No moat. Still in business.

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Desktop and web client for querying and editing SQL and NoSQL databases such as PostgreSQL, MySQL and MongoDB.

Since 2021

Free · Developer tools · Developers

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Turns a Postgres or MySQL database, or a new one, into a shared spreadsheet with kanban, form and gallery views.

Since 2021

Free plan · Data and spreadsheets

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CAPTCHA and bot blocking that stops scrapers, fake signups and account takeover on forms, APIs and full sites, explaining each block.

Free plan · Security and passwords

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Open-source error tracker that ranks frontend bugs from errors and session replays and opens fix pull requests on GitHub.

Since 2024

Uptime and monitoring · Developers

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Mac app that opens a floating note on a shortcut so you can jot a thought, saved as a local markdown file.

Free · Notes and knowledge · Individuals and families

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A blog engine for groups of writers who edit the same post and photo gallery together in real time, self-host or hosted.

Since 2026

Website builders · Individuals and families

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A desktop task manager that keeps tasks, habits and goals in plain org-mode files, with an AI assistant and git sync.

Since 2026

Projects and tasks · Individuals and families

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Open source support chat and inbox for apps built with React or Next.js, where an AI agent handles routine questions and staff step in.

Customer support · Developers

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Build multi-step forms and surveys from short code or markup, with a WordPress plugin and Google Sheets saving.

Since 2025

Free plan · Forms and surveys · Developers

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An AI agent turns your notes into investor and board decks built as web code and hosted on your own domain.

Since 2026

Documents and e-signature · Software companies

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Dashboard for email sent through Amazon SES showing bounces, deliveries, complaints, opens and clicks, run yourself or hosted.

Free · Transactional email · Developers

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Free browser app for building and editing a family tree without an account, saving it as a standard GEDCOM file.

Free · Family and parenting · Individuals and families

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Desktop app for querying and managing MySQL, Postgres, SQLite and many other databases, with paid team features.

Since 2020

Free plan · Developer tools · Developers

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Free open source desktop tool that plots millions of table rows visually so analysts can spot outliers and odd patterns.

Since 2024

Free · Data and spreadsheets

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Hosted Postgres that clones databases in seconds so each developer, CI run or agent gets its own copy, and idles at zero.

Since 2022

Developer tools · Developers

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Keeps a local SQLite copy on each client in sync with your Postgres, MongoDB, MySQL or SQL Server backend for offline-first apps.

Since 2023

Free plan · Developer tools · Developers

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Self-hostable platform for deploying apps and databases across your own servers, with backups and user roles.

Free trial · 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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A browser database editor you deploy next to your databases so a team can query Postgres, MySQL, MongoDB and more.

Free · Developer tools · Developers

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Entity relationship diagram tool for exploring, documenting and linting large database schemas, made for developers and data teams.

Free plan · Developer tools · Developers

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Self-hosted platform for managing Git, Subversion and Mercurial repos with shared code review and permissions.

Free · Developer tools · Developers

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An open-source Mac and iPhone notes app that keeps Markdown as plain files, syncs over iCloud and backs up to Git.

Notes and knowledge · Individuals and families

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A light self-hosted Git server with a web interface that runs as one binary or Docker container on small machines.

Free · Developer tools · Developers

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Lets non-technical staff view, edit and query Postgres tables in a spreadsheet-style screen, using the database's own permissions.

Free · Data and spreadsheets

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Copies chosen Jira projects and Confluence spaces into a local SQLite file so you can search offline and run SQL on your backlog.

Developer tools · Developers

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Open-source AI analyst for data teams that links any LLM to company data and answers questions in a web app or Slack.

Since 2025

Data and spreadsheets

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An open-source visual editor for websites and Markdown with live preview, Git and an optional paid AI tier.

Since 2026

Free plan · Developer tools · Developers

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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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A self-hosted CMS in one Go binary with built-in SEO, forms, AI crawler analytics and a WordPress importer.

Since 2026

Website builders

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A desktop tool to design PostgreSQL schemas visually, reverse engineer live databases and diff them between environments.

Free trial · Developer tools · Developers

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Self-hosted docs and wiki software with templates, approval steps and read analytics for company know-how.

Free plan · Notes and knowledge

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Gives each local dev server or container a stable domain so developers avoid port clashes, with paid tunnels to LAN and the internet.

Since 2026

Free plan · Developer tools · Developers

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Open-source API client that keeps collections as local files synced through Git, for testing REST and WebSocket APIs offline.

Free plan · Developer tools · Developers

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A self-hosted wiki for engineering teams where pages embed live Prometheus and SQL charts and edits are reviewed like pull requests.

Since 2026

Free · Developer tools · Developers

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Runs fast-booting microVM sandboxes, throwaway Postgres databases and app deploys for teams building AI agents.

Free plan · Developer tools · Developers

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Uptime checks for sites, APIs, databases and queues you run on your own server, with alerts and public status pages.

Free · Uptime and monitoring · Developers

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A self-hosted gateway that gives teams logged, single sign-on access to SSH, databases, Kubernetes and remote desktops.

Since 2026

Free · Security and passwords · Developers

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An offline desktop app for designing, testing and documenting APIs as Markdown files kept in your Git repo.

Since 2025

Developer tools · Developers

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Headless CMS that stores structured content once and serves it to sites and apps through REST and GraphQL.

Free plan · Website builders · Agencies

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A Mac app for browsing Postgres databases that turns plain-English questions into SQL and checks the SQL before you run it.

Since 2026

Free · Developer tools · Developers

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Database client that writes SQL from plain-language questions and builds charts, for developers and analysts.

Developer tools · Developers

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Lightweight code editor written in assembly, with a terminal, Git and views of your Claude Code or Codex sessions.

Free · Developer tools · Developers

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A desktop app for sending and testing REST, GraphQL, gRPC and WebSocket requests, stored locally and synced through Git.

Since 2025

Subscription · Developer tools · Developers

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A self-hostable agent that watches Postgres and MySQL databases, suggests indexes and fixes slow queries, and builds BI dashboards.

Since 2026

Free plan · Developer tools · Developers

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Proxy that sits in front of PostgreSQL to pool connections, spread reads across replicas and shard data.

Developer tools · Developers

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Review schema changes, approve data fixes and control who can query production databases across 20+ engines.

Subscription · Developer tools · Developers

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Hosted git and Mercurial repos, CI builds, bug trackers and mailing lists for software projects, with no tracking.

Subscription · Developer tools · Developers

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Visual editor for database schemas that writes SQL migrations and keeps a history of schema changes.

Developer tools · Developers