Software Alternatives, Accelerators & Startups

Portmap.io VS CaptureKit.dev

Compare Portmap.io VS CaptureKit.dev and see what are their differences

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Portmap.io logo Portmap.io

Expose your local PC to Internet from behind firewall and without real IP address

CaptureKit.dev logo CaptureKit.dev

The Ultimate Web Scraping API for Developers
  • Portmap.io Landing page
    Landing page //
    2023-06-24
  • CaptureKit.dev CaptureKit Thumbnail
    CaptureKit Thumbnail //
    2025-02-26
  • CaptureKit.dev CaptureKit Demo
    CaptureKit Demo //
    2025-02-26

CaptureKit is an all-in-one web scraping API designed for developers and businesses to automate web content extraction and visualization effortlessly. With a single API request, CaptureKit allows users to capture high-resolution website screenshots, extract structured data, retrieve metadata, scrape links, and generate AI-powered summariesโ€”without the hassle of managing browser automation or web scraping infrastructure.

Key Features & Benefits

  • Capture high-quality full-page or viewport screenshots in multiple formats, ensuring pixel-perfect captures.

  • Upload Screenshots to S3: Automatically upload screenshots to Amazon S3 for easy storage and access.

  • Extract HTML, metadata, and structured website data for SEO audits, research, and automation.

  • Fetch internal and external links from any page for SEO analysis, content discovery, or backlink research.

  • Generate concise AI-powered summaries of web content, making it easy to extract key insights.

  • Block ads, pop-ups, and cookie banners, ensuring clean, distraction-free screenshots.

  • Customize rendering with viewport settings, dark mode, and interaction-based captures.

How It Works

  • Sign Up & Get an API Key โ€“ Instantly receive a free API key to start using CaptureKit.

  • Send an API Request โ€“ Pass a website URL and define your extraction needs (screenshot, HTML, links, or AI summary).

  • Receive Structured Data โ€“ CaptureKit processes your request and delivers clean, structured content in seconds.

  • CaptureKit simplifies web data automation, empowering developers and businesses to extract, analyze, and visualize web content efficiently.

Portmap.io

Website
portmap.io
Pricing URL
-
$ Details
-
Release Date
-

CaptureKit.dev

$ Details
freemium
Release Date
2025 February
Startup details
Country
France
Employees
1 - 9

Portmap.io features and specs

  • Ease of Use
    Portmap.io offers a simple interface that makes it easy for users to set up port forwarding without needing advanced networking knowledge.
  • Flexibility
    The service supports multiple tunneling protocols including OpenVPN and SSH, providing versatility depending on user needs.
  • Cost-effective
    Portmap.io offers both free and paid plans, allowing users to choose a service level that fits their budget while still providing essential features.
  • Compatibility
    The service is compatible with various operating systems, making it accessible to a wide range of users.
  • No Need for Static IP
    Users can access their internal services over the internet without requiring a static IP address.

Possible disadvantages of Portmap.io

  • Limited Bandwidth
    The free plan has bandwidth limitations that may not be suitable for high-traffic applications.
  • Security Concerns
    Using port forwarding services can introduce security risks if not properly configured or if the service has vulnerabilities.
  • Reliability
    As with many online services, there can be downtime or maintenance periods which may affect service availability.
  • Dependency on Third-party Service
    Relying on an external service for port forwarding can be a disadvantage if the service experiences issues or discontinues.
  • Configuration Limits
    Advanced users might find the configuration options somewhat limited compared to setting up port forwarding manually on their own networks.

CaptureKit.dev features and specs

No features have been listed yet.

Analysis of Portmap.io

Overall verdict

  • Portmap.io is generally considered a good tool for its ease of use, reliability, and features such as SSL support and a user-friendly interface. However, users should be aware of potential security risks when exposing local services to the public internet.

Why this product is good

  • Portmap.io is a popular choice for users looking to expose local servers to the internet without dealing with complex network configurations like port forwarding. It provides a straightforward solution for developers wanting to test, share, or access services remotely.

Recommended for

    Developers, system administrators, and hobbyists who need to access local services remotely or those testing webhooks and other remote internet applications.

Analysis of CaptureKit.dev

Overall verdict

  • CaptureKit.dev is a solid, developer-focused screenshot and web data capture API that offers a clean, reliable way to programmatically capture web content, making it a good choice for those needing automated screenshot solutions.

