No moat. Still in business.

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Make your own flashcard decks and review them on a spaced repetition schedule in the browser.

Since 2015

Free plan · Courses and learning · Individuals and families

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Open-source backend for app builders with auth, databases, storage, functions and hosting, run in the cloud or on your own servers.

Since 2021

Developer tools · 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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Self-hosted identity provider that gives an organisation single sign-on and login flows across its apps, with APIs and templates.

Security and passwords

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Helps students sort courses, tasks, class schedules, flashcards and files into colour-coded folders.

Free · Focus and productivity · Individuals and families

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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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A Mac app that shrinks videos, images, GIFs and PDFs in batches offline, for creators short on disk space.

Since 2024

Design and images · 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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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 free Windows app that cuts, joins and fades MP3 files in bulk without re-encoding, driven by text commands.

Since 2025

Free · Video and audio · Individuals and families

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Upload manga or comic pages and get them back with the dialogue translated and lettered into the speech bubbles.

Since 2025

Free plan · Something else · 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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An iPhone app that takes Japanese learners from beginner to fluent with one new sentence per flashcard and spaced review.

Since 2015

Courses and learning · Individuals and families

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A browser extension that saves and highlights words you look up on web pages, then drills them with flashcards.

Since 2020

Free plan · Courses and learning · Individuals and families

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Note app for students that builds flashcards, quizzes and summaries from notes and PDFs with spaced repetition.

Since 2021

Free plan · Courses and learning · Individuals and families

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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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Hosted app backend with database, user login and generated REST and GraphQL APIs, so developers skip running servers.

Developer tools · Developers

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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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Students turn class notes or a PDF into a practice test that marks itself and explains each question they got wrong.

Since 2024

Free plan · Courses and learning · Individuals and families

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A study app for students with spaced repetition flashcards, made from notes and PDFs, and scheduled around your calendar.

Free plan · Courses and learning · Individuals and families

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Serverless Postgres that keeps each customer's data and vector embeddings in its own virtual database, for teams building B2B SaaS.

Developer tools · Developers

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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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Hosts apps from Git on European servers and adds user login through a hosted OAuth and OpenID Connect server.

Free plan · Security and passwords · 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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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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Flashcard maker that schedules reviews by spaced repetition, with dictionaries and text to speech for language learners.

Since 2024

Free plan · Courses and learning · Individuals and families

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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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Flashcard app for iPad and iPhone where students draw, type or add images to cards and review them with spaced repetition.

Since 2024

Courses and learning · Individuals and families

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Flashcard app that uses spaced repetition so learners review hard cards more often, with sync between devices.

Courses and learning · Individuals and families

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Free open source desktop tool that wipes hidden metadata such as EXIF from many photos, videos and PDF files at once.

Free · Security and passwords · Individuals and families

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Managed hosting of the open-source Para backend with a JSON API, login, search and backups, priced per app.

Free plan · Developer tools · Developers

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Login, passkeys, SMS and WhatsApp codes, SSO and user management for apps, run in their cloud or on your servers.

Free plan · Security and passwords · Developers

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An app for learning Japanese with an AI tutor, speaking roleplays, kanji, quizzes and a personal study plan.

Since 2026

Free plan · Courses and learning · 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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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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Open-source login service with passkeys, 2FA and SSO for app makers, run in Hanko's cloud or on your own servers.

Since 2025

Free plan · Security and passwords · Developers

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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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A language app that translates words offline, saves them to your own tagged word list and helps you review them with flashcards.

Since 2025

Courses and learning · Individuals and families

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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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Turns notes, PDFs or images into flashcards you can study online, share by link or print.

Since 2025

Free · Courses and learning · Individuals and families

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Turns PDFs and notes into flashcards you can review and edit, then export to Anki, Mochi or SuperMemo.

Since 2026

Subscription · Courses and learning · Individuals and families

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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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Hover over Chinese text in any Mac app to see pinyin, meanings and sentence breakdowns, and save words as flashcards.

Since 2026

Free plan · Courses and learning · Individuals and families