No moat. Still in business.

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Shrinks JPG, PNG, WebP and other images through a web tool, API or CMS plugins so websites load faster.

Since 2013

Free plan · Design and images · Agencies

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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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Point your website's HTML form at this service to store submissions, filter spam and send them to email or other apps.

Since 2014

Free plan · Forms and surveys · Agencies

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Runs automated tests against your APIs and websites after each deploy and on a schedule, with alerts on failure.

Since 2016

Uptime and monitoring · Developers

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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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Holds copies of your software's source code and SaaS setup in escrow so customers can recover them if the vendor fails.

Since 2017

Subscription · Security and passwords · Software companies

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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

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WooCommerce plugin that works out delivery charges from the real driving distance to each customer, using Google Maps.

Free plan · Online shops · Restaurants and cafés

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Lets site owners and bloggers schedule, target and serve their own banner ads from a hosted manager, with a WordPress plugin.

Free plan · Marketing and social · Creators and writers

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Sets up server-side tracking through Google Tag Manager so webshops capture fuller conversion data, with monitoring and attribution.

Free plan · Website analytics · Online sellers

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Free WordPress plugin that stores your media files in Google Cloud Storage and delivers them from there, not from your web host.

Free · Website builders · Agencies

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WordPress plugin for tour operators to sell trips, take deposits, manage departures and list tours on Viator and GetYourGuide.

Free plan · Scheduling and booking · Hotels and hospitality

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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

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Runs Claude Code and Codex jobs in parallel inside isolated containers, locally or on cloud runners, with memory shared across them.

Since 2018

Free plan · Developer tools · Developers

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A form backend that collects submissions from any HTML form and sends them to email, Slack or Zapier, for static site builders.

Since 2021

Free plan · Forms and surveys · Freelancers

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Deploys each labelled GitHub pull request as a live preview environment on your own Lightsail or Hetzner servers.

Since 2020

Developer tools · Developers

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Builds architecture diagrams and system maps from prompts, code, cloud setups or docs, aimed at engineering teams.

Since 2021

Free plan · Design and images · Developers

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A service that finds and quarantines flaky tests, skips unneeded CI jobs and runs a merge queue for software teams on GitHub.

Since 2021

Developer tools · Developers

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Connects to your SaaS tools to handle staff access requests, reviews and removals, with an agent doing the routine work.

Since 2024

Security and passwords · Software companies

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An API and plugin that flags throwaway email domains at signup so fake accounts never get in.

Free plan · Security and passwords · Developers

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Lets Indian online sellers compare couriers, book shipments and track returns from one panel tied to their store.

Free trial · Online shops · Online sellers

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WordPress plugin that hides part of a post behind a read more toggle, with lead capture and engagement tracking.

Subscription · Website builders · Creators and writers

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Collects photo and video product reviews after each order and shows them on shop pages and in Google Shopping, for online stores.

Subscription · Reviews and testimonials · Online sellers

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Collects verified buyer reviews for online shops and shows them on product pages and in Google Shopping.

Subscription · Reviews and testimonials · Online sellers

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AI agents that test your web or mobile app like a user on each pull request and report what broke.

Since 2024

Free plan · Developer tools · Developers

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A WordPress plugin that imports listings from property CRMs into Houzez sites and sends them out to portals.

Free plan · Automation and integrations · Property and estate agents

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Deploys Docker Compose apps from GitHub to your own Linux servers on each push, with domains, logs and backups.

Developer tools · Developers

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WooCommerce plugin that lets online shops in Costa Rica take payment through Sinpe Móvil.

Free · Payments and checkout · Online sellers

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Builds, cleans up and sends product feeds from your shop to Google Shopping, Meta, Amazon and other sales channels.

Free trial · Online shops · Online sellers

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A WordPress paywall for news and magazine publishers that sells reader subscriptions and shows who is likely to pay.

Communities and memberships · Creators and writers

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Open-source error tracker that ranks frontend bugs from errors and session replays and opens fix pull requests on GitHub.

Since 2024

Uptime and monitoring · Developers

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WooCommerce plugin that lets shoppers build gift registries and wishlists for weddings, birthdays and other events.

Online shops · Online sellers

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Website analytics that shows which traffic sources bring paying customers, for founders and small online businesses.

Subscription · Website analytics · Online sellers

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WooCommerce add-ons that create Taiwanese electronic invoices through ECPay, ezPay, Amego or SmilePay.

Subscription · Invoicing and billing · Online sellers

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Collects product reviews for online shops and helps manage and track Google Business Profile local rankings.

Free plan · SEO · Online sellers

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An SMTP relay and email API for sending transactional and marketing mail from apps, with searchable delivery logs.

Free plan · Transactional email · Developers

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WooCommerce plugin for running a wholesale or B2B shop with tiered prices, quotes and business sign-up.

Online shops · Online sellers

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Lets UK merchants split customer purchases into interest free monthly payments, both online and at the till.

Payments and checkout · Shops and retail

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A web translation editor for software teams that syncs app strings, auto-translates and hosts translation files on a CDN.

Free trial · Developer tools · Developers

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Tracks sales from affiliates and influencers for online brands and handles their commissions and tax forms.

Marketing and social · Online sellers

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WordPress plugin for running event calendars, taking registrations and selling tickets without per-ticket fees.

Free plan · Payments and checkout · Schools and tutors

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Sorts, filters and archives your GitHub notifications so developers can keep track of issues and pull requests outside email.

Free plan · Developer tools · Developers

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Self-hosted pastebin where every code snippet is a Git repo, for developers and teams who want their own Gist.

Free · Developer tools · Developers

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Generates images from text prompts right inside the WordPress editor so bloggers can illustrate posts.

Free trial · Design and images · Creators and writers

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

Free plan · SEO · Agencies

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WooCommerce plugin that lets shoppers save products to wishlists, with price drop and restock alerts for store owners.

Free plan · Online shops · Online sellers

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A free, open-source visual tool for web designers to build static sites that can pull content from a CMS or API.

Free · Website builders · Agencies

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A WordPress plugin that gathers your posts and pages into a PDF ebook, laid out in the block editor and ready to print.

Free plan · Documents and e-signature · Creators and writers