Software Alternatives, Accelerators & Startups

IsDown.app VS ToolJet

Compare IsDown.app VS ToolJet and see what are their differences

IsDown.app logo IsDown.app

When a vendor goes down, does your team find out in seconds or after users start complaining? IsDown monitors 6,000+ official status pages and alerts your team within seconds across Slack, PagerDuty, Datadog, and more. 14-day free trial

ToolJet logo ToolJet

Open-source alternative for Retool
  • IsDown.app All Your Vendors. One Real-Time View.
    All Your Vendors. One Real-Time View. //
    2026-03-03
  • IsDown.app 26 Integrations. Alerts Where Your Team Already Works.
    26 Integrations. Alerts Where Your Team Already Works. //
    2026-03-03
  • IsDown.app Monitor Any Vendor. Filter What Matters.
    Monitor Any Vendor. Filter What Matters. //
    2026-03-03
  • IsDown.app One Status Page for Your Whole Team.
    One Status Page for Your Whole Team. //
    2026-03-03
  • IsDown.app Full Incident Context, Not Just an Alert.
    Full Incident Context, Not Just an Alert. //
    2026-03-03
  • IsDown.app Vendor Accountability, Backed by Data.
    Vendor Accountability, Backed by Data. //
    2026-03-03

IsDown was built out of frustration at 4 AM. Nuno Tomas, founder and on-call engineer, spent 30 minutes debugging an alert before realising the cloud provider had an outage posted on their status page, but nobody was watching it. That night, he decided there had to be a better way.

Today, IsDown monitors 6,000+ cloud and SaaS services, has performed over 1 billion status checks, has detected 520,000+ outages, and has sent 5.2 million+ notifications. Trusted by IT, DevOps, and engineering teams since 2020.

What makes IsDown different: it reads official vendor status pages directly, not just crowdsourced reports. Combined with early detection signals, it catches outages before vendors acknowledge them, sometimes hours ahead. In January 2026 alone, IsDown detected 101 incidents that vendors never officially reported.

Key capabilities: - Monitor 6,000+ services from one dashboard. Filter by service, component, or severity. - Get alerts within seconds in Slack, PagerDuty, Datadog, Microsoft Teams,ย Incident.io, FireHydrant, Grafana, Discord, SMS, and wherever your team works. - Track scheduled maintenance across all vendors in a live feed and calendar, so nothing slips through unnoticed. - Create public or private hosted status pages with your own domain and branding. - Monitor your own APIs, endpoints, and SSL certificates from US, EU, and Asia. - Built for enterprise: SSO (SAML, OAuth), SOC 2 Type II in progress, MCP Server for AI assistant queries.

Setup takes 5 minutes. No engineering required. 14-day free trial, no credit card needed.

  • ToolJet Landing page
    Landing page //
    2023-09-07

IsDown.app

Website
isdown.app
$ Details
paid Free Trial $27.0 / Monthly (Starter)
Platforms
Web
Release Date
2020 May
Startup details
Country
Portugal
City
Lisbon
Founder(s)
Nuno Tomรกs

ToolJet

$ Details
Platforms
-
Release Date
-

IsDown.app features and specs

  • Status Dashboard
  • Multiple Team Boards
  • Slack App
  • Zapier Integration
  • Scheduled maintenances feed
  • Weekly Digest
  • Datadog Integration
  • Uptime Monitoring
  • Keyword Monitoring
  • SSL Monitoring
  • PagerDuty Integration
  • Custom Endpoint Monitoring
  • Public Status Pages
  • Private Status Pages
  • Early Outage Detection
  • SSO / SAML
  • Microsoft Teams Integration
  • Incident.io Integration
  • Historical Uptime Data
  • MCP Server
  • Multi-region Monitoring

ToolJet features and specs

  • Open-source
    ToolJet is an open-source platform, which means you can customize the tool to fit your specific needs while also benefiting from community contributions and transparency.
  • No-code/Low-code
    ToolJet allows users to build powerful applications with minimal to no coding, making it accessible to non-developers and reducing the time required to develop applications.
  • Integration
    ToolJet offers integrations with various databases, APIs, and third-party services, enabling seamless data flow and interaction with other tools.
  • Extensibility
    The platform can be extended with custom widgets and functionalities, allowing developers to add specific features not available out-of-the-box.
  • Community Support
    As an open-source tool, ToolJet has a growing community of users and developers who contribute to its development and provide support through forums and repositories.

