Software Alternatives, Accelerators & Startups

ProseMirror VS Emisar.dev

Compare ProseMirror VS Emisar.dev and see what are their differences

Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

ProseMirror logo ProseMirror

A toolkit for building rich-text editors on 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.
  • ProseMirror Landing page
    Landing page //
    2022-01-04
  • 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

ProseMirror features and specs

  • Highly Customizable
    ProseMirror offers a highly flexible and customizable framework, allowing developers to tailor the editor to fit specific requirements, from schema design to collaborative editing features.
  • Rich Text Capabilities
    It supports complex rich text editing capabilities like tables, lists, and image embedding, making it suitable for sophisticated content editing tasks.
  • Collaborative Editing
    ProseMirror has robust support for collaborative editing out-of-the-box, enabling multiple users to edit documents simultaneously with minimal conflict.
  • Active Community
    An active community and extensive documentation ensure that developers can find support and resources to resolve issues and leverage shared knowledge.
  • Performance
    Designed for high performance, ProseMirror efficiently handles large documents without significant slowdowns, optimizing rendering and operational transformations.

Possible disadvantages of ProseMirror

  • Steep Learning Curve
    ProseMirror's powerful features come with complexity, leading to a steep learning curve for new developers unfamiliar with its API and architecture.
  • Limited Plugins
    While customizable, the ecosystem of ready-made plugins is not as extensive as some other editors, which could require more custom development effort.
  • Lack of Built-in Features
    Certain high-level features, such as specific UI components or integrations, are not provided out of the box, requiring additional implementation.
  • Complex Configuration
    Setting up and configuring ProseMirror can be complex, especially for newcomers, due to the numerous options and concepts to understand and implement.

Emisar.dev features and specs

No features have been listed yet.

Category Popularity

0-100% (relative to ProseMirror and Emisar.dev)
Rich Text Editor
100 100%
0% 0
AI Tools
0 0%
100% 100
Text Editors
100 100%
0% 0
Infrastructure Monitoring

Questions & Answers

As answered by people managing ProseMirror 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.

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare ProseMirror and Emisar.dev

ProseMirror Reviews

14 Best Open Source WYSIWYG HTML Editors
ProseMirror is an exciting choice for free for users who want collaborative editing capabilities. Most of the WYSIWYG editors offer the collaboration feature for a premium. But here, you can work with others on the same document in real-time (for free).
Source: itsfoss.com

Emisar.dev Reviews

We have no reviews of Emisar.dev yet.
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Social recommendations and mentions

Based on our record, ProseMirror seems to be more popular. It has been mentiond 39 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

ProseMirror mentions (39)

  • 10 Best WYSIWYG Editors for Web Developers in 2026
    TipTap is a headless WYSIWYG editor built on top of ProseMirror. It gives developers full control over the UI while handling complex editing logic under the hood. This makes it a strong fit for highly customized interfaces. - Source: dev.to / 6 months ago
  • Top 5 Page Builders for React
    While Storyblok and Builder.io offer full-page editing experiences with structured CMS capabilities, Tiptap takes a different approach. Itโ€™s not a traditional page builder but rather an embeddable headless editor built on ProseMirror. This means that instead of giving you a predefined UI to work with, it provides the underlying logic, leaving you in full control of the interface, interaction and level of... - Source: dev.to / over 1 year ago
  • Ask HN: How to integrate a Blog system into my NextJS app
    > One thing I learned is that you should lean towards letting non-technical people choose their own tools like why we largely let developers choose their own tools. IMHO: I think a more sustainable variant of this (for your own sanity) might be to ask them which tool(s) they like and then take some time to understand WHY. But then instead of just letting them use those directly, you would either vet them first... - Source: Hacker News / over 1 year ago
  • Open Source Contribution: Round 2
    However, after doing some extensive research, I realized that almost none of them were compatible with Svelte, and those that were did not offer what I was looking for. That is, until I found tiptap, which is a headless wrapper around another WYSIWYG editor called ProseMirror. However, ProseMirror is very low level, and tiptap is super Svelte friendly! - Source: dev.to / over 1 year ago
  • Word-like HTML inline edit with design mode
    I love how Trix [0] and (I think) ProseMirror [1] work in that regard: it does use contenteditable, but every edit you make is applied to an internal model instead, then the editor state is updated back from the model. [0]: https://trix-editor.org/ [1]: https://prosemirror.net/. - Source: Hacker News / almost 2 years ago
View more

Emisar.dev mentions (0)

We have not tracked any mentions of Emisar.dev yet. Tracking of Emisar.dev recommendations started around Jul 2026.

What are some alternatives?

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

Quill - Powerful, API-driven rich text editor

Trix - A rich text editor for everyday writing.

Draft.js - Rich Text Editor Framework for React

CodeMirror - CodeMirror is a versatile text editor implemented in JavaScript for the browser.

TinyMCE - TinyMCE is a content editor that functions as a plug-in for Wordpress websites.

CKEditor - Real-time collaborative future-ready rich text editor