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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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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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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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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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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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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Build and debug CI pipelines as a node graph instead of YAML, then run them on your own machines or in the cloud.

Since 2024

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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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 developers and coding agents run local code against a real Kubernetes staging cluster, plus CI runs and PR previews.

Since 2022

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

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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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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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Checks JavaScript and TypeScript code for runtime bugs and quality problems that ordinary linters miss.

Free plan · Developer tools · 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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Logs errors from .NET and JavaScript apps, checks site uptime and scheduled jobs, and notifies your team in chat or email.

Free trial · Uptime and monitoring · Developers

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Feature flags for gradual rollouts that open a pull request to remove each flag from your code once it is done.

Free plan · Developer tools · 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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Runs code benchmarks on dedicated bare metal machines and flags speed regressions in pull requests before merge.

Free plan · Developer tools · Developers

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Adds AI translations to your app's language files on each pull request, so the team can review and edit them before merge.

Free trial · Developer tools · Developers

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Captures UI screenshots on each build and flags visual changes so dev teams can review them before release.

Since 2024

Free plan · Developer tools · Developers

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A web translation editor for software teams that syncs app strings, auto-translates and hosts translation files on a CDN.

Free trial · 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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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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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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Runs performance benchmarks in your CI and flags slowdowns on each pull request, for software teams.

Since 2023

Free plan · Developer tools · Developers

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Pull request stats, DORA dashboards, daily summaries and custom alerts built from a team's GitHub activity.

Subscription · Developer tools · Developers

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Developers can mock or proxy HTTP endpoints at shareable public URLs to test against APIs that are not finished yet.

Free · Developer tools · Developers

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AI agents that test your web or mobile app like a user on each pull request and report what broke.

Since 2024

Free plan · Developer tools · Developers

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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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Sorts, filters and archives your GitHub notifications so developers can keep track of issues and pull requests outside email.

Free plan · Developer tools · Developers

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Runs coding agents inside your team's own workflows, turning tickets into pull requests you review, on their cloud or yours.

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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Stores the reasoning from AI coding chats with each git commit and posts it to pull requests for team review.

Since 2026

Free plan · Developer tools · Developers