No moat. Still in business.

0

Lets support and sales staff browse any website together with a customer in real time, without installing code.

Since 2013

Customer support

0

Pulls data out of recurring emails and attachments using your rules, then sends it to spreadsheets, CRMs or webhooks.

Since 2013

Free trial · Data and spreadsheets

0

Fires webhooks once or on a cron schedule in your timezone and alerts you when a call fails.

Since 2019

Free plan · Developer tools · Developers

0

Gives static website forms a hosted endpoint that stores submissions, filters spam and sends alerts to email, Slack or Discord.

Forms and surveys · Developers

0

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

Since 2022

Free · Notes and knowledge

0

Turns PDF liability waivers into online forms that customers sign, for businesses that still collect paper waivers.

Free plan · Documents and e-signature

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Jot tasks down quickly on iPhone or Mac and sort them into your other tools later.

Since 2024

Free plan · Projects and tasks · Individuals and families

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A small headless CMS for writing and publishing blog posts and media, pulled into your site by API.

Free plan · Website builders · Creators and writers

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A free personal URL that emails you when a script, cron job or build calls it, for developers who want simple alerts.

Free · Uptime and monitoring · Developers

0

An API that gives AI agents their own email inboxes to send and receive mail, with webhooks and scanning for prompt injection.

Since 2026

Free plan · Transactional email · Developers

0

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

Free plan · Security and passwords

0

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

0

Website live chat with an AI agent and one shared inbox for WhatsApp, Instagram, Messenger and email messages.

Since 2023Updated 13 days ago

Free plan · Customer support

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

Hosted service that receives, logs and retries webhooks, with a CLI for local testing and a typed SDK.

Since 2024

Developer tools · Developers

0

Open-source shared editor and headless CMS for writing technical docs, dev blogs and knowledge bases, with Git sync.

Notes and knowledge · Developers

0

Receives incoming email and passes each message to your app as a signed HTTP POST, so there's no need to run a mail server.

Free · Developer tools · 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

An API that renders HTML and saved templates into PDFs and screenshots, for developers who need documents from their apps.

Pay as you go · Documents and e-signature · Developers

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Send your own HTML form to a hosted endpoint that stores entries, holds back spam and forwards them to email or other tools.

Forms and surveys · Agencies

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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

0

A form backend for developers that adds front-end validation, autoresponders and spam blocking, with a HIPAA option.

Free trial · Forms and surveys · Health and clinics

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Lets app and game developers change settings and run A/B tests remotely, without shipping a new build or waiting for store review.

Since 2024

Developer tools · Developers

0

A hosted service that sends your app's webhooks with retries, logs and debugging so developers need not build it.

Free plan · Developer tools · Developers

0

Sends webhooks from your app to customers with retries, signatures and logs, hosted in the EU or run on your own servers.

Free plan · Developer tools · Developers

0

Posts a Slack alert when Apple or Google approves or rejects your app, or a TestFlight build is ready.

Since 2023

Subscription · Uptime and monitoring · Developers

0

A simple self-hosted wiki that stores markdown pages in git, with file attachments and full page history.

Free · Notes and knowledge

0

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

0

Build PDF templates in a visual or HTML editor, then fill them with data by API or Zapier to make invoices and other files.

Free plan · Documents and e-signature

0

A light self-hosted Git server with a web interface that runs as one binary or Docker container on small machines.

Free · Developer tools · Developers

0

Connect email accounts and get messages sent to your webhooks, with an API for replies and content analysis.

Since 2023

Free trial · Developer tools · Developers

0

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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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

0

Lets developers share live progress of scripts and jobs through a link, via an API or a tqdm replacement.

Uptime and monitoring · Developers

0

Runs versioned SQL and Python database migrations with dry runs, history checks and rollbacks, for Python teams.

Since 2026

Free plan · Developer tools · Developers

0

A native Mac app for developers to set up local mock endpoints, inspect incoming requests and test webhooks and API failures.

Since 2026

Developer tools · Developers

0

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

Free plan · Website builders

0

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

Website builders

0

A free, quick kanban board for tracking bugs, ideas and small projects, which you can also run on your own server.

Free · Projects and tasks

0

API and dashboard that let developers send and receive WhatsApp messages from their own product.

Since 2025

Free plan · Developer tools · Developers

0

An API that adds open and click tracking to emails from any provider and sends the events to your app by webhook.

Since 2026

Free plan · Transactional email · Developers

0

One MCP server that gives AI agents hundreds of sourced data streams like weather, markets and releases, with full history.

Since 2026

Developer tools · Developers

0

A self-hosted knowledge base that serves Markdown files as searchable, editable docs for teams.

Free · Notes and knowledge

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WordPress plugin for writing and organising product docs, wikis and help centres, with search and an AI chatbot.

Free plan · Customer support

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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

0

Scans your files and databases and builds a searchable catalogue of datasets, columns and owners that runs in a browser.

Free · Data and spreadsheets

0

Generates editable architecture, ER and cloud diagrams from a description, SQL, Prisma, Terraform or a code repo.

Since 2025

Free plan · Design and images · Developers

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Opens a public HTTPS address to a server on your own machine, so developers can test webhooks and bots.

Since 2025

Free plan · Developer tools · Developers