Why this product is good

  • Provides a simple, developer-friendly API for capturing website screenshots programmatically
  • Supports full-page and customizable capture options for flexible use cases
  • Offers reliable rendering that handles modern JavaScript-heavy websites
  • Can integrate easily into existing applications and automated workflows
  • Typically includes useful features like device emulation, custom viewport sizes, and various output formats

Recommended for

  • Developers building applications that need automated website screenshots
  • SaaS products requiring thumbnail generation or link previews
  • Teams monitoring web pages or archiving web content
  • Marketing and SEO tools that need visual web captures
  • Startups and businesses looking to integrate screenshot functionality without maintaining their own rendering infrastructure

Portmap.io videos

Port Forward without Router using portmap.io

More videos:

  • Review - portmap.io portforwarding with Android FUD RAT live practical hindi
  • Review - NJRAT LimeRAT Portmap.io - free port forwarding solution NJRAT LimeRAT

CaptureKit.dev videos

No CaptureKit.dev videos yet. You could help us improve this page by suggesting one.

Add video

Category Popularity

0-100% (relative to Portmap.io and CaptureKit.dev)
Localhost Tools
100 100%
0% 0
Website Screenshots
0 0%
100% 100
Webhooks
100 100%
0% 0
APIs
0 0%
100% 100

User comments

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Reviews

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

Portmap.io Reviews

  1. WORST SERVICE i ever see

    Did not worked at all. No VPN connections, NO ssh connections... Did not work at all. No option to connect. Not working in my country and "No refund" :(

    I got fooled with such fake service. NOT RECOMMENDING. use ngrok instead. Better for 800% that this

    Competitors: Simple Port Forwarding
    Cons:    Design|Price|Pricing|Ssh|Not working|Fake

CaptureKit.dev Reviews

We have no reviews of CaptureKit.dev yet.
Be the first one to post

Social recommendations and mentions

Based on our record, Portmap.io should be more popular than CaptureKit.dev. It has been mentiond 34 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.

Portmap.io mentions (34)

  • How do hackers hide their ip in reverse shells?
    I once used portmap.io for reverse shell in ethical hacking classes. Source: about 3 years ago
  • OpenVPNnot working and i dont know what to do
    So I use portmap.io for OpenVPN like I saw in tutorials but I found out it is not working because my ip didn't change when I looked up what my ip was. Source: about 3 years ago
  • SSH into a personal computer in Jio Network using public IP
    I have a personal computer in the Jio Network at my home and I want to access it using ssh from another network. But in order to port forward my router I am stuck since Jio uses CGNAT if I am not mistaken and there is no use if I portforward. What other solutions do I have? I tried using portmap.io but I couldnt configure ssh in it (I dont want to use openVPN) so what other options do I have? Source: almost 4 years ago
  • port forwarding/tunneling
    I'm basically looking for a free version of https://portmap.io/ -- they will do this, but custom domains are $4/month. Source: almost 4 years ago
  • port triggering to replace port forwarding
    I would recommend trying again with port forwarding, or some other solution like this: https://portmap.io/ which is a kind of reverse tunnel made for situations like yours. That site has a free tier which allows a single forward. Source: about 4 years ago
View more

CaptureKit.dev mentions (4)

  • How to Give AI Agents Website Screenshots with MCP (2026)
    CaptureKit ships an official MCP server and pairs screenshots with a Page Content API (HTML/Markdown/AI summaries) and stealth proxies, from $7/mo for 1,000 credits. That content Side is handy when your agent needs both a screenshot and clean page text to reason over. Best for: Indie developers building agents that need clean web content for an LLM alongside captures. - Source: dev.to / about 2 months ago
  • How to Take Full Page Screenshots with Puppeteer
    Setting up Puppeteer for reliable full-page screenshots requires handling numerous edge cases. If you need a faster, more reliable solution without the complexity, CaptureKit API offers a simple alternative:. - Source: dev.to / over 1 year ago
  • CaptureKit Update: Sitemap Support, Zapier integration, and Storage Flexibility
    { "success": true, "data": { "metadata": { ... }, "links": { ... }, "html": "Hello, world!", "sitemap": { "source": "https://capturekit.dev/sitemap.xml", "totalLinks": 3, "links": [ "https://www.capturekit.dev/", "https://www.capturekit.dev/page-content", "https://www.capturekit.dev/ai" ] } } }. - Source: dev.to / over 1 year ago
  • Automate Website Screenshots with CaptureKit and Zapier
    Sign up for a CaptureKit account at capturekit.dev. - Source: dev.to / over 1 year ago

What are some alternatives?

When comparing Portmap.io and CaptureKit.dev, you can also consider the following products

ngrok - ngrok enables secure introspectable tunnels to localhost webhook development tool and debugging tool.

ScreenshotOne - Fast and reliable screenshot API built to handle millions of screenshots a month.

sish - An open source serveo/ngrok alternative. HTTP(S)/WS(S)/TCP Tunnels to localhost using only SSH.

ScreenshotAPI.net - Generate beautiful website screenshots using our fast website screenshot API.

localhost.run - Instantly share your localhost environment!

Urlbox - Screenshot full page websites in retina resolution with Urlbox.io screenshot as a service API. Urlbox is the best provider of automated website screenshots offering many unique options and features.