No moat. Still in business.

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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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Make your own flashcard decks and review them on a spaced repetition schedule in the browser.

Since 2015

Free plan · Courses and learning · Individuals and families

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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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Checks code written by AI coding agents for security flaws and team standards, in pull requests and inside the editor.

Free plan · Security and passwords · Developers

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Helps students sort courses, tasks, class schedules, flashcards and files into colour-coded folders.

Free · Focus and productivity · Individuals and families

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Kanban board for developers that hands tasks and their context to coding agents through MCP and VS Code.

Since 2026

Projects and tasks · Developers

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Shows how many watts each Mac app is drawing from the battery and how much runtime you would get back by closing it.

Free plan · Something else · Individuals and families

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Fixes the mixed content and insecure content warnings a WordPress site shows after it moves to HTTPS.

Website builders

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An iPhone terminal with persistent SSH sessions, server alerts and live views of coding agents running on your hosts.

Since 2026

Uptime and monitoring · Developers

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A note app for desktop and phone that records and transcribes, then answers questions using your own notes.

Notes and knowledge · Individuals and families

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Edit styles, layout and animations visually on your live site while your AI coding agent writes the changes into the source.

Since 2026

Design and images · Developers

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An iPhone app that takes Japanese learners from beginner to fluent with one new sentence per flashcard and spaced review.

Since 2015

Courses and learning · Individuals and families

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A browser extension that saves and highlights words you look up on web pages, then drills them with flashcards.

Since 2020

Free plan · Courses and learning · Individuals and families

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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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Note app for students that builds flashcards, quizzes and summaries from notes and PDFs with spaced repetition.

Since 2021

Free plan · Courses and learning · Individuals and families

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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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A study app for students with spaced repetition flashcards, made from notes and PDFs, and scheduled around your calendar.

Free plan · Courses and learning · Individuals and families

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

Since 2023

Data and spreadsheets

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Mac editor where you write what to build, agents comment and explore options, then build the chosen one as a pull request.

Since 2024

Developer tools