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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Daily notes app that puts project notes, tasks, Apple Calendar events and Reminders side by side for planning each day.

Since 2020

Subscription · Notes and knowledge · Individuals and families

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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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Paste or upload HTML and get clean Markdown back, in the browser or through an API.

Since 2024

Developer tools · Creators and writers

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Markdown app for Mac and iOS to write, keep notes and publish them as a static blog.

One-off payment · Website builders · Individuals and families

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Markdown document editor where teams and AI agents like Claude and ChatGPT write together live, with presentations and blog publishing.

Since 2026

Free plan · Documents and e-signature · Developers

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Gets and renews free Let's Encrypt SSL certificates on cPanel shared hosting without command line work.

Free plan · Security and passwords

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A small app that slides in from the screen edge so you can jot notes and tasks and plan your day without switching apps.

Since 2026

Projects and tasks · Individuals and families

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A plain, ad-free blog host for writers who want markdown posts, RSS and email subscribers on their own domain.

Free plan · Newsletters · Individuals and families

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Desktop data analysis app where you ask about your data in plain English and get Python code, charts and notebooks run on your computer.

Since 2017

Data and spreadsheets

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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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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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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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A simple self-hosted wiki that stores markdown pages in git, with file attachments and full page history.

Free · Notes and knowledge

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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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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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An API that crawls whole websites and returns tidy markdown for teams feeding RAG systems or training models.

Since 2024

Free plan · Developer tools · Developers

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An editing dashboard for Markdown and MDX kept in your GitHub repo, so clients can update static sites without Git.

Since 2022

Free plan · Website builders · Agencies

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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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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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Simple blog hosting with no ads or tracking: write in markdown and drag files in to publish, for a small monthly fee.

Since 2024

Subscription · Website builders · Individuals and families

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Small text app for jotting and keeping short notes, synced via iCloud to iPhone, iPad, Watch and Mac.

Notes and knowledge · Individuals and families

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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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A Mac notes app that keeps notes as plain Markdown text files in folders you choose, with links between notes.

Free · Notes and knowledge · Individuals and families

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Write product documentation and user manuals in Markdown and publish them as a website, PDF or eBook.

Free plan · Website builders · Software companies

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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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A Mac app for writing and linking plain Markdown notes in your own folders, with boards, tables and optional AI help.

Since 2026

Free plan · Notes and knowledge · Individuals and families

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A self-hosted place to jot quick markdown notes in a personal timeline, keeping each private or shared.

Notes and knowledge · Individuals and families

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Edit HTML and Markdown files stored in Google Drive and put them on a public web address in one step.

Since 2026

Free plan · Website builders

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Serves Apple developer documentation as Markdown so coding assistants can read it, by URL swap or over MCP.

Free · Developer tools · Developers

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Fixes the mixed content and insecure content warnings a WordPress site shows after it moves to HTTPS.

Website builders

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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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Drop in papers, notes and transcripts and an AI agent files them into a cited, linked markdown wiki you keep.

Since 2026

Notes and knowledge · Individuals and families

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A self-hosted knowledge base that serves Markdown files as searchable, editable docs for teams.

Free · Notes and knowledge

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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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Converts PDFs, office files and scans into clean Markdown, JSON or chunks ready for AI and search pipelines.

Since 2025

Free plan · Developer tools · Developers

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Transcribes meetings, calls and voice memos on your own machine into markdown files that your AI assistant can search.

Free · Notes and knowledge · Individuals and families

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Hosted blog service where you write in Markdown or HTML, add your own CSS and JavaScript, and publish under your own domain.

Since 2026

Website builders · Individuals and families

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Records every AI agent decision in a signed, tamper-evident log so teams can show regulators what their AI did under the EU AI Act.

Since 2026

Free plan · Developer tools · Developers

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Notes app for developers and ops engineers where shell, code, SQL and prompt blocks in Markdown run in place and print results below.

Since 2026

Free · Developer tools · Developers