No moat. Still in business.

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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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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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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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Collects traces, metrics and logs through OpenTelemetry for engineering teams, hosted or on your own servers.

Since 2022

Free trial · Uptime and monitoring · Developers

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Converts PDF files into Markdown, keeping tables and turning equations into LaTeX, with DOCX and PDF export.

Since 2026

Free plan · Documents and e-signature

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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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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 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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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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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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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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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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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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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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Lets teams building AI agents run simulations, evaluate outputs and trace failures in production.

Free plan · Developer tools · Developers

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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 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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Tracks cost, calls and errors in AI apps and agents through OpenTelemetry, either self-hosted or on their managed cloud.

Since 2026

Subscription · Uptime and monitoring · Developers

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An observability backend on ClickHouse that takes logs, metrics, traces and profiles and lets teams query them in Grafana.

Free plan · Uptime and monitoring · Developers

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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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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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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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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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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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Monitors AI agents and LLM apps running live for engineering teams, works out why they break and proposes prompt fixes.

Since 2026

Free · 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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A fast desktop notes app with blocks, Markdown, images and task boards, storing notes locally first.

Free · Notes and knowledge · Individuals and families

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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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Tracing and anomaly alerts for AI agent pipelines, so developers catch failures they were not watching for.

Since 2026

Free plan · Uptime and monitoring · Developers

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Tracks the AI agents a company runs in production, showing their costs, flagging leaked personal data and enforcing usage rules.

Since 2026

Uptime and monitoring · Developers

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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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Collects traces, logs, metrics and session replays from OpenTelemetry for $39 a month, with EU hosting or self-hosting.

Subscription · Uptime and monitoring · Developers

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A browser extension that clips pages, videos and threads into Markdown files on your disk for Obsidian or AI assistants.

Since 2026

Notes and knowledge · Individuals and families

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Observability for logs and traces that answers questions in Slack and drafts fix pull requests when alerts fire.

Since 2026

Free plan · Uptime and monitoring · Developers

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A free desktop notes app that keeps each note as a local Markdown file, with one box to search, create and link notes.

Since 2026

Free · Notes and knowledge · Individuals and families

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Stores and queries logs, metrics and traces on object storage at low cost, as a managed cloud or on your own servers.

Since 2026

Uptime and monitoring · Developers

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A private Android journal that saves entries as Markdown files, lets you edit from a laptop browser and backs up to Git.

Since 2026

Free plan · Notes and knowledge · Individuals and families

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Free notes app that keeps journals, checklists and linked ideas as private Markdown files, with a chat-style capture box.

Since 2026

Free · Notes and knowledge · Individuals and families

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Browser LaTeX and Markdown editor where researchers write papers together, manage references and track AI help.

Since 2026

Free plan · Documents and e-signature · Individuals and families

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A shared Markdown editor where teams and coding agents write documents and build small internal tools stored in git.

Developer tools · Developers

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Traces AI coding agent runs, spots where they fail and enforces rules that stop repeat failures as they happen.

Since 2026

Free plan · Uptime and monitoring · Developers

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Ties logs and traces from iOS and Android apps to backend services so app teams can trace a user problem to its cause.

Since 2025

Uptime and monitoring · 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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Watches your AI agent's real traffic, finds where it fails customers and opens tested pull requests with fixes.

Since 2026

Subscription · Uptime and monitoring · 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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A self-hosted knowledge base that serves Markdown files as searchable, editable docs for teams.

Free · Notes and knowledge

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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

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Deploys apps from a GitHub repo onto a server in your own cloud account, with HTTPS and redeploys on each push.

Since 2026

Free plan · Developer tools · Developers