScript across the stack: a React dashboard on Vercel, Supabase with Postgres, Auth and Edge Functions for data, policies and the encrypted vault, a self-hosted runner for actions that need a private network, React Native for the iOS and Android approval app, and Stripe for billing.
Share your experience with using Eloquent JavaScript and AgentLock. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

If you haven’t read Eloquent JavaScript , go check it out. It’s one of my all-time favourite programming books — hands down. - Source: dev.to / about 1 year ago
Videos, blogs, text-based teachings, YouTube project-based learning, books, and the like are all examples of various methods and mediums of acquiring skills, especially in the software engineering industry. As I continue to navigate... - Source: dev.to / about 2 years ago
Seconded. I won't recommend it and no one I know has recommended it for a decade. It's hard for someone who doesn't know JS to know which parts has changed and is no longer the way to do things. https://github.com/getify/You-Dont-Know-JS... - Source: Hacker News / about 2 years ago
Tracking AgentLock since Sep 2026.
When comparing Eloquent JavaScript and AgentLock, you can also consider the following products.

Build and debug modern web and cloud applications, by Microsoft
Compare VS Code to Eloquent JavaScript or AgentLock:

Tool for managing secrets
Compare Vault by HashiCorp to Eloquent JavaScript or AgentLock:

A front end web development playground.
Compare CodePen to Eloquent JavaScript or AgentLock:

Infisical is an open source, end-to-end encrypted platform that lets you securely sync secrets and configs across your engineering team and infrastructure
Compare Infisical to Eloquent JavaScript or AgentLock:

Originally founded as a project to simplify sharing code, GitHub has grown into an application used by over a million people to store over two million code repositories, making GitHub the largest code host in the world.
Compare GitHub to Eloquent JavaScript or AgentLock:

Monitor, audit, and intercept every agent action.
Compare Airlock to Eloquent JavaScript or AgentLock: