No moat. Still in business.

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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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Holds copies of your software's source code and SaaS setup in escrow so customers can recover them if the vendor fails.

Since 2017

Subscription · Security and passwords · Software companies

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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 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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Shows B2B sellers which companies visit their website and what interests them, so sales can follow up early.

Free trial · CRM and sales · Agencies

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SEO agent for founders that reads your Search Console data, plans topic clusters and drafts articles straight into your CMS.

Since 2024

Free plan · SEO

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Records visitor sessions on your site and uses AI to point out errors, rage clicks and drop-offs, alongside heatmaps.

Free plan · Website analytics

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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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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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Lets online sellers accept 200+ local payment methods around the world through one account, API or shop plugin.

Pay as you go · Payments and checkout · Online sellers

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Checks comments before they post and tells commenters how to fix rude or off-topic ones, for sites running discussions.

Communities and memberships · Creators and writers

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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 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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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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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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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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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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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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Connects to your SaaS tools to handle staff access requests, reviews and removals, with an agent doing the routine work.

Since 2024

Security and passwords · Software companies

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

Free · Developer tools · 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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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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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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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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Website analytics that shows which traffic sources bring paying customers, for founders and small online businesses.

Subscription · Website analytics · Online sellers

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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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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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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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APIs and a WordPress plugin that check IP location and reputation, emails and phone numbers to filter out fake form signups.

Free plan · Security and passwords · 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

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Collects TODO comments from your Git repos so a team can browse and track pending code work.

Free plan · Projects and tasks · 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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Run surveys in email, websites and apps, then group the answers into themes so product teams can act on customer feedback.

Free plan · Forms and surveys · Software companies

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Billing software for hosting firms that sells domains, hosting and SSL, sets up services and sends the invoices.

Subscription · Invoicing and billing · Software companies

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Shows live sales, sign-ups, reviews and visitor counts as small notifications on your site to build buyer trust.

Subscription · Marketing and social · Online sellers

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Security teams build automated response workflows and agents, and track incidents as cases, self-hosted or managed.

Security and passwords · Software companies

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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