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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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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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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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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An AI assistant that picks up missed calls, filters spam and phones businesses for you to book or wait on hold.

Since 2024

Subscription · Focus and productivity · Individuals and families

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Lets developers send templated email from browser or app code through their own mail provider, without writing a server.

Free plan · Transactional email · Developers

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Publishes static sites by drag and drop or through an AI agent, with custom domains, HTTPS and one-click version restore.

Free plan · Website builders · Individuals and families

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Task tracker for product teams that adds a public board where users vote on ideas and follow the roadmap and changelog.

Free plan · Projects and tasks · Software companies

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Publish product changelogs and public roadmaps from a web editor, or post updates from your build pipeline by CLI or API.

Free plan · Marketing and social · Software companies

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Preview and debug ZPL thermal printer labels in the browser, make barcodes and render labels through an API.

Free plan · Inventory and stock · Shops and retail

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Open source support chat and inbox for apps built with React or Next.js, where an AI agent handles routine questions and staff step in.

Customer support · 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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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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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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Hosted service that runs your MCP servers behind a single URL, holds credentials and logs each tool call per client.

Since 2023

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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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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Sends messages from your scripts, servers or webhooks straight to the Pocket Alert app on your iPhone or Android phone.

Since 2024

Free plan · Uptime and monitoring · 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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Deploys Docker Compose apps from GitHub to your own Linux servers on each push, with domains, logs and backups.

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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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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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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Sits in front of your server to receive webhooks from Stripe, Shopify and others, logging each one so missed events can be resent.

Free plan · Developer tools · Developers

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Hosted service that runs multi-step AI pipelines calling your own backend and streams progress to users.

Since 2026

Free plan · Developer tools · Developers

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Persistent cloud virtual machines with up to 60 vCPUs and optional GPUs, which coding agents drive via CLI or MCP, charged per minute.

Since 2026

Pay as you go · Developer tools · Developers

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Catches visual changes in web UIs by comparing screenshots in pull requests, with an API that coding agents can read.

Since 2025

Free plan · Developer tools · Developers

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Pay per minute GPU rental for AI work, paired with a Linux environment that holds onto your models, files and tools between sessions.

Since 2026

Pay as you go · Developer tools · Creators and writers

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An API that scans documents for text hidden from readers but visible to AI models, and returns findings and clean text.

Since 2026

Free plan · Security and passwords · Developers

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An API that returns a company logo for any domain from a CDN, with a React component and domain locked keys.

Free plan · Design and images · Developers

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Git hosting and code review with stacked pull requests, usable alone or kept in sync with GitHub.

Since 2026

Developer tools · Developers

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Checks VS Code and Open VSX extensions for risky code and permissions and gives developers a security report.

Since 2025

Security and passwords · Developers

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Runs API, interface and security checks on each pull request and reports genuine failures, so engineering teams catch bugs before merge.

Since 2025

Developer tools · Developers

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Hosts agents, small APIs and internal tools with sandboxes, secrets, environments and many app connections, run from your editor.

Since 2026

Free plan · Developer tools · Developers

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Open source graph database that records the shape of your data on every write, so AI agents can query it accurately.

Since 2025

Free plan · Developer tools · Developers

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Checks each AI agent tool call against policy and asks a person to approve the exact payload before risky actions.

Since 2026

Security and passwords · Developers

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One OpenAI-compatible API key to call 120 AI models, with a per-request cost receipt, for developers.

Since 2026

Free plan · 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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Runs fast-booting microVM sandboxes, throwaway Postgres databases and app deploys for teams building AI agents.

Free plan · Developer tools · Developers

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Lets your AI assistant read and edit Ghost, WordPress, Shopify or Webflow content, with previews and undo for each publish.

Since 2026

Free plan · Website builders · Agencies

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Screenshots UI changes in pull requests and uses an AI judge to separate intended changes from regressions.

Free plan · Developer tools · Developers

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Receives webhooks from providers like Stripe, then verifies, stores and forwards them to your services with retries.

Free plan · Developer tools · Developers

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Creates realistic linked test data for SQL and MongoDB databases from a plain English description.

Since 2026

Free plan · Developer tools · Developers

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Lets agents model the cost, latency, error rates and resilience of infrastructure changes on AWS, GCP, Azure and others before deploying.

Since 2026

Developer tools · Developers