No moat. Still in business.

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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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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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Lightweight note app for phone and desktop that syncs through your own storage backend and encrypts notes end to end.

Notes and knowledge · Individuals and families

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Time tracker that runs in the browser and keeps entries on your device, with optional encrypted sync, for freelancers and staff.

Since 2023

Free · Time tracking · 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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Edit, merge, split, compress and OCR PDF files inside your browser, with documents kept on your own device.

Since 2025

Free plan · Documents and e-signature

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Free browser editor for vector and pixel artwork, with no account; files stay on your device.

Since 2026

Free · Design and images · Individuals and families

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Splits songs into vocal, drum and bass stems, changes speed or key and converts formats, all inside your browser.

Since 2026

Free · Video and audio · Individuals and families

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Send it your booking emails, PDFs or screenshots and it builds a day by day trip plan with live flight updates.

Since 2026

One-off payment · Travel · Individuals and families

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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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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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Browser drills for students learning formal and informal logic, with instant checking and explained mistakes.

Since 2026

Free · Courses and learning · Individuals and families

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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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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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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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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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Open and edit KeePass password files in any browser or from a local HTML file, with passkey unlock and no server.

Since 2026

Free · Security and passwords · 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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Merge, split, compress, sign and convert PDFs inside your browser, with files kept on your own device.

Since 2026

Free · Documents and e-signature

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Reads PDFs in dark mode without inverting photos or charts, and runs OCR on figures, all in the browser.

Since 2026

Free · Documents and e-signature · Individuals and families

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Edit, sign, merge and split PDFs in the browser, with files processed on your own device.

Since 2025

Free plan · Documents and e-signature

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Converts PDFs to Word, Excel, PowerPoint or text inside your browser, without uploading the file anywhere.

Since 2026

Free · Documents and e-signature

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Desktop app for Mac, Windows and Linux that converts documents, images, audio and video on your own computer.

Since 2025

One-off payment · Documents and e-signature

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A set of PDF tools that edit, merge, compress and convert files on your own device without uploading them.

Free · Documents and e-signature

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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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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

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An API that adds login, SSO and fine-grained permissions to the software you build.

Security and passwords · Developers

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Adds sign-in to your app with prebuilt screens for passwords, magic links, social login and SSO, self-hosted or managed.

Security and passwords · Developers

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Track personal transactions and forecast your money in an end-to-end encrypted app that works offline, without bank logins.

Since 2021

Subscription · Money and budgeting · Individuals and families

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Hosting for Python FastAPI apps that deploys with one command and handles scaling and HTTPS for developers.

Since 2026

Developer tools · Developers

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Sets up and manages your own cloud server to deploy Django apps, with a dashboard, CLI and API.

Since 2021

Free plan · Developer tools · Developers

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A hosted backend with database, auth, storage and functions that AI coding agents can set up and run for you.

Since 2025

Developer tools · Developers

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Managed backend with Postgres, GraphQL, user sign-in, file storage and serverless functions so developers can ship apps quickly.

Since 2020

Free plan · Developer tools · Developers

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Deploys apps from GitHub and adds sign-in, payments, scaling and monitoring, so small teams can skip building infrastructure.

Since 2026

Subscription · Developer tools · Developers

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Multi-tenant login and identity service with hosted login pages, SSO, passkeys and MFA for app builders.

Free plan · Security and passwords · Developers