No moat. Still in business.

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Always-on profiling of CPU, GPU and memory in production so engineers can find slow code and cut server costs.

Since 2021

Free trial · Uptime and monitoring · Developers

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Builds iOS and Android apps straight from Figma designs, producing React Native code that designers can ship to app stores.

Since 2019

Free plan · Design and images · Agencies

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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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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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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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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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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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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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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 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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Audits your web pages for usability, copy, SEO and broken features, pinning each issue on screen with suggested fixes.

Since 2023

Free plan · Website builders

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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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Library of recorded iOS app screens, onboarding and paywalls that app teams and their AI agents can search.

Since 2018

Design and images · 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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AI agent that writes code inside VS Code, JetBrains, the terminal or browser, open source, with hundreds of models at no markup.

Free plan · Developer tools · Developers

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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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Lets SaaS teams record browser tests without code and run them in the cloud or CI before each release.

Free plan · Developer tools · Software companies

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Hosting for developers that deploys Dockerfiles or images as apps, workers, cron jobs and databases on a private network.

Since 2024

Free plan · 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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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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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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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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Outbound SMTP relay for servers and sites that filters spam and malware and handles sender reputation, billed per email.

Subscription · Transactional email · 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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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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Blocks scrapers, spam bots and fake signups before they reach your site, by plugin, API or a DNS change.

Free plan · Security and passwords · Online sellers

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An API that captures any web page as an image, PDF or markdown, with banner blocking and choice of country, for developers.

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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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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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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Hosted service that adds social network sign-in and single sign-on to websites and apps, with a REST API.

Free plan · Security and passwords · Developers

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Watches WordPress sites for vulnerable plugins and themes and blocks exploits with virtual patches until fixes land.

Free trial · Security and passwords · Agencies

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Shared canvas where your team and coding agents build clickable React prototypes, wireframes and slide decks.

Since 2026

Free plan · Design and images · Agencies

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Draw system or process diagrams that viewers click through one step at a time, then share or embed them on any site.

Since 2026

Free plan · Design and images · Developers

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A simple translation tool for app, site and game text, with AI translation, team roles and Git and Figma syncing.

Since 2025

Developer tools · Developers

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Writes and publishes SEO articles and gets backlinks and AI chatbot mentions for business websites, on a monthly plan.

Subscription · SEO

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Lets AI assistants and developers grab clean web page screenshots from 227 countries through MCP, a CLI or a REST API.

Free plan · Developer tools · Agencies

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Runs a team of coding agents like Claude Code and Codex in separate cloud sandboxes that you can manage together

Since 2025

Developer tools · Developers

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Gives AI coding agents and developers isolated full-stack environments on your own Kubernetes setup to test code against real services.

Since 2025

Free plan · Developer tools · Developers

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Rents short-lived cloud Macs with Xcode to AI coding agents so developers can build and ship iOS apps without owning a Mac.

Since 2026

Pay as you go · Developer tools · Developers

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An API and MCP server that lets AI agents send contracts and collect two-party signatures by email.

Since 2026

Free plan · Documents and e-signature · Developers

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A hosted wiki that Claude, ChatGPT, Cursor and other AI agents share through MCP, so people can see and edit what the agents know.

Free plan · Developer tools · Developers

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API that fetches Google results and answers from ChatGPT, Gemini and others as clean data, for SEO tracking.

Since 2025

Subscription · SEO · Agencies

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Web and product analytics similar to Mixpanel, open source, available as an EU hosted service or installed on your own server.

Subscription · Website analytics · Software companies

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Stores what your team's AI coding agents learn, such as fixes and product rules, so the next agent starts with it.

Since 2026

Free plan · Developer tools · Developers

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An AI support chat that answers customers from your own docs and shows founders what users ask about.

Since 2026

Free plan · Customer support · Online sellers

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Creates and checks llms.txt files so AI coding assistants can read your docs, and refreshes them when the site changes.

Since 2025

Free plan · SEO · Developers

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Hosts and streams video and media from the WordPress library, with overlays, lead forms and viewing stats.

Subscription · Video and audio · Online sellers