Possible disadvantages of ToolJet

  • Learning Curve
    Despite its no-code nature, there might be a learning curve for non-developers unfamiliar with the concepts of application building and data management.
  • Documentation
    As with many open-source projects, documentation quality can vary and may not be as comprehensive as that of commercial alternatives.
  • Scalability
    Depending on deployment and usage, scaling applications might require additional infrastructure management and technical know-how.
  • Support
    While community support is available, it might lack the immediate and guaranteed assistance found in commercial products with dedicated support teams.
  • Feature Gaps
    Being a relatively newer and open-source tool, ToolJet may lack some advanced features found in more mature or commercial platforms.

Analysis of ToolJet

Overall verdict

  • Overall, ToolJet is considered a reliable and efficient tool for building applications fast, especially suited for teams looking to reduce development time and costs while maintaining flexibility and control over their projects.

Why this product is good

  • ToolJet is a low-code platform that allows developers and teams to build and deploy applications quickly without extensive coding. It includes a variety of built-in features such as integrations with databases and APIs, drag-and-drop interface components, and collaborative tools that facilitate teamwork. Its open-source nature also allows users to customize and extend its functionalities as needed.

Recommended for

  • Startups looking to prototype quickly
  • Developers seeking to reduce coding time
  • Teams requiring a collaborative development environment
  • Organizations wanting to build internal tools efficiently
  • Non-developers needing to create applications with minimal coding

IsDown.app videos

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Add video

ToolJet videos

ToolJet - Introduction

More videos:

  • Review - FOSS Meetup - July 2021 | AdonisJS | Cloud Native chaos | ToolJet | FOSS United

Category Popularity

0-100% (relative to IsDown.app and ToolJet)
Monitoring Tools
100 100%
0% 0
No Code
0 0%
100% 100
Website Monitoring
100 100%
0% 0
Developer Tools
0 0%
100% 100

Questions & Answers

As answered by people managing IsDown.app and ToolJet.

What makes your product unique?

IsDown.app's answer

IsDown monitors official vendor status pages directly, not just crowdsourced reports. This means alerts include real incident context: what broke, which components are affected, and real-time resolution status. Not just "something is down." Combined with crowdsourced early detection signals, IsDown can catch outages before vendors acknowledge them. In January 2026 alone, IsDown detected 101 incidents that vendors never officially reported. Every team monitoring cloud services already has uptime tools that ping their own URLs. IsDown tells you what is happening with the third-party services your stack depends on, before your users feel it.

Why should a person choose your product over its competitors?

IsDown.app's answer

Three reasons:

  1. Coverage: 6,000+ services monitored. If your vendor has a status page, IsDown monitors it.
  2. Speed and context: Alerts go out within seconds of an incident, with full context including affected components, official vendor description, and real-time updates. Not just a notification that something is wrong.
  3. IsDown does not replace your existing tools, it completes them. UptimeRobot and Pingdom tell you your own services are down. IsDown tells you which of your third-party vendors caused it, and exactly what is happening on their end. Setup takes 5 minutes. No engineering required.

How would you describe the primary audience of your product?

IsDown.app's answer

IsDown is built for IT managers, DevOps engineers, and SREs at companies that rely on multiple cloud and SaaS services, which means any team running on cloud infrastructure. The core audiences are DevOps and SRE teams who are on-call and need to know instantly when a third-party service causes an incident; IT managers responsible for vendor oversight and SLA compliance; MSPs and agencies managing cloud infrastructure for multiple clients; and engineering teams who want to stop wasting time debugging problems that turn out to be vendor outages. Customers span SaaS companies, schools, DevOps agencies, and enterprise IT teams across industries.

What's the story behind your product?

IsDown.app's answer

IsDown was built out of frustration at 4 AM. Nuno Tomas, the founder, was on-call when a PagerDuty alert woke him up. After 30 minutes of debugging, he realised the problem was not his code. It was the cloud provider. They had posted an outage on their status page, but nobody on the team was watching it. That night, he decided there had to be a better way. He built the first version of IsDown so his team would never be the last to know about a vendor outage. Founded in 2020, IsDown has since grown to monitor 6,000+ services, perform over 1 billion status checks, detect 520,000+ outages, and send 5.2 million+ notifications. The same problem Nuno solved for his team that night is now solved for IT, DevOps, and engineering teams around the world.

Who are some of the biggest customers of your product?

IsDown.app's answer

IsDown is used by IT, DevOps, and engineering teams across SaaS companies, MSPs, DevOps agencies, schools, and enterprise IT departments.

