No moat. Still in business.

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An AI agent phones and texts fresh inbound leads within seconds, then passes qualified ones to your sales reps.

Since 2017

Subscription · CRM and sales · Trades and home services

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Sends email for hosting companies and multi-tenant apps, and stops spam from compromised customer accounts before it hurts delivery.

Transactional email · Developers

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Hosted STUN and TURN servers across 12 regions so WebRTC calls and data get through firewalls and strict networks.

Free plan · Developer tools · Developers

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Free proof-of-work CAPTCHA that runs silently without tracking users and works as a drop-in for reCAPTCHA and hCaptcha APIs.

Free · Security and passwords · Developers

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Free desktop app that backs up your encrypted files onto friends' computers while you store theirs in return.

Since 2021

Free · Security and passwords · Individuals and families

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A feedback widget that grabs screenshots, DOM and console logs from users so your coding agent can fix the issue.

Since 2026

Free plan · Customer support · Developers

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A desktop app for opening, editing, filtering and querying large CSV files in a grid, for anyone who handles CSV data.

Free plan · Data and spreadsheets

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Error tracking and product analytics that works with your current Sentry SDK and lets coding agents read issues to fix them.

Free plan · Uptime and monitoring · Developers

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Makes styled QR codes with your logo from a text description and checks they scan, for print, packaging and web.

Since 2026

Pay as you go · Marketing and social

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A self-hosted web logbook where ham radio operators record contacts, track awards and map their QSOs.

Free · Something else · Individuals and families

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API that finds the right HS or HTS customs code for a product in 35 countries, for shipping and trade software.

Subscription · Developer tools · Online sellers

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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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Creates secured REST APIs from existing databases so apps and AI tools can read data without direct database access.

Developer tools · Developers

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Schedules timed tasks, watches that your jobs and sites stay up, and checks email addresses, for apps on serverless hosts and AI agents.

Free plan · Uptime and monitoring · Developers

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Sends app emails through an API or SMTP relay, plus simple campaigns, hosted in Europe for developers and software teams.

Since 2025

Free plan · Email marketing · Developers

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Frontend teams can spin up hosted fake REST endpoints, import OpenAPI or Postman files, and fill responses with fake data.

Free plan · Developer tools · Developers

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An API that serves current, forecast and historical weather for any location, for apps and weather-sensitive firms.

Since 2023

Free plan · Data and spreadsheets · Developers

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An API and CLI that runs a browser agent to fill forms, scrape behind logins and do web tasks for you.

Since 2025

Developer tools · Developers

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An email sending API and SMTP service for apps sending large volumes of receipts, resets and alerts, with a vetted shared network.

Since 2026

Subscription · Transactional email · Developers

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A self-hosted web workspace for ClickHouse with a SQL editor, dashboards and cluster monitoring, for data teams.

Free plan · Developer tools · Developers

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Schedule posts to ten social networks from a calendar, a REST call or an AI assistant, priced per connected account.

Free plan · Marketing and social · Agencies

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Gives each AI agent a real email address, and soon a phone number, so it can read mail, reply and use login codes.

Free plan · Developer tools · Developers

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A single-binary self-service tool for teams to define ops workflows, require approvals and run them on remote machines.

Free · Developer tools · Developers

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Shared memory store that saves facts from one AI tool and recalls them in others like Claude, ChatGPT and Cursor.

Since 2026

Free · Developer tools · Developers

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An observability backend on ClickHouse that takes logs, metrics, traces and profiles and lets teams query them in Grafana.

Free plan · Uptime and monitoring · Developers

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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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A hosted graph backend that AI coding agents can query with typed JSON instead of SQL, reachable over MCP.

Since 2026

Free plan · Developer tools · Developers

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Crawls a website and gives AI agents an MCP endpoint, llms.txt and cited answers, plus stats on agent visits.

Free plan · SEO

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Logs what you work on automatically for remote workers and shares private summaries with the team, no timers needed.

Time tracking

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A WordPress plugin that lets fire brigades and rescue groups publish incident reports with times, vehicles and type.

Free · Website builders

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Upload large files and share them by link without an account, with paid plans for permanent storage and bigger files.

Free plan · Something else

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Lets your coding agent spin up a sandboxed Linux box with a public HTTPS address and ship your app there, no account needed.

Free plan · Developer tools · Individuals and families

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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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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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Generate original typefaces from a text prompt or sample image and download them as font files, or use the API.

Since 2026

Design and images · Creators and writers

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API that searches nine free stock photo sites by meaning with a single key; all images can be used without crediting anyone.

Free plan · Design and images · Creators and writers

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Move files, text and links between your phone and computers through a cloud app that runs on six platforms.

Free plan · Something else · Individuals and families

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Run FFmpeg commands in the cloud through an API to convert, trim, caption and watermark video without installing anything.

Free plan · Video and audio · Developers

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Watches the status pages of thousands of outside services and alerts you when the ones you depend on go down.

Since 2024

Free plan · Uptime and monitoring · Developers

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Bookmark manager that saves links, notes, images and PDFs, tags them with AI and makes them searchable.

Notes and knowledge · Individuals and families

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Puts a folder of static files online with one command or through an AI agent, with built-in form collection.

Website builders · Individuals and families

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Syncs an independent bookshop's in-store stock to its online shop, filling in covers and book details automatically

Since 2025

Online shops · Shops and retail

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A free status page you host yourself to tell customers about outages, incidents and planned maintenance.

Free · Uptime and monitoring · Software companies

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Collects automated test results from many frameworks and pipelines in one place, with manual checks and release sign-off.

Free plan · Developer tools · Developers

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Free open source desktop app for drawing 2D frame by frame animations in raster or vector, for animators.

Free · Design and images · Creators and writers

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Design dashboards for e-ink screens around your home and keep them updated, run on your own server or Home Assistant.

Free · Home and car · Individuals and families

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A REST API that gives current, forecast and historical weather for any location, plus severe weather alerts.

Free plan · Developer tools · Developers

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Cookie-free web and product analytics for startup founders, with funnels, errors and an AI helper that shows its SQL.

Free plan · Website analytics · Developers