No moat. Still in business.

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A server you run yourself that resizes and converts images on the fly from URL options, for web teams.

Since 2019

Free · Developer tools · Developers

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Builds architecture diagrams and system maps from prompts, code, cloud setups or docs, aimed at engineering teams.

Since 2021

Free plan · Design and images · Developers

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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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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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A free knowledge base you run on your own server to publish help articles sorted into nested categories.

Free · Customer support

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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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API with point-in-time US company financials, earnings and ETF holdings from SEC filings, for backtests and investing apps.

Since 2026

Free plan · Data and spreadsheets · Developers

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Task tracker for freelancers and small coding teams with epics, boards, release planning and time tracking on iPhone, Android and Mac.

Since 2026

Free · Projects and tasks · Freelancers

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Keeps pull request discussions in sync across GitHub, Slack and VS Code so dev teams and AI agents review code faster.

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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Continuous integration and delivery service that runs builds and tests for software teams, billed by usage.

Pay as you go · Developer tools · Developers

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AI agent that writes code inside VS Code, JetBrains, the terminal or browser, open source, with hundreds of models at no markup.

Free plan · Developer tools · Developers

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A snippet library for developers and teams to save, label and share code, with plugins for editors, browsers and Slack.

Developer tools · Developers

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Runs scheduled and batch container jobs on any cloud or your own servers, with an API, logs and cost controls.

Free plan · Developer tools · Developers

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WebSocket server for app developers that keeps realtime messages ordered and recovers them after dropped connections.

Free · Developer tools · Developers

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Checks code written by AI coding agents for security flaws and team standards, in pull requests and inside the editor.

Free plan · Security and passwords · Developers

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A hosted container image registry built on Harbor for teams that need to store, secure and share images.

Free trial · Developer tools · Developers

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Hosted service that runs your MCP servers behind a single URL, holds credentials and logs each tool call per client.

Since 2023

Free plan · Developer tools · Developers

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Turns your own Linux servers into a Docker cluster so you can deploy Compose apps to production with one command.

Developer tools · Developers

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A light S3-compatible storage server you run yourself, with a web dashboard, replication and encryption built in.

Since 2026

Free · Developer tools · Developers

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A federated code host with stacked pull request review and CI. You can use the hosted service or run it yourself.

Since 2025

Developer tools · Developers

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Self-hosted platform that deploys apps and databases from Git onto your own servers, with HTTPS, logs, backups and monitoring.

Since 2025

Developer tools · Developers

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Records program execution so developers can replay and step back through bugs in the IDE, CI and code review.

Since 2025

Free plan · Developer tools · Developers

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A self-hosted web workspace for ClickHouse with a SQL editor, dashboards and cluster monitoring, for data teams.

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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Translates the text in your app, docs and website into many languages, with a CLI, API and review tools.

Since 2025

Developer tools · Developers

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Shows where and how React components are used across your repos, so design system teams can track adoption.

Since 2025

Developer tools · Developers

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Package registry for teams to store npm, Maven, PyPI, NuGet and Docker packages, used as a hosted service or installed on your servers.

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 small platform you install on your own server to deploy apps with git push, with databases and storage included.

Since 2026

Free · Developer tools · Developers

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An AI agent for on-call engineers that triages alerts, finds the root cause and proposes code fixes with reproduction tests.

Since 2026

Uptime and monitoring · Developers

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Hosts Docker apps, Postgres databases and file storage on European servers, deploying straight from GitHub.

Since 2025

Subscription · Developer tools · Developers

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Desktop app for developers to inspect, debug and replay Kafka topics, schemas and consumer groups.

Since 2026

Free plan · Developer tools · Developers

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Generates a typed Laravel and Vue monorepo with auth, Docker and CI from a schema you define, for developers starting a SaaS.

Since 2025

Free plan · Developer tools · Developers

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Shows engineers the cloud cost of Terraform and other infrastructure code changes in their editor or coding agent.

Since 2026

Free plan · Developer tools · Developers

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Open-source monitoring you host yourself for websites, servers, containers and SSL, with status pages and alerts.

Free · Uptime and monitoring · Developers

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A free status page and uptime monitor you run in Docker, with incident updates, maintenance plans and subscriber notices.

Free · Uptime and monitoring · Developers

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Alerts you when a cron job, worker or container stops checking in, and attaches its last log lines to the alert.

Since 2026

Free plan · Uptime and monitoring · Developers

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A backend for map and location apps: import spatial files into PostGIS and get SQL, realtime and OGC APIs, hosted or self-run.

Since 2025

Developer tools · Developers

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Deploys and runs code written by AI coding agents, including apps, APIs, databases and agents, from inside your editor.

Since 2025

Free plan · Developer tools · Developers

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A Docker image you run yourself that solves DataDome and Akamai bot challenges for scraping workers, at a flat fee.

Developer tools · Developers

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A desktop workspace and agent-written wiki for people using Claude Code or Codex, keeping tasks, docs and decisions in one place.

Since 2025

Free plan · Developer tools · Developers

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A VS Code extension that has your AI agent write step-by-step tours of a codebase to help new engineers get up to speed.

Since 2025

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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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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Hosting that runs your apps from a git push or an AI agent request, with managed Postgres, Redis, domains and logs.

Since 2026

Free trial · Developer tools · Developers

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Feature flags and remote settings service you host yourself, letting teams change app behaviour without shipping an update.

Free · Developer tools · Developers

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Lets security teams check IP addresses against honeypot data and pull attacker feeds into their SIEM or AI assistant.

Since 2026

Free plan · Security and passwords · Developers