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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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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Test management for QA teams that tracks manual test cases, automated runs and exploratory sessions in one place.

Since 2022

Free trial · Projects and tasks · Developers

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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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Stores, resizes, converts and serves images and video from your own bucket, as a Cloudinary replacement.

Free plan · Design and images · Developers

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Self-hosted pastebin where every code snippet is a Git repo, for developers and teams who want their own Gist.

Free · Developer tools · Developers

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Translates software interfaces with AI, syncs translation files through Git and lets teammates review wording.

Since 2024

Free trial · Developer tools · Software companies

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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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Builds, tests and deploys code on Windows, Linux and macOS machines, hosted or on your own server.

Free plan · Developer tools · Developers

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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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Runs CI jobs from GitHub and GitLab on hosted machines in the EU, billing only for the CPU and memory each job actually uses.

Free plan · Developer tools · Developers

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Hosted service that receives, logs and retries webhooks, with a CLI for local testing and a typed SDK.

Since 2024

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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Runs Terraform and OpenTofu plans on every pull request, checking policy and approvals before changes are applied.

Free plan · Developer tools · Developers

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Secrets manager that lets dev teams and AI agents store, sync and deploy app keys and env variables across environments.

Security and passwords · Developers

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A localization platform that keeps product wording consistent across languages using glossaries, translation memory and an AI translator.

Developer tools · Developers

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Tracks test coverage over time for your repos and flags untested code, free for open source projects.

Free plan · Developer tools · Developers

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Replaces Git submodules by syncing folders in one repository with other repositories on the server side.

Since 2022

Developer tools · Developers

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Writes pull request descriptions and team change summaries from your code diffs in GitHub and GitLab.

Free plan · Developer tools · 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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Share iOS, Android and Windows test builds with testers and teammates, manage environments and collect early feedback.

Subscription · Developer tools · Agencies

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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 simple translation tool for app, site and game text, with AI translation, team roles and Git and Figma syncing.

Since 2025

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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Independent hosted git service with merge requests, CI runners, a container registry and AI code review for dev teams.

Since 2026

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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Open-source issue and sprint tracker you host yourself, built as a Jira replacement with test cases and time logs.

Projects and tasks · 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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Browser tool for software teams to resolve git merge conflicts, run a merge queue and manage CODEOWNERS rules.

Since 2026

Free plan · Developer tools · Developers

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Connect a Git repo and get automatic checks for code issues, duplication and security problems on every commit.

Free plan · Developer tools · Developers

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Schedules and monitors backups of your servers, databases, cloud storage and SaaS tools into storage you choose.

Developer tools · Agencies

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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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Reviews each pull request with AI using an index of your codebase and posts findings ranked by severity.

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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Shows automated test results in one dashboard and keeps manual test cases as files in GitHub.

Free trial · Developer tools · 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