Which are the primary technologies used for building your product?

IsDown.app's answer

IsDown is a web-based SaaS application. The core product runs on modern cloud infrastructure with multi-region monitoring across US, EU, and Asia to ensure reliable status checks and fast alert delivery worldwide. IsDown integrates directly with Slack, PagerDuty, Datadog, Microsoft Teams,ย Incident.io, FireHydrant, Grafana, Rootly, Zendesk, and more, connecting alerts to wherever your team already works. For teams using AI assistants, IsDown offers an MCP (Model Context Protocol) Server that allows querying IsDown data directly from AI tools like Claude or ChatGPT.

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare IsDown.app and ToolJet

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ToolJet Reviews

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Social recommendations and mentions

Based on our record, ToolJet should be more popular than IsDown.app. It has been mentiond 13 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.

IsDown.app mentions (6)

  • Top 10 Statuspage.io Alternatives in 2025
    A specialized status page aggregator designed for internal team communication and vendor dependency monitoring. Unlike public status page creators, IsDown monitors 4,500+ third-party vendor status pages (AWS, Azure, GitHub, Stripe, etc.) and lets you create private status pages with SSO protection. - Source: dev.to / 7 months ago
  • Build or Buy Your Third-Party Monitoring System: Decision Guide
    Consider your growth trajectory. Will you be monitoring 10 services or 1000? Commercial solutions like IsDown are designed to scale effortlessly, while custom solutions often require significant rework as requirements grow. - Source: dev.to / 10 months ago
  • Best Downdetector Alternatives for Outage Monitoring in 2025
    Among them, IsDown stands out as a robust, business-focused solution. With real-time alerts, aggregated data from thousands of services, seamless integrations, and customizable dashboards, IsDown helps businesses stay ahead of outages and reduce downtime. Its combination of official updates and crowdsourced insights ensures accurate and timely information for faster response times. - Source: dev.to / 12 months ago
  • Bring third-party incidents into Better Stack
    The Better Stack integration is included with every paid IsDown plan. Sign up for a free 14-day trial โ€” or open Alerts & Integrations in your current IsDown account and add Better Stack now. Your team will see live incidents from AWS, Stripe, GitHub, and hundreds more, all inside the queue they already trust. - Source: dev.to / about 1 year ago
  • Connect all your vendors status pages to your Better Stack account
    Now you can monitor third-party outages right in your Better Stack account with https://isdown.app . What will you get? Single incident feed โ€“ Internal alerts and third-party outages appear in the same view. - Source: Hacker News / about 1 year ago
View more

ToolJet mentions (13)

  • Building an intelligent CRM using ChatGPT, PostgreSQL, and ToolJet
    You can also download its JSON file and import it into a ToolJet app, but you'll need to provide your Sendinblue credentials and OpenAI API key. - Source: dev.to / about 3 years ago
  • Adding ability to import packages using Micropip to our low-code web framework - ToolJet
    You can quickly try out this feature on ToolJet Cloud (https://tooljet.com) or on your local machine (https://docs.tooljet.com/docs/setup/try-tooljet). Source: over 3 years ago
  • Building Recruitment Management App using Appwrite and ToolJet (Part 1)
    ToolJet (https://github.com/ToolJet/ToolJet): A free and open-source low-code platform that allows you to quickly build applications. Sign up here. - Source: dev.to / about 4 years ago
  • Build a coupon code manager app in 30 minutes
    This tutorial will guide you to build a CRUD app that will let you create new coupons, edit or delete existing coupons. We will be using ToolJet to build this application and will use Google Sheets as the data source. - Source: dev.to / over 4 years ago
  • Best (Free) Web-based Front-end Form for an SQL Database
    Checkout https://retool.com/ or https://tooljet.com/. Built for exactly this purpose. Source: over 4 years ago
View more

What are some alternatives?

When comparing IsDown.app and ToolJet, you can also consider the following products

StatusGator - Early outage alerts for every app you rely on

Retool - Build custom internal tools in minutes.

UptimeRobot - Free Website Uptime Monitoring

Appsmith - Appsmith is an open source web framework for building internal tools, admin panels, dashboards, and workflows.

Phare.io - Keep your website up and running, empower your team with efficient incident management and keep your users informed during hard times.

Budibase - What Wordpress is to websites, Budibase is to web apps. Budibase is a free and open source web app builder for creating, launching and growing web applications. Budibase eliminates repetition and dramatically reduces development time. Check it out.