No moat. Still in business.

0

Desktop data analysis app where you ask about your data in plain English and get Python code, charts and notebooks run on your computer.

Since 2017

Data and spreadsheets

0

Open-source backend for app builders with auth, databases, storage, functions and hosting, run in the cloud or on your own servers.

Since 2021

Developer tools · Developers

0

Runs browser and API checks against your app from many regions and alerts you when they fail, set up as code.

Since 2021

Free plan · Uptime and monitoring · Developers

0

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

Free plan · Website analytics

0

Fixes the mixed content and insecure content warnings a WordPress site shows after it moves to HTTPS.

Website builders

0

Gets and renews free Let's Encrypt SSL certificates on cPanel shared hosting without command line work.

Free plan · Security and passwords

0

Track your own hours by activity and see heatmaps, streaks, goals and a weekly summary of where your time went.

Since 2025

Free plan · Time tracking · Individuals and families

0

Sends alerts to on-call staff, handles their rotas and runs status pages so tech teams can respond to outages quickly.

Since 2020

Free trial · Uptime and monitoring · Developers

0

Sets up and manages your web servers and handles site deployments, with extra help for Laravel apps.

Subscription · Developer tools · Agencies

0

Hosted app backend with database, user login and generated REST and GraphQL APIs, so developers skip running servers.

Developer tools · Developers

0

Monitors websites, servers, cron jobs, DNS records and SSL certificates, with alerts and public status pages.

Since 2024

Free plan · Uptime and monitoring · Developers

0

Hosted status pages with built-in uptime checks, so you can keep customers informed during outages and cut support tickets.

Free plan · Uptime and monitoring · Software companies

0

Monitors website uptime from several countries, tries automatic recovery, and calls or texts you if the problem stays.

Subscription · Uptime and monitoring

0

Gathers status updates from thousands of cloud services you depend on, warns you about outages and shows them on one page.

Uptime and monitoring · Software companies

0

Checks your websites, SSL certificates, DNS and domains every 30 seconds and alerts you when something breaks or expires.

Free plan · Uptime and monitoring · Agencies

0

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

Free · Uptime and monitoring · Software companies

0

Alerts you when a cron job misses its ping or a site, certificate or domain has a problem, with status pages included.

Free plan · Uptime and monitoring · Agencies

0

Records user sessions and catches front end errors in web and mobile apps so product and dev teams can fix bugs faster.

Since 2022

Free trial · Website analytics · Developers

0

Website analytics without cookies, with heatmaps and replays, that also shows which AI crawlers and assistants visit.

Since 2024

Website analytics

0

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

0

Checks your websites, SSL, ports and cron jobs, confirms outages from other regions and runs status pages on your domain.

Since 2024

Free plan · Uptime and monitoring · Online sellers

0

Checks websites, APIs and cron jobs every 30 seconds and confirms an outage before alerting your team.

Subscription · Uptime and monitoring · Developers

0

Drop-in Redis replacement that aims to halve memory use, with a trial mode to test savings on your own data.

Free trial · Developer tools · Developers

0

Shows who is on your website right now, where they came from and what they click, with heatmaps.

Free trial · Website analytics

0

Monitors websites and Linux servers, sends alerts by email, SMS or call, and hosts branded status pages on your domain.

Free plan · Uptime and monitoring · Developers

0

Tells developers when scheduled jobs, agents, websites or APIs fail or run late, and hosts status pages for customers.

Free plan · Uptime and monitoring · Developers

0

Spreadsheet that links to databases and files and lets AI write the formulas, Python and charts for you.

Since 2023

Data and spreadsheets

0

A PHP web analytics script you host yourself, with goals, heatmaps and session replays, paid for once.

Since 2025

One-off payment · Website analytics

0

Visitor stats inside WordPress, stored on your own server, with heatmaps and WooCommerce sales by source.

Free plan · Website analytics

0

Checks your websites, APIs and ports and messages you on WhatsApp after repeated failures, with status pages and SSL checks.

Free plan · Uptime and monitoring · Developers

0

Runs incidents from alert to postmortem for engineering teams, with on-call rotas, escalations and status pages included.

Free plan · Uptime and monitoring · Developers

0

WordPress plugin to A/B test pages, watch session recordings and heatmaps, and track WooCommerce revenue by variant.

Free trial · Website analytics · Online sellers

0

Records every AI agent decision in a signed, tamper-evident log so teams can show regulators what their AI did under the EU AI Act.

Since 2026

Free plan · Developer tools · Developers

0

Open source uptime checks, alerts and public status pages that you or an AI agent can manage, with no charge per monitor.

Free plan · Uptime and monitoring · Developers

0

Uptime checks for sites, APIs, databases and queues you run on your own server, with alerts and public status pages.

Free · Uptime and monitoring · Developers

0

Open-source monitoring you host yourself for websites, servers, containers and SSL, with status pages and alerts.

Free · Uptime and monitoring · Developers

0

A free status page and uptime monitor you run in Docker, with incident updates, maintenance plans and subscriber notices.

Free · Uptime and monitoring · Developers

0

Checks websites and APIs from several regions, alerts whoever is on call and runs a public status page.

Free plan · Uptime and monitoring · Agencies

0

Spots DDoS attacks on your servers within a second and triggers firewall, BGP or scrubbing responses.

Since 2026

Subscription · Uptime and monitoring · Developers

0

Watches websites and APIs, alerts you on several channels, tracks incidents and hosts status pages, all from an independent EU company.

Since 2025

Free plan · Uptime and monitoring · Agencies

0

Alerts you when AI agent runs, cron jobs or CI pipelines fail, stall or never start, with status pages.

Free plan · Uptime and monitoring · Developers

0

Product analytics for web and mobile apps with session replay, funnels, heatmaps and crash tracking from a small SDK.

Since 2026

Free plan · Website analytics · Developers

0

Catches missed cron runs, stalled background jobs and site downtime through heartbeat pings, with public status pages.

Free plan · Uptime and monitoring · Developers

0

Records visitor sessions, heatmaps and live traffic on a WordPress site, keeping the data in your own database.

Free plan · Website analytics

0

Adds interactive maps to WordPress with popups, category filters, clustering, store locators and 3D views.

Free plan · Website builders

0

Real-time website analytics with per-visitor logs, heatmaps, bot filtering and uptime alerts, anonymised by default.

Website analytics

0

Point any domain at any URL with automatic HTTPS, path rules and hit analytics, no server to run.

Free plan · Website builders

0

Pools GPUs and CPUs from many cloud providers and your own servers so developers can run large data jobs in one place.

Since 2026

Developer tools · Developers