No moat. Still in business.

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Wholesale ordering portal for brands that sell to retailers, handling B2B orders, stock levels and invoices.

Since 2014

Online shops · Shops and retail

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Tracks billable hours for agencies and freelancers, then builds invoices that clients can pay by card.

Since 2011

Free trial · Invoicing and billing · Agencies

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Desktop and web client for querying and editing SQL and NoSQL databases such as PostgreSQL, MySQL and MongoDB.

Since 2021

Free · Developer tools · Developers

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Upload a PDF and fax it to numbers in 50 countries, paying per fax, with an email when it goes through.

Since 2017

Pay as you go · Documents and e-signature

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Free open source desktop tool that plots millions of table rows visually so analysts can spot outliers and odd patterns.

Since 2024

Free · Data and spreadsheets

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Adds a shopping cart and checkout to an existing website, blog or link page so you can sell products without a new store.

Since 2022

Subscription · Payments and checkout · Online sellers

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Builds and publishes a small business website from a few answers, with AI writing the copy and you paying for each page

Free plan · Website builders

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Booking software for tour and activity operators with payments, QR check-in and availability synced to over 70 OTAs.

Free trial · Scheduling and booking · Hotels and hospitality

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Pulls sales, customer and product data from stores and payment gateways into one set of reports for online sellers.

Subscription · Website analytics · Online sellers

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Lets online stores run their own affiliate program, with commission tracking, a branded portal and PayPal payouts.

Marketing and social · Online sellers

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WordPress plugin for creating, selling and running online courses with quizzes and certificates.

Free plan · Courses and learning · Creators and writers

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WordPress plugin for adding price estimate calculators to a site, emailing PDF quotes and collecting leads from service customers.

Free plan · CRM and sales · Trades and home services

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Desktop app for querying and managing MySQL, Postgres, SQLite and many other databases, with paid team features.

Since 2020

Free plan · Developer tools · Developers

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A Mac database client for querying and editing data, with SQL and Python notebooks and an AI assistant that writes queries.

Since 2023

Free plan · Developer tools · Developers

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Free self-hosted app for small businesses to send quotes and invoices, track client payments and take card payments online.

Free · Invoicing and billing

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WordPress plugin for making invoices and quotes as PDFs and taking payment through Stripe or PayPal.

Free plan · Invoicing and billing

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Desktop database manager for browsing tables and writing SQL across Postgres, MySQL, SQLite, ClickHouse and more.

Since 2024

Free plan · Developer tools · Developers

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Czech payment gateway with no monthly fee for e-shops, ticket sellers and towns, taking cards, transfers and QR.

Pay as you go · Payments and checkout · Online sellers

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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

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Copies chosen Jira projects and Confluence spaces into a local SQLite file so you can search offline and run SQL on your backlog.

Developer tools · Developers

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A blog engine for groups of writers who edit the same post and photo gallery together in real time, self-host or hosted.

Since 2026

Website builders · Individuals and families

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A WordPress plugin that connects Indian and global payment gateways to shop, form, course and donation plugins.

Payments and checkout

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A WordPress booking calendar for daily rentals that takes reservations and payments and syncs with other booking sites via iCal.

Scheduling and booking · Property and estate agents

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Invoicing for freelancers and small firms: branded invoices and quotes, online payment links and automatic reminders.

Free plan · Invoicing and billing

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Lets WooCommerce shop owners add, remove, reorder and hide the fields customers fill in at checkout.

Free plan · Online shops · Online sellers

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Manages file downloads on WordPress with password and access controls, download tracking, and options to sell digital products.

Free plan · Online shops · Online sellers

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WordPress plugin for listing events on a calendar, taking registrations, selling tickets and checking guests in.

Free plan · Scheduling and booking · Events

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WordPress plugin that adds Buy Now buttons so site owners can take PayPal and card payments in a popup checkout.

Free · Payments and checkout · Online sellers

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Lets you write quotes and invoices inside WordPress, turn quotes into invoices and take payment by PayPal.

Free plan · Invoicing and billing · Agencies

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A WordPress plugin that adds an appointment booking form and calendar to a business website, with paid add-ons for SMS and payments.

Free plan · Scheduling and booking

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Lets creators build and sell online courses, paying a fee per enrolled student instead of a monthly plan.

Since 2026

Pay as you go · Courses and learning · Creators and writers

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Creates realistic linked test data for SQL and MongoDB databases from a plain English description.

Since 2026

Free plan · Developer tools · Developers

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A free WordPress plugin for taking one-off and recurring payments through buy buttons, payment forms and invoices.

Free plan · Invoicing and billing

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Turns prompts into editable Python for mesh modelling, simulation setup and 3D printing, with shareable 3D results.

Since 2025

Free plan · Design and images · Manufacturing

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Free WooCommerce plugins that connect a store to Stripe, PayPal or Braintree to accept cards and other methods.

Free · Payments and checkout · Online sellers

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Desktop app for developers to query, browse, edit and chart data across Postgres, MySQL, MongoDB and other databases.

Since 2025

Free plan · Developer tools · Developers

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A desktop app to connect to 30+ databases, write or generate queries with your own AI keys, edit data and build dashboards.

Since 2026

Free trial · Developer tools · Developers

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Real-time US stock, ETF and options data through an API or Google Sheets formulas, for traders and developers.

Free plan · Data and spreadsheets · Individuals and families

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Visual editor for database schemas that writes SQL migrations and keeps a history of schema changes.

Developer tools · Developers

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Runs an affiliate program inside WooCommerce using coupon codes and referral links, with dashboards and commission payouts.

Free plan · Online shops · Online sellers

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An offline desktop SQL client for Postgres, MySQL, SQLite and others, with visual query plans and dashboards.

Since 2025

Free plan · Developer tools · Developers

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Builds WordPress forms in the block editor, Elementor or Bricks, including multi-step, calculator, payment and login forms.

Forms and surveys

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A visual database client for MongoDB, PostgreSQL, MySQL and more that lets developers build queries, diagrams and charts.

Since 2026

Free plan · Developer tools · Developers

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Desktop SQL client for Postgres, MySQL and SQLite with notebooks, a query builder and access for AI agents.

Free · Developer tools · Developers

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A WordPress plugin to build signup and login forms, user profiles and free or paid memberships with restricted content.

Forms and surveys · Creators and writers

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Open-source wiki software you host yourself so a team can write and share its internal documentation.

Free · Notes and knowledge

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Chess clubs, tournament directors and coaches handle registrations, pairings, members and payments in one place.

Since 2026

Free plan · Scheduling and booking · Schools and tutors

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A WordPress plugin that lets shops sell subscriptions with trials, plan changes and a customer portal, for a 1% fee.

Free · Payments and checkout · Online sellers