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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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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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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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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Records user sessions and catches front end errors in web and mobile apps so product and dev teams can fix bugs faster.

Since 2022

Free trial · Website analytics · Developers

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One API and an in-app inbox component that let software teams send notifications by email, SMS, push, chat and in-app.

Transactional email · Developers

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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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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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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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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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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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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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Sends alerts to on-call staff, handles their rotas and runs status pages so tech teams can respond to outages quickly.

Since 2020

Free trial · Uptime and monitoring · 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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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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Sends engineering teams a daily summary of AWS and Azure spending changes by Slack, Teams or email.

Since 2018

Subscription · Uptime and monitoring · Developers

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Gives static website forms a hosted endpoint that stores submissions, filters spam and sends alerts to email, Slack or Discord.

Forms and surveys · 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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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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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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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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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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A Mac app for comparing Git commits and branches, tracing file history and resolving merge conflicts.

Since 2023

One-off payment · Developer tools · Developers

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Mac editor where you write what to build, agents comment and explore options, then build the chosen one as a pull request.

Since 2024

Developer tools · Developers

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Managed and serverless databases across 19 engines such as Postgres, MySQL and Redis, with data branching and flat monthly prices.

Free plan · Developer tools · Developers

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A Mac database client for querying and editing data, with SQL and Python notebooks and an AI assistant that writes queries.

Since 2023

Free plan · Developer tools · Developers

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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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Self-hosted scheduler that runs, chains and logs scripts, SQL and Ansible jobs across many servers for sysadmins and MSPs.

Free plan · 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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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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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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Native Mac code editor for web and app developers, with Git, debugging, terminal and remote file publishing.

Free trial · Developer tools · Freelancers

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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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Send your own HTML form to a hosted endpoint that stores entries, holds back spam and forwards them to email or other tools.

Forms and surveys · Agencies

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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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Watches your SSL certificates and sends alerts well before they expire, with automatic host discovery.

Since 2022

Free plan · Uptime and monitoring · 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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A Mac app for Git that lets developers commit, browse history and script repository actions with GitHub and GitLab built in.

Developer tools · Developers

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Desktop database manager for browsing tables and writing SQL across Postgres, MySQL, SQLite, ClickHouse and more.

Since 2024

Free plan · Developer tools · Developers

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Self-hostable alternative to Vercel and Netlify for deploying web apps, with previews, environments and logs.

Free plan · Developer tools · Developers

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A GitHub app that runs AI agents in GitHub Actions to review pull requests, triage issues and fix failing CI.

Free plan · Developer tools · Developers