Software Alternatives, Accelerators & Startups

IsDown.app VS PostImage.org

Compare IsDown.app VS PostImage.org 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.

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

PostImage.org logo PostImage.org

Provides free image upload and hosting integration for forums.
  • 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.

  • PostImage.org Landing page
    Landing page //
    2021-09-27

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

PostImage.org

Pricing URL
-
$ 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

PostImage.org features and specs

  • Free Service
    PostImage.org offers free image hosting, making it accessible for anyone who wants to upload and share images without worrying about cost.
  • User-Friendly Interface
    The website has a simple and easy-to-use interface that allows users to upload images quickly without any technical hassle.
  • No Registration Required
    Users can upload images without having to create an account, which speeds up the process and enhances convenience.
  • Multiple Upload Options
    Supports various upload methods including drag-and-drop, file selection, and even direct web URLs for added flexibility.
  • Various Resize Options
    Allows users to resize images during the upload process, providing utility for different use cases such as forums, websites, and more.
  • Permanent Image Links
    Generates direct links, BBCode, and HTML code for easy sharing and embedding, which are intended to be permanent.

Possible disadvantages of PostImage.org

  • Image Moderation
    As free hosting, there is a possibility of images being removed if they are found to violate their terms of service, leading to potential broken links.
  • Ads on the Website
    The free service is ad-supported, and users might experience advertisements while navigating the website.
  • Limited Support
    Lack of customer support options may be a drawback for users who need assistance with issues or have specific requirements.
  • Image Size Limits
    There are limits on the size of images that can be uploaded (currently 24MB), which may be restrictive for high-resolution or professional media files.
  • No Advanced Features
    The service lacks advanced features that might be found in paid image hosting options, such as extensive privacy settings or advanced image editing.

Analysis of PostImage.org

Overall verdict

  • PostImage.org is generally considered a good option for those in need of simple and free image hosting, particularly for personal or small-scale use. Its ease of use and convenience make it a popular choice among casual users.

Why this product is good

  • PostImage.org is a popular image hosting service because it offers a straightforward, user-friendly interface for uploading and sharing images. It does not require an account for basic usage, supports various image formats, and offers direct links to images for easy sharing on forums and social media. Additionally, it provides unlimited storage and allows resizing of images during upload.

Recommended for

  • Individuals needing a quick and simple way to upload and share images online.
  • Users participating in forums or platforms where sharing image links is common.
  • People looking for a hassle-free image hosting service without account registration.
  • Those who require basic image resizing options during the upload process.

IsDown.app videos

No IsDown.app videos yet. You could help us improve this page by suggesting one.

Add video

PostImage.org videos

PostImage.org Review

More videos:

  • Review - postimage.org - Free Image Hosting

Category Popularity

0-100% (relative to IsDown.app and PostImage.org)
Monitoring Tools
100 100%
0% 0
Photos & Graphics
0 0%
100% 100
Website Monitoring
100 100%
0% 0
Image Hosting
0 0%
100% 100

Questions & Answers

As answered by people managing IsDown.app and PostImage.org.

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

Share your experience with using IsDown.app and PostImage.org. For example, how are they different and which one is better?
Log in or Post with

Reviews

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

IsDown.app Reviews

We have no reviews of IsDown.app yet.
Be the first one to post

PostImage.org Reviews

23 Best Free Image Hosting Sites (Upload & Share) in 2022
Moreover, you can add image uploading to your message board, blog, or website with the PostImage plugin. The images uploaded via this tool are saved to PostImagesโ€™ servers, saving you storage space, bandwidth, and the hassles of configuring your web server.
11 Best Image Hosting Sites for Personal to Business
You can create a large gallery with all your favourite photos. Each one will have a unique link that allows you to share them immediately with others. PostImage lets you choose the size of the final image, as well as the expiry date. Images meant to be shared once can have expiry dates such as one month, one weeks, or one day.
10 Best Image Hosting Sites for Personal and Business Purposes
Postimage is yet another open-source and free-to-use image hosting platform. It is a reliable image hosting site that can host images of size up to 8 MB. Postimage allows you to link uploaded images to message boards, auctions, websites, and blogs. Also, you do not have to register yourself for uploading pictures. Each picture uploaded on Postimage has a dedicated link....

Social recommendations and mentions

Based on our record, PostImage.org seems to be a lot more popular than IsDown.app. While we know about 343 links to PostImage.org, we've tracked only 6 mentions of IsDown.app. 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 / 8 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 / 11 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 / about 1 year 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 / over 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 / over 1 year ago
View more

PostImage.org mentions (343)

  • How to test open graph meta tags locally ?
    Local images won't share directly, upload the images in postimages or imgbb first, use the url in the meta tags. Then click the extension again to create a new sharer link! - Source: dev.to / over 2 years ago
  • Topography [3440x1440]
    I think sometimes the png downloaded from here may be compressed too. Compare the file sizes. From now on I think I will use postimages.org to supplement my posts. It is quick and easy to use. Maximum 10,000 pixels images make note. Source: over 2 years ago
  • Surface Interpolation
    You can host the image free (e.g. https://postimages.org/) and drop a link here. I don't understand the role of the ray in the fitting. Or is it that you want to just intersect the ray with the surface after fitting? In that case your problem breaks naturally into two parts. Source: over 2 years ago
  • Topography [3440x1440]
    Maybe consider using postimages.org as an additional link in the comments, so we can DL your full sized pngs. Bewilderingly, these are the 3 different images /variants I could download from a single one of your images. 6mb, 2mb and the .webp is 320kb! Source: over 2 years ago
  • Reddit Compression Test/Please Ignore [5160x2160]
    On and off. I distinctly remember testing some of my posts and the downloaded jpgs were the same size as the originals,not compressed down to 350kb! I wish I could find the set criteria they are working to. In the meantime I think using postimages.org after posting might be the way to go. Source: over 2 years ago
View more

What are some alternatives?

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

StatusGator - Early outage alerts for every app you rely on

Imgur - Imgur is a free and simple image hosting service with image editing feature. Signup is optional.

UptimeRobot - Free Website Uptime Monitoring

ImgBB - Upload and share your images.

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

Flickr - image and video hosting website