No moat. Still in business.

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Point your website's HTML form at this service to store submissions, filter spam and send them to email or other apps.

Since 2014

Free plan · Forms and surveys · Agencies

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Shrinks JPG, PNG, WebP and other images through a web tool, API or CMS plugins so websites load faster.

Since 2013

Free plan · Design and images · Agencies

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Runs automated tests against your APIs and websites after each deploy and on a schedule, with alerts on failure.

Since 2016

Uptime and monitoring · Developers

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Runs Claude Code and Codex jobs in parallel inside isolated containers, locally or on cloud runners, with memory shared across them.

Since 2018

Free plan · Developer tools · Developers

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Free WordPress plugin that scans a site and lists which pages and templates use each block, for tidying up old plugins.

Free · Website builders · Agencies

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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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Open-source shared editor and headless CMS for writing technical docs, dev blogs and knowledge bases, with Git sync.

Notes and knowledge · Developers

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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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Website traffic stats you host yourself as one binary, with no cookies and no stored IP addresses.

Free · Website analytics

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Mac app that runs your own AI prompts on selected text, screenshots or voice from any app by keyboard shortcut.

Since 2023

One-off payment · Focus and productivity · Individuals and families

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An SMTP relay and email API for sending transactional and marketing mail from apps, with searchable delivery logs.

Free plan · Transactional email · Developers

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Sends app and site emails such as receipts and password resets through EU-only servers, with an API, SMTP and SDKs.

Free plan · Email marketing · Developers

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Generates searchable API docs from C++ code and Markdown pages, with optional hosting, for C++ teams.

Since 2021

Developer tools · Developers

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Deploys each labelled GitHub pull request as a live preview environment on your own Lightsail or Hetzner servers.

Since 2020

Developer tools · Developers

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A form backend that collects submissions from any HTML form and sends them to email, Slack or Zapier, for static site builders.

Since 2021

Free plan · Forms and surveys · Freelancers

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Cloud service for deploying, updating and monitoring fleets of Linux IoT devices using containers.

Since 2020

Free plan · Developer tools · Developers

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A service that finds and quarantines flaky tests, skips unneeded CI jobs and runs a merge queue for software teams on GitHub.

Since 2021

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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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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An online place to translate software strings with your team, AI or hired translators, connected through an API and plugins.

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

Since 2024

Developer tools · Developers

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An API and plugin that flags throwaway email domains at signup so fake accounts never get in.

Free plan · Security and passwords · Developers

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Gives local dev servers a stable public URL for testing webhooks and OAuth or sharing previews, with flat seat pricing.

Since 2023

Free plan · Developer tools · Developers

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A free WordPress plugin that removes unused default features and content to tidy and speed up a site.

Free · Website builders · 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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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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Self-hosted platform for deploying web apps, static sites, databases and cron jobs from GitHub or GitLab.

Free · 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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A WordPress plugin that takes daily screenshots of chosen pages and flags visual changes after core or plugin updates.

Free plan · Uptime and monitoring · Agencies

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Keeps a team's API keys and environment variables encrypted in one place and syncs them to projects with a CLI and GitHub.

Security and passwords · 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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Desktop app that keeps all your SSH, container and VM connections in one place, with file browsing and terminal launch.

Since 2024

Developer tools · Developers

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A light Mac app that runs Docker containers, Kubernetes and Linux machines as a Docker Desktop replacement.

Since 2023

Developer tools · Developers

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WordPress plugin for creating custom fields, post types and front-end forms to build data-driven sites.

Free plan · Website builders · Agencies

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Free WordPress plugin that stores your media files in Google Cloud Storage and delivers them from there, not from your web host.

Free · Website builders · Agencies

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Runs coding agents in managed cloud machines for code review, bug fixes and background tasks, set up in YAML.

Since 2024

Developer tools · Developers

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A keyboard-driven Mac and Linux app for reviewing GitHub pull requests, with diffs, checks and threads loaded from a local cache.

Developer tools · Developers

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Platform for AI teams to trace, simulate and evaluate their LLM agents and keep track of model spend.

Uptime and monitoring · Developers

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Edit, upload and delete WordPress theme and plugin files from the admin area, with per user file permissions.

Website builders · Agencies

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An editing dashboard for Markdown and MDX kept in your GitHub repo, so clients can update static sites without Git.

Since 2022

Free plan · Website builders · Agencies

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Interactive code notebooks for Elixir teams to document work, explore data, and turn notebooks into small apps.

Free · 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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Deploys web3 app frontends from GitHub to decentralized hosting, with DNS monitoring and protection against frontend attacks.

Free plan · Website builders · Developers

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Hosted backend that takes in webhooks from Stripe, Shopify and others, stores them and runs your code with queues, cron and retries.

Since 2024

Free plan · Developer tools · Developers

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Tool for running a home server that installs and updates hundreds of self-hosted apps from a dashboard.

Free · Developer tools · Individuals and families

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A WordPress plugin that switches off unused scripts and styles per page, trims WooCommerce load and adds page caching.

Free · Developer tools · Online sellers