Software Alternatives, Accelerators & Startups

CrossBrowserTesting VS Larm.dev

Compare CrossBrowserTesting VS Larm.dev and see what are their differences

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CrossBrowserTesting logo CrossBrowserTesting

Browser Testing made simple! Run automated, visual, and manual tests on 1500+ real browsers and mobile devices. Test more browsers, in less time.

Larm.dev logo Larm.dev

Know before your customers do. Uptime monitoring with full request traces, multi-location verification, and status pages.
  • CrossBrowserTesting Landing page
    Landing page //
    2023-10-23
  • Larm.dev Landing Page
    Landing Page //
    2026-03-21

Larm is uptime monitoring for engineering teams. We check your websites, APIs, and services from multiple probe locations across multiple continents and use multi-probe voting to confirm outages before alerting โ€” so a single network hiccup doesn't become your team's 3 AM problem.

85% of monitoring alerts are false positives. That's not a statistic about bad services. It's a statistic about bad monitoring. When your team stops trusting their alerts, they stop responding to them. We built Larm to fix that.

How it works: every probe that checks your service casts a vote. Pass or fail. We require a strict majority across independent locations to change state. A timeout in Virginia while Frankfurt, Singapore, and Sรฃo Paulo see your service as healthy? Not an alert. When Larm sounds the alarm, it's real.

What you get: - HTTP, TCP, DNS, and heartbeat monitoring - Full request waterfall traces (DNS, TCP, TLS, TTFB, transfer) - Confirmation windows to filter brief blips - 14 alert integrations (Slack, PagerDuty, Discord, Email, SMS, and more) - Status pages that update automatically and survive your outage (static HTML on CDN) - SSL certificate expiry monitoring

The platform runs on EU-owned infrastructure (Hetzner, Germany). Your monitoring data is stored and processed in the EU.

Self-funded. No investors. Flat pricing: free with 15 monitors, Pro at $19/mo for 100 monitors and 10 team seats.

CrossBrowserTesting features and specs

  • Wide Range of Browsers and Devices
    CrossBrowserTesting offers a large selection of browsers and devices, allowing developers to test their applications in various environments to ensure compatibility.
  • Live Testing
    Users can perform live interactive testing on real devices, enabling them to manually verify the behavior of their application and catch issues that automated tests might miss.
  • Automated Testing Integration
    The platform provides integration with popular testing frameworks and tools such as Selenium, Appium, and others, facilitating automated testing workflows.
  • Visual Testing
    CrossBrowserTesting offers visual testing capabilities, allowing users to compare screenshots from different browsers to identify design inconsistencies.
  • Comprehensive Reports
    Detailed test reports with screenshots and logs are generated, helping users to quickly identify and address issues found during testing.
  • Parallel Testing
    The service supports parallel testing, enabling users to run multiple tests simultaneously, significantly reducing the overall testing time.
  • Easy-to-Use Interface
    The user interface is intuitive and user-friendly, making it easy for both beginners and experienced testers to navigate and utilize the platform effectively.

Possible disadvantages of CrossBrowserTesting

  • Cost
    CrossBrowserTesting can be expensive, especially for small teams or individual developers who might find the subscription plans to be cost-prohibitive.
  • Performance
    Tests on real devices can sometimes be slow due to the availability and network constraints, which can affect the overall efficiency of the testing process.
  • Limited Mobile Devices
    While the platform includes a variety of devices, the selection might not cover all the latest models or less common devices, potentially limiting testing coverage.
  • Learning Curve for Advanced Features
    Some advanced features and integrations might require a learning curve, which could be challenging for users who are not familiar with automated testing or the specific tools supported.
  • Test Timeout Issues
    Occasional issues with test timeouts have been reported, which can disrupt the testing process and require reruns or additional troubleshooting.

Larm.dev features and specs

  • Modern Developer Tool
    Larm.dev appears to be a modern development tool or platform designed with current software engineering practices in mind, catering to developers who want up-to-date solutions.
  • Clean and Simple Interface
    The platform features a clean, minimalistic design that makes it easy for developers to navigate and get started quickly without being overwhelmed by unnecessary complexity.
  • Developer-Focused
    Larm.dev is built specifically with developers in mind, providing tools and features that align with common development workflows and needs.
  • Lightweight Solution
    The platform appears to be lightweight and focused, avoiding bloat that can slow down development processes and offering a streamlined experience.
  • Web-Based Accessibility
    Being a web-based platform, Larm.dev is accessible from any browser without requiring complex local installations, making it easy to get started from anywhere.

Analysis of CrossBrowserTesting

Overall verdict

  • CrossBrowserTesting is generally regarded as a good solution for cross-browser testing needs, particularly for teams that require real-time testing and robust automation capabilities. Its ease of use, extensive browser/device coverage, and integration options make it a strong choice for many development and QA teams.

Why this product is good

  • CrossBrowserTesting is considered a valuable tool because it provides a cloud-based platform for testing websites and mobile applications across different browsers, devices, and operating systems. It enables developers and QA teams to ensure that their applications function correctly on various platforms without needing to maintain a complex setup of physical devices. The platform offers real-time debugging, automated screenshot testing, and integration with various CI/CD tools, which streamlines the testing process.

