No moat. Still in business.

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Excel add-in for querying tables with SQL, scripting workbooks in C# and building custom Excel functions.

Since 2016

Free plan · Data and spreadsheets · Developers

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A fast shared wiki where teams keep documents, notes and project boards together.

Since 2016

Projects and tasks

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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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Watches web pages for changes and sends alerts or scraped data to Slack, Discord, Telegram or Google Sheets without code.

Since 2019

Free plan · Uptime and monitoring

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A company wiki where teams write, organise and search shared docs and policies, with search across linked tools.

Since 2020

Free plan · Notes and knowledge

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Adds AI answers, tooltips and a help widget to your app, drawn from your help docs, to cut support tickets.

Since 2024

Free trial · Customer support · Software companies

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WordPress plugin that sends site email through a proper SMTP provider and logs each message so you can see if it arrived.

Free · Transactional email

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Write product documentation and user manuals in Markdown and publish them as a website, PDF or eBook.

Free plan · Website builders · Software companies

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Send JSON events from your app with one request, then chart, query with SQL, set alerts and embed dashboards.

Since 2022

Free plan · Website analytics · Developers

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Gives your OpenClaw AI agent a phone line so it can call you with alerts and briefings when your rules trigger.

Since 2026

Subscription · Automation and integrations · Individuals and families

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A self-hosted forum with a shared library for clubs and communities who want discussions and know-how to stay findable.

Free · Communities and memberships

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Falco based Kubernetes security tool that spots attacks inside your own cluster, sends no telemetry and is paid for once.

Since 2026

One-off payment · Security and passwords · Developers

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A wiki for SOPs, manuals and FAQs that sits in Microsoft Teams and answers staff questions from your own pages.

Since 2020

Subscription · Notes and knowledge

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Watches your sites, certificates, DNS records and scheduled tasks around the clock and tells your team as soon as something fails.

Since 2024Updated 4 months ago

Subscription · Uptime and monitoring · Developers

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Shared space where teams write docs and move the same pages across boards to track project status.

Free plan · Projects and tasks

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Saves videos, podcasts, PDFs and articles, summarises them, and lets you search and chat across what you saved.

Since 2022

Free plan · Notes and knowledge · Individuals and families

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Hosted RabbitMQ and LavinMQ message queues that are monitored and maintained for you on the major clouds.

Developer tools · Developers

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Watches AI agents in production, groups recurring failures and alerts you so a coding agent can fix them.

Free plan · Uptime and monitoring · Developers

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

Since 2023

Data and spreadsheets

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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 cloud workspace for creating, running and sharing marimo Python and SQL notebooks for data work

Since 2024

Developer tools · Developers

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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

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Tracks domain renewals, SSL certificates and DNS records for many sites and alerts you before something lapses or breaks.

Since 2024

Subscription · Uptime and monitoring · Agencies

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A free markdown notes app you run on your own server, with wikilinks, a graph view, diagrams, math and an MCP link for AI tools.

Free · Notes and knowledge · Individuals and families

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Searches your company's Slack, Drive, GitHub and other tools by permission and answers questions with links to the source.

Notes and knowledge

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Free self-hosted wiki that lets a team organise its documentation into shelves, books and pages.

Since 2022

Free · Notes and knowledge

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A free knowledge base you run on your own server to publish help articles sorted into nested categories.

Free · Customer support

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Help desk for SaaS companies with a shared inbox, knowledge base, AI replies and an in-app support widget.

Since 2024

Free plan · Customer support · Software companies

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Tracks machine learning experiments, metrics and model versions for ML teams, with an API compatible with Weights and Biases.

Free trial · Developer tools · Developers

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Snap a photo of highlighted book passages and Raven turns them into tagged, searchable notes with summaries.

Since 2024

Notes and knowledge · Individuals and families

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A shared knowledge base for teams that flags stale docs and keeps company answers current for people and AI agents.

Since 2025

Free plan · Notes and knowledge

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Records each step of an AI agent's run so developers can spot slow calls, errors and token costs.

Since 2026

Free plan · Uptime and monitoring · Developers

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Watches web pages, news and social sites for topics you pick and alerts you with a summary when something changes.

Since 2025

Free plan · Uptime and monitoring · Individuals and families

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A web workspace where analysts write SQL over market prices, macro series and SEC filings, then chart the results without Python.

Since 2026

Subscription · Data and spreadsheets

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Tracks API traffic, errors and response times, logs requests and sends alerts, set up with a few lines of code.

Since 2025

Free trial · Uptime and monitoring · Developers

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Q&A site and knowledge base that teams can host themselves to collect answers to common questions.

Free · Customer support

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Keeps documentation in GitHub repos in step with the code and shares that context with teammates and AI coding agents.

Since 2026

Free plan · Developer tools · Developers

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Saves what you work out in AI chats as searchable documents that Claude, ChatGPT, Cursor and other MCP tools can read later.

Since 2026

Free plan · Notes and knowledge · Developers

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Watches MySQL, PHP-FPM, Varnish and NGINX servers in one dashboard with alerts, as a swap in replacement for NGINX Amplify.

Since 2026

Free plan · Uptime and monitoring · Developers

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A Slack assistant that learns your company policies and answers staff questions, and helps onboard new hires.

Since 2026

Notes and knowledge

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A WordPress helpdesk plugin with support tickets, a knowledge base, a chatbot and AI help drafting replies.

Free plan · Customer support

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A WordPress plugin that marks glossary terms in posts and shows their definitions in a hover tooltip.

One-off payment · Website builders · Creators and writers

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Website live chat and chatbot trained on your own content, also answering on WhatsApp, Instagram and Messenger.

Free plan · Customer support

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Collect links, screenshots, notes and files on a visual board, connect them with tags, and ask AI questions about them.

Since 2025

Free plan · Notes and knowledge · Individuals and families

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WordPress plugin for building a help center knowledge base, using AI to draft docs and answer visitor questions.

Free plan · Customer support · Software companies

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Build a chat agent from your own docs and FAQs, test it, then put it on your site or WhatsApp to answer customers.

Since 2025

Free plan · Customer support

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

Website builders

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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