No moat. Still in business.

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Excel add-in for querying tables with SQL, scripting workbooks in C# and building custom Excel functions.

Since 2016

Free plan · Data and spreadsheets · Developers

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Runs browser and API checks against your app from many regions and alerts you when they fail, set up as code.

Since 2021

Free plan · Uptime and monitoring · Developers

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File-based content management system that developers and agencies set up for client sites, with an editing panel.

Website builders · Agencies

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Sets up and manages your web servers and handles site deployments, with extra help for Laravel apps.

Subscription · Developer tools · Agencies

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Minimal self-hosted kanban board for teams that want drag and drop tasks, WIP limits and filters without extras.

Free · Projects and tasks

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A Markdown notes app for developers with encrypted sync, plugins and an API that coding agents can use.

Subscription · Notes and knowledge · Developers

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A browser interface for running a 3D printer remotely, with webcam view, job progress, a GCODE viewer and plugins.

Free · Something else · Individuals and families

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Mac and Windows app that lets you translate, run OCR, call AI or use plugins on selected text and files without switching apps.

Free plan · Focus and productivity · Individuals and families

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Free PHP forum software you install on your own server to run a discussion community.

Free · Communities and memberships

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Sends alerts to on-call staff, handles their rotas and runs status pages so tech teams can respond to outages quickly.

Since 2020

Free trial · Uptime and monitoring · Developers

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Monitors websites, servers, cron jobs, DNS records and SSL certificates, with alerts and public status pages.

Since 2024

Free plan · Uptime and monitoring · Developers

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Hosted status pages with built-in uptime checks, so you can keep customers informed during outages and cut support tickets.

Free plan · Uptime and monitoring · Software companies

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Monitors website uptime from several countries, tries automatic recovery, and calls or texts you if the problem stays.

Subscription · Uptime and monitoring

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Gathers status updates from thousands of cloud services you depend on, warns you about outages and shows them on one page.

Uptime and monitoring · Software companies

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Free CI/CD engine you host yourself that runs pipeline steps in Docker containers and can be extended with plugins.

Free · Developer tools · Developers

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Checks your websites, SSL certificates, DNS and domains every 30 seconds and alerts you when something breaks or expires.

Free plan · Uptime and monitoring · Agencies

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A free status page you host yourself to tell customers about outages, incidents and planned maintenance.

Free · Uptime and monitoring · Software companies

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Alerts you when a cron job misses its ping or a site, certificate or domain has a problem, with status pages included.

Free plan · Uptime and monitoring · Agencies

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Watches the status pages of thousands of outside services and alerts you when the ones you depend on go down.

Since 2024

Free plan · Uptime and monitoring · Developers

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Checks your websites, SSL, ports and cron jobs, confirms outages from other regions and runs status pages on your domain.

Since 2024

Free plan · Uptime and monitoring · Online sellers

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Flexible CMS for custom websites, with Twig templates or a GraphQL API, plus a plugin store and optional commerce.

Website builders · Agencies

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A cloud workspace for creating, running and sharing marimo Python and SQL notebooks for data work

Since 2024

Developer tools · Developers

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Checks websites, APIs and cron jobs every 30 seconds and confirms an outage before alerting your team.

Subscription · Uptime and monitoring · Developers

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Monitors websites and Linux servers, sends alerts by email, SMS or call, and hosts branded status pages on your domain.

Free plan · Uptime and monitoring · Developers

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Tells developers when scheduled jobs, agents, websites or APIs fail or run late, and hosts status pages for customers.

Free plan · Uptime and monitoring · Developers

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Spreadsheet that links to databases and files and lets AI write the formulas, Python and charts for you.

Since 2023

Data and spreadsheets

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Checks your websites, APIs and ports and messages you on WhatsApp after repeated failures, with status pages and SSL checks.

Free plan · Uptime and monitoring · Developers

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Runs incidents from alert to postmortem for engineering teams, with on-call rotas, escalations and status pages included.

Free plan · Uptime and monitoring · Developers

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Open source uptime checks, alerts and public status pages that you or an AI agent can manage, with no charge per monitor.

Free plan · Uptime and monitoring · Developers

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Uptime checks for sites, APIs, databases and queues you run on your own server, with alerts and public status pages.

Free · Uptime and monitoring · Developers

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Open-source monitoring you host yourself for websites, servers, containers and SSL, with status pages and alerts.

Free · Uptime and monitoring · Developers

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A free status page and uptime monitor you run in Docker, with incident updates, maintenance plans and subscriber notices.

Free · Uptime and monitoring · Developers

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Checks websites and APIs from several regions, alerts whoever is on call and runs a public status page.

Free plan · Uptime and monitoring · Agencies

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Spots DDoS attacks on your servers within a second and triggers firewall, BGP or scrubbing responses.

Since 2026

Subscription · Uptime and monitoring · Developers

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Watches websites and APIs, alerts you on several channels, tracks incidents and hosts status pages, all from an independent EU company.

Since 2025

Free plan · Uptime and monitoring · Agencies

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Alerts you when AI agent runs, cron jobs or CI pipelines fail, stall or never start, with status pages.

Free plan · Uptime and monitoring · Developers

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Catches missed cron runs, stalled background jobs and site downtime through heartbeat pings, with public status pages.

Free plan · Uptime and monitoring · Developers

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A web workspace where analysts write SQL over market prices, macro series and SEC filings, then chart the results without Python.

Since 2026

Subscription · Data and spreadsheets

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Scans your site to suggest checks for SSL, DNS and outside services like payment providers, then monitors them with status pages.

Free plan · Uptime and monitoring · Online sellers

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Self-hosted uptime checks from probes in several regions that agree before alerting, plus status pages for small teams.

Free · Uptime and monitoring · Developers

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Checks your site is up, sends alerts to Telegram or a webhook, and adds logs, metrics and a public status page.

Since 2025

Free plan · Uptime and monitoring · Developers

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A status page and endpoint monitor you install on your own server, with incident updates by email and Slack.

Free · Uptime and monitoring · Developers

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Monitors client sites, servers, SSL, domains and cron jobs, and publishes white-label status pages for agencies and dev teams.

Free plan · Uptime and monitoring · Agencies

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Tests your website in an actual browser on a schedule, catching layout changes in screenshots and broken user journeys.

Since 2023

Free trial · Uptime and monitoring · Developers

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Calls your URLs and scripts on a schedule, down to every minute, and alerts you when a run fails.

Free · Uptime and monitoring · Developers

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Open-source uptime monitor you run yourself, checking sites, ports, DNS and SSL, with status pages and alerts.

Since 2025

Free · Uptime and monitoring · Developers

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Checks that your websites are up, fast and have valid SSL, and shows the results on clean status pages you can share with clients.

Free plan · Uptime and monitoring · Agencies

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A native Mac two pane file manager for keyboard users with themes, archive browsing and a Lua plugin system.

Something else · Individuals and families