Recommended for

    This service is highly recommended for software development teams, QA engineers, and web developers who need to ensure compatibility and functionality of their web applications across multiple browsers and devices. It is particularly useful for organizations with a focus on maintaining high-quality user experiences across various platforms.

Analysis of Larm.dev

Overall verdict

  • Larm.dev appears to be a niche or personal developer-related site/brand, but there is insufficient verifiable public information available to confirm its features, reliability, or reputation with confidence.

Why this product is good

  • Limited publicly available information makes it difficult to verify claims of quality or performance.
  • No widely recognized reviews, ratings, or user testimonials could be found to substantiate its reputation.
  • It may be a personal project, portfolio, or small-scale service rather than an established, widely-used product.
  • Without transparent documentation on pricing, support, or track record, potential users cannot easily assess risk versus benefit.

Recommended for

  • Users specifically seeking niche or personal developer tools who are willing to do their own due diligence.
  • Early adopters comfortable testing lesser-known or emerging services.
  • Those already familiar with the creator or team behind Larm.dev through other channels.
  • Not recommended for users requiring established, well-documented, and widely vetted solutions for critical or business use.

CrossBrowserTesting videos

Cross Browser Testing Tool Comparison โ€“ LambdaTest vs. CrossBrowserTesting

Larm.dev videos

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Category Popularity

0-100% (relative to CrossBrowserTesting and Larm.dev)
Website Testing
100 100%
0% 0
Incident Management
0 0%
100% 100
Browser Testing
100 100%
0% 0
Status Pages
0 0%
100% 100

User comments

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Social recommendations and mentions

Based on our record, CrossBrowserTesting should be more popular than Larm.dev. It has been mentiond 6 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.

CrossBrowserTesting mentions (6)

  • How can I test my site on safari if I don't have a Mac ?
    Yeah I moved on pretty quick from browserstack, but it seems to be the most popular. I've tried crossbrowsertesting.com but at the moment I really like app.lambdatest.com. Source: almost 4 years ago
  • great list of "cool" sites from hnews
    Https://geizhals.de/ - this is a german site but the UI is nice and you can find a lot of stuff. Https://www.gsmarena.com/search.php3? - a phone search site. When I was at https://crossbrowsertesting.com we used this site a lot Https://www.howacarworks.com/ - how a car works Https://www.mcmaster.com/ - the UI here is so nice. Those illustrations Https://ciechanow.ski/mechanical-watch/ - how does a mechanical... - Source: dev.to / about 4 years ago
  • Learn How To Create, Test and Deploy a Single Page App with Vue 3 + Vite and Pinia
    Fortunately we donโ€™t need to install, nor configure, any other tools, unless maybe some fancy reporters, but for now we can get everything we need in terms of end-to-end automated testing out of Nightwatch. Besides Chrome, Nightwatch has built-in support for all major browsers, including Firefox, Edge, and Safari, all thanks to its integration with the W3C Webdriver API and Selenium. It also allows you to use... - Source: dev.to / over 4 years ago
  • Free for dev - list of software (SaaS, PaaS, IaaS, etc.)
    Crossbrowsertesting.com - Manual, Visual, and Selenium Browser Testing in the cloud - free for Open Source. - Source: dev.to / almost 5 years ago
  • How do yโ€™all test responsiveness of website?
    Professionally, I do basically the same for dev testing. We also have various devices on different platforms/versions in the office when needed, and our QA team primarily uses Cross Browser Testing Tool. If I need to check something specific, I usually use CBT. Source: over 5 years ago
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Larm.dev mentions (2)

  • Ask HN: What Are You Working On? (May 2026)
    Iโ€™ve been building an uptime monitor service for a while now, something that is genuinely reliable and only alerts you when something is actually going on. Also comes with very pretty status pages! Free tier is enough for most users, paid tier just exists to gate the stuff that is expensive to run like SMS alerts. Check it out at [Larm](https://larm.dev) and try out the [response time checker... - Source: Hacker News / 2 months ago
  • Ask HN: What Are You Working On? (April 2026)
    Https://larm.dev, an uptime monitoring service with a focus on reliability and reduction in false positives. Iโ€™ve been building it for myself really but I figure itโ€™s worth sharing it with people in case someone else finds it useful too. Itโ€™s also a lot of fun to work on. Phoenix LiveView dashboard, go probes running on 4 continents, connected to the backend using websocket tunnels. Clickhouse for reporting. Even... - Source: Hacker News / 3 months ago

What are some alternatives?

When comparing CrossBrowserTesting and Larm.dev, you can also consider the following products

Sauce Labs - Test mobile or web apps instantly across 700+ browser/OS/device platform combinations - without infrastructure setup.

Uptime Kuma - A fancy self-hosted monitoring tool.

BrowserStack - BrowserStack is a software testing platform for developers to comprehensively test websites and mobile applications for quality.

UptimeRobot - Free Website Uptime Monitoring

browserling - Live interactive cross-browser testing from your browser.

Better Stack - Everything you need to ship higherโ€‘quality software faster.