No moat. Still in business.

0

Draw electronic schematics and run analog and digital circuit simulations in the browser, with no install needed.

Since 2012

Design and images · Schools and tutors

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 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

A Chrome extension that strips clutter from web pages and adds reading rulers, text to speech and PDF tools for easier reading.

Since 2019

Focus and productivity · Individuals and families

0

Adds a text-to-speech player to blogs and publisher sites so visitors can listen to articles.

Since 2019

Free plan · Video and audio · Creators and writers

0

Gives you a phone number your audience can call to hear your podcast or sermons, no internet or apps needed.

Since 2020

Subscription · Podcasting · Creators and writers

0

CAPTCHA that blocks bot sign-ups and form spam without cookies or tracking, available as a WordPress plugin, self-hosted or managed.

Free plan · Security and passwords

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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

0

Find public toilets nearby with reviews, photos, door codes and details like changing tables.

Since 2024

Travel · Individuals and families

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

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

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 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

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

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

Since 2024

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

Writes alt text and file names for images in bulk to help WordPress sites with search ranking and accessibility.

Free plan · SEO · Agencies

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

Apps, fonts and a keyboard that bold the start of words so people can read text faster and with more focus.

One-off payment · Focus and productivity · Individuals and families

0

A phone app where friends and family swap voice memos and reply to specific moments, without booking a call.

Free · Something else · Individuals and families

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

WordPress plugin that adds a listen button so visitors can hear posts read aloud in natural voices.

Free plan · Video and audio · Creators and writers

0

A browser extension that checks text on any site you visit and boosts contrast so it is easier to read.

Free · Something else · Individuals and families

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

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

Adds a panel so low-vision visitors can change font size, colours and images, meeting Russian GOST accessibility rules.

Free · Website builders

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

A phone app that reads ebooks, documents, websites and printed pages aloud in 40 languages, useful for busy or visually impaired readers.

Video and audio · Individuals and families

0

A free desktop app where you hold a shortcut, speak, and your words are typed into whatever text field you are in.

Free · Focus and productivity · Individuals and families

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

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

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

A browser extension that swaps site video players for one that preloads faster and adds captions and accessibility controls.

Since 2023

Free · Video and audio · Individuals and families

0

Writes alt text for website images in over 130 languages and finds images missing descriptions, for accessibility and SEO.

Free plan · SEO

0

Adds an accessibility widget to your website and scans pages for WCAG problems, with tools for alt text and contrast.

Free plan · Website builders

0

Writes descriptive alt text for uploaded images or image links, helping sites rank better and work for screen reader users.

Since 2025

Subscription · SEO · Online sellers

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 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

Self-hosted, open-source spam filter for website forms that blocks bots without puzzles or cookies.

Free · Forms and surveys

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