No moat. Still in business.

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

Lets teams edit, test and send transactional email templates without code deploys, with A/B tests and analytics.

Since 2014

Subscription · Transactional email · Software companies

0

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

Since 2013

Customer support

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

Email marketing app for sending newsletters, campaigns and automated sequences, built for teams that write together.

Since 2018

Free plan · Email marketing · Online sellers

0

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

0

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

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

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

Handles in-app subscriptions for mobile apps, with a paywall builder, price tests and revenue reports for app teams.

Free plan · Payments and checkout · 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

Create branded short links and QR codes, track clicks and route visitors by device or country, for marketing teams.

Since 2026

Free plan · Marketing and social

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

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

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

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

Since 2023

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

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

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

Free plan · Documents and e-signature

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

0

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 lightweight Mac code editor that runs and debugs code in dozens of languages, for programmers who want quick scripts.

One-off payment · 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

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

0

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

Feature flag service that lets software teams roll out, test and switch off features in production without redeploying.

Subscription · Developer tools · 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

Turn app features on or off and roll them out to chosen users without redeploying, with unlimited team seats.

Free plan · Developer tools · Developers

0

Native Mac code editor for web and app developers, with Git, debugging, terminal and remote file publishing.

Free trial · Developer tools · Freelancers

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

WordPress plugin that pins a floating button to blog posts so bloggers get more clicks on offers and contact links.

Free plan · Marketing and social · Creators and writers

0

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

Developer tools · Developers

0

Hosted service that sends webhooks for software teams, with retries, dead letter queues and delivery logs.

Since 2025

Free plan · Developer tools · Developers

0

Build popups, multi-step forms, quizzes and on-site widgets to collect leads and sales from website visitors.

Free plan · Forms and surveys

0

Build a branded waitlist page for an upcoming product, collect and verify signups, and export or push them elsewhere.

Free plan · Forms and surveys · Software companies

0

Receives webhooks from providers like Stripe, then verifies, stores and forwards them to your services with retries.

Free plan · Developer tools · Developers

0

Terminal AI agent that edits C and C++ code, then runs your build, tests and sanitizers on each change before you see the diff.

Since 2026

Free plan · Developer tools · Developers

0

Shows different text, popups or redirects to each WordPress visitor based on location, device or behaviour.

Free plan · Marketing and social

0

Gives each service a private webhook URL and turns incoming JSON into plain English iPhone alerts, with sensitive fields masked.

Since 2026

Uptime and monitoring · 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

Lets merchants invoice in Monero and have customers pay straight into the merchant's own wallet, with APIs and webhooks.

Since 2026

Payments and checkout · Shops and retail

0

An API that takes videos your users upload, converts them to web-ready formats and serves them from a CDN.

Free plan · Video and audio · Developers

0

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

0

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

Free plan · Projects and tasks · Individuals and families

0

An email sending API for developers that shows every message's path from queue to delivery, bounce or open.

Free plan · Transactional email · Developers

0

Dashboard for email sent through Amazon SES showing bounces, deliveries, complaints, opens and clicks, run yourself or hosted.

Free · Transactional email · Developers

0

Lets WordPress site builders take snapshots, roll back broken changes, clear demo data and reset a site in one click.

Subscription · Website builders · Agencies

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