Software Alternatives, Accelerators & Startups

heatmap.js VS Emisar.dev

Compare heatmap.js VS Emisar.dev and see what are their differences

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heatmap.js logo heatmap.js

Dynamic Real-time Heatmaps for the Web

Emisar.dev logo Emisar.dev

One governed MCP server connects any AI agent to a finite action catalog, enforced on-host with pack trust, policy gates, human approvals, and a hash-chained audit trail.
  • heatmap.js Landing page
    Landing page //
    2019-02-20
  • Emisar.dev Approvals
    Approvals //
    2026-07-21
  • Emisar.dev Audit Log
    Audit Log //
    2026-07-21
  • Emisar.dev Policies
    Policies //
    2026-07-21
  • Emisar.dev Runner fleet
    Runner fleet //
    2026-07-21

Emisar is the last MCP server youโ€™ll need to install: a Zero-Trust gateway connecting Claude, Cursor, ChatGPT, and any AI agent to your infrastructure. One server handles production access, debugging, alerts, and internal operations, with new capabilities added as packs. Agents can inspect real production state, debug what they shipped, and help resolve incidents. Safe reads run automatically; policy allows, blocks, or routes risky actions for approval. No SSH keys, VPNs, remote shells, or standing shell access โ€” and every call is recorded.

Emisar.dev

Website
emisar.dev
$ Details
freemium $20.0 / Monthly (per runner)
Startup details
Country
United States
State
CA
Founder(s)
Andrew Dryga
Employees
1 - 9

heatmap.js features and specs

  • Ease of Use
    heatmap.js is designed to be simple and easy to use, allowing developers to quickly create heatmaps with minimal setup and configuration.
  • Customization
    The library offers a wide range of customization options, allowing users to adjust colors, opacity, radius, and gradient to fit the desired aesthetic and data representation needs.
  • Performance
    heatmap.js is optimized for performance and can handle large datasets efficiently by utilizing WebGL rendering when available.
  • Cross-Browser Compatibility
    The library is compatible with major web browsers, ensuring consistent functionality and appearance across different platforms.
  • Extensive Documentation
    Comprehensive documentation is available, providing detailed guidance and examples for various use cases and configurations, which helps developers get up to speed quickly.

Possible disadvantages of heatmap.js

  • Limited to 2D Heatmaps
    heatmap.js is focused solely on 2D heatmap creation, which may be limiting for developers looking to create 3D heatmaps or more complex data visualizations.
  • Dependency on JavaScript
    As a JavaScript library, developers need to be familiar with JavaScript to use heatmap.js effectively, which could be a barrier for those proficient in other programming languages.
  • Potential Performance Issues with Very Large Datasets
    While the library handles large datasets well, extremely large datasets or high-density points can still potentially impact performance and responsiveness.
  • Limited Features Compared to Full-Fledged Data Visualization Libraries
    Compared to more comprehensive visualization libraries like D3.js or Chart.js, heatmap.js is specialized and may lack some advanced capabilities and integrations offered by these full-featured libraries.
  • May Require Additional Libraries for Advanced Features
    Developers may need to integrate heatmap.js with additional libraries or tools to achieve more advanced visualization features or better integrate the heatmap into a larger application framework.

Emisar.dev features and specs

No features have been listed yet.

Category Popularity

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Web Analytics
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AI Tools
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100% 100
Heatmaps
100 100%
0% 0
Infrastructure Monitoring

Questions & Answers

As answered by people managing heatmap.js and Emisar.dev.

How would you describe the primary audience of your product?

Emisar.dev's answer:

emisar is for SRE, DevOps, platform engineering, infrastructure, and security teams that want AI agents to inspect and operate production systems. It is especially relevant to teams managing multiple Linux hosts, clusters, databases, cloud services, or regulated environments where unrestricted shell access and incomplete audit records are unacceptable.

Which are the primary technologies used for building your product?

Emisar.dev's answer:

The hosted control plane and operator interface use Elixir, Phoenix, LiveView, PostgreSQL, and Tailwind CSS. The host runner and MCP bridge are written in Go. Action packs use YAML and JSON Schema, while production infrastructure is managed with Terraform on Google Cloud. The system communicates through MCP, OAuth 2.1, TLS, and WebSockets.

Who are some of the biggest customers of your product?

Emisar.dev's answer:

  • Blitz.gg - game analytics for billions of matches and a pretty large infrastructure.

What's the story behind your product?

Emisar.dev's answer:

Founder Andrii Dryga spent a decade working as a CTO, full-stack engineer, SRE, and DevOps engineer. He experienced the cost of running the wrong command on the wrong cluster, while also seeing AI solve operational problems in seconds. emisar grew from the need to preserve both truths: AI agents are useful, and production access must remain bounded. Its answer is to give agents a reviewed catalog of operations instead of a blank terminal.

What makes your product unique?

Emisar.dev's answer:

emisar lets AI agents work on real infrastructure without giving them a shell. Agents choose from a finite catalog of typed, versioned actions. Policy decides what runs, what requires approval, and what is denied, while an outbound-only runner verifies the action again on the host. New capabilities arrive as packs behind the same MCP integration, and every request is recorded in both a searchable audit trail and a tamper-evident host journal. [

Why should a person choose your product over its competitors?

Emisar.dev's answer:

Choose emisar when you want an agent to keep investigating and handling routine operations without handing it SSH credentials or supervising every call. Compared with raw shell access, copy-paste workflows, or one-off MCP servers, emisar provides reviewed action contracts, host-level enforcement, risk-based policy, scoped access, approvals, pack integrity checks, and a durable audit trail. It is built specifically for governed infrastructure access rather than generic automation.

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What are some alternatives?

When comparing heatmap.js and Emisar.dev, you can also consider the following products

Hotjar - The #1 Leader in Heatmaps, Recordings, Surveys & More. Sign up for a 15-day free trial and start learning from real user behavior today!

RealEye - Online Research Platform with Webcam Eye-Tracking.

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Browsee - AI assisted tool to understand user experience visually.

Attention Insight - Maximize advertising campaign results and design performance with pre-launch analytics.

66Analytics - Self-hosted analytics, heatmaps & session recordings.