No moat. Still in business.

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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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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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A self-hosted PHP blog engine for writers who want to run their own blog, extended with plugins and themes.

Free · Website builders · Individuals and families

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Connect your cloud servers and deploy, back up and manage WordPress, PHP and Node.js sites from a single dashboard.

Free plan · Developer tools · Agencies

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An Android app that keeps your two-step login codes in an encrypted vault, with backups and import from other apps.

Free · Security and passwords · Individuals and families

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A simple to-do list app you host yourself, with several lists, tags, due dates and priorities.

Free · Projects and tasks · Individuals and families

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Lets developers share live progress of scripts and jobs through a link, via an API or a tqdm replacement.

Uptime and monitoring · Developers

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French open source e-commerce platform for building custom online stores, with click and collect and ERP or CRM connections.

Free · Online shops · Shops and retail

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Free offline notebook app that keeps notes on your device with themes, PDF export and one-click backups, no account required.

Free · Notes and knowledge · Individuals and families

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Video player for language learners that shows two subtitle tracks at once, generates subtitles and translates them live.

Free · Video and audio · Individuals and families

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Open source document management system you host yourself to store files and run review workflows.

Free · Documents and e-signature

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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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Ad-free app that teaches children aged 3 to 14 one of 19 languages through listening, speaking and reading along.

Since 2024

Free plan · Courses and learning · Individuals and families

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Teaches English, Spanish, French and other languages through song lyrics, with spaced repetition for new words.

Since 2024

Courses and learning · Individuals and families

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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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Flash card app for learners to keep their own word lists and practise them with spaced repetition on Apple devices.

Courses and learning · Individuals and families

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Lightweight blog software in plain PHP that stores posts as files, with themes, plugins and comment spam protection.

Free · Website builders · Individuals and families

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Mobile app where learners practise speaking a new language with AI characters and get pronunciation scores.

Since 2024

Courses and learning · Individuals and families

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Runs and manages databases on Kubernetes, covering provisioning, scaling, backups and upgrades for platform teams.

Developer tools · Developers

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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 self-hosted content management system built on Laravel that developers and studios use to build client websites.

Subscription · Website builders · Agencies

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Mac app that runs Nginx, PHP, MySQL, PostgreSQL and Redis locally for web developers without Docker or VMs.

Since 2022

Free plan · Developer tools · Developers

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A self-hosted panel for running game servers in Docker containers, for friends' groups or hosting companies.

Free · Developer tools · Software companies

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Deploys Docker Compose apps from GitHub to your own Linux servers on each push, with domains, logs and backups.

Developer tools · Developers

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A small PHP blog engine you install on ordinary web hosting, with themes and an easy admin panel.

Free · Website builders · Individuals and families

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Browser extension that swaps sentences on the pages you read into the language you are learning, scaled to your level.

Since 2024

Subscription · Courses and learning · Individuals and families

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Helps intermediate language learners reach fluency through spoken chats with an AI tutor, corrections and daily articles.

Courses and learning · Individuals and families

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Listening drills that help language learners catch spoken numbers, phone numbers and clock times in over two dozen languages.

Courses and learning · Individuals and families

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A Chrome extension that translates X and Reddit posts and quizzes you on new words, for people learning English.

Since 2026

Subscription · Courses and learning · Individuals and families

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Learn Japanese or Korean by tapping words in YouTube videos, manga and books, with flashcards that track what you know.

Since 2025

Free plan · Courses and learning · Individuals and families

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Runs versioned SQL and Python database migrations with dry runs, history checks and rollbacks, for Python teams.

Since 2026

Free plan · Developer tools · Developers

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Hosts PocketBase backends with deploy on push, backups and custom domains at a flat price, for indie developers and freelancers.

Since 2026

Subscription · Developer tools · Agencies

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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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Point any domain at any URL with automatic HTTPS, path rules and hit analytics, no server to run.

Free plan · Website builders

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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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WordPress plugin that schedules site backups, stores them off site and moves sites between hosts or to staging.

Free plan · Website builders

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Dashboard for agencies and freelancers to update, back up, monitor and report on many WordPress client sites at once.

Subscription · Uptime and monitoring · Agencies

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Short Spanish stories pitched at the words an A2 to B1 learner already knows, with unknown words brought back for review.

Since 2026

Free plan · Courses and learning · Individuals and families

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Translates words and short phrases with examples and pronunciation, then saves them to a personal list for language learners.

Since 2026

Courses and learning · Individuals and families

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Save new words from what you read or watch, get AI definitions and examples, then review them with FSRS flashcards on Apple devices.

Since 2025

Free plan · Courses and learning · Individuals and families

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A language app where a partner or friend fills in words, audio and sentences for you to study, on iPhone and Android.

Since 2025

Courses and learning · Individuals and families

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Backs up your servers, Postgres, MySQL and MongoDB databases, Docker volumes and Kubernetes on a schedule into S3 storage you control.

Free plan · Developer tools · Agencies

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Pools GPUs and CPUs from many cloud providers and your own servers so developers can run large data jobs in one place.

Since 2026

Developer tools · Developers

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Language learning app where you add the words you need and it builds practice sessions around them, in 20+ languages.

Since 2025

Free · Courses and learning · Individuals and families

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A local desktop editor for writing language courses with lessons and self-marking exercises, plus a free app to study them.

Since 2026

Free · Courses and learning · Creators and writers

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A language learning app for 77 languages where every lesson ends with you saying the sentence aloud and getting feedback.

Since 2026

Free plan · Courses and learning · Individuals and families

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Alerts you by email, Slack or a ticket when a cron job, backup or pipeline misses its expected check-in.

Since 2026

Free plan · Uptime and monitoring · 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