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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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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A WordPress plugin that counts pageviews, visitors and referrers without cookies or sending data to third parties.

Since 2019

Free plan · Website analytics

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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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Adds sliders to WordPress pages that compare before and after images or videos, useful for salons, clinics and renovators.

Website builders · Trades and home services

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Free WordPress plugin for groups that lend out cargo bikes, tools or other shared items through bookable rental stations.

Free · Scheduling and booking · Charities and nonprofits

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WooCommerce plugin for running a multi-seller marketplace, with vendor storefronts, commissions and an admin dashboard.

Free plan · Online shops · Online sellers

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A Swedish tool for building and sending email newsletters, signup forms and automated mail series, free to begin.

Free plan · Email marketing

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A WordPress plugin that writes alt text, captions and filenames for your images so search engines can read them.

Free plan · SEO

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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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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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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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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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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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Free WordPress plugin for adding custom post types, taxonomies and fields and linking content together.

Free · Website builders · Agencies

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A WordPress plugin for developers to build sites visually or with an AI agent, then export them as static sites.

Free plan · Website builders · Agencies

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A free WordPress plugin that removes unused default features and content to tidy and speed up a site.

Free · Website builders · Developers

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Runs coding agents in managed cloud machines for code review, bug fixes and background tasks, set up in YAML.

Since 2024

Developer tools · Developers

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WordPress plugin for creating custom fields, post types and front-end forms to build data-driven sites.

Free plan · Website builders · Agencies

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WordPress plugin that adds live crypto price tickers, tables and charts to a website.

Website builders · Creators and writers

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Free WordPress plugin for running a business listing, staff directory or address book, with paid add-ons and templates.

Free plan · Website builders

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Keeps pull request discussions in sync across GitHub, Slack and VS Code so dev teams and AI agents review code faster.

Free plan · Developer tools · Developers

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Sends site pages and backlinks to Google through its indexing API and IndexNow, and shows crawl timing.

SEO · Agencies

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Watches GitHub, npm, PyPI, Docker Hub and other sources and tells you when projects you follow ship a new version.

Developer tools · Developers

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Lets WooCommerce shops take card payments on their own checkout through a Clover merchant account.

Payments and checkout · Online sellers

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Turns PDF brochures, catalogues and reports into online flipbooks you can share by link and track readers on.

Free plan · Documents and e-signature

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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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A WordPress plugin for building popups, slide-ins and notification bars inside the block editor without slowing pages.

Free plan · Marketing and social · Online sellers

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A hosted waiting room that queues visitors during traffic spikes so shops and ticket sites stay up and bots are held back.

Free plan · Online shops · Online sellers

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Drag and drop editor for publishers and marketers to build, host and monetise Google Web Stories without code.

Free trial · Marketing and social · Agencies

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Moves the products, customers and orders from a PrestaShop store into WooCommerce.

Free plan · Online shops · Online sellers

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Books shipments across many carriers, prints labels and handles picking, packing and returns for web shops.

Online shops · Shops and retail

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Converts news and blog articles into spoken audio with cloned or stock AI voices, for publishers.

Video and audio · 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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Self-hostable alternative to Vercel and Netlify for deploying web apps, with previews, environments and logs.

Free plan · Developer tools · Developers

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Feature flags for gradual rollouts that open a pull request to remove each flag from your code once it is done.

Free plan · Developer tools · Developers

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Adds restaurant ordering to a WooCommerce site, with delivery or pickup, address checks and time slots, and no fee per order.

Free plan · Online shops · Restaurants and cafés

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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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WordPress plugin that lets site owners show or hide each widget on chosen posts, pages and categories.

Free plan · Website builders

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A WordPress plugin that shows a Google, Microsoft 365 or iCloud calendar feed on your site and keeps it updated.

Free plan · Scheduling and booking

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SEO agent for founders that reads your Search Console data, plans topic clusters and drafts articles straight into your CMS.

Since 2024

Free plan · SEO

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WordPress plugin that copies pages built in WPBakery into Elementor layouts so site owners can switch builders.

Free plan · Website builders · Agencies

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Keeps a searchable log of who changed what on a WordPress site and alerts owners by email or text about risky events.

Security and passwords

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Run surveys in email, websites and apps, then group the answers into themes so product teams can act on customer feedback.

Free plan · Forms and surveys · Software companies

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Runs Terraform and OpenTofu plans on every pull request, checking policy and approvals before changes are applied.

Free plan · Developer tools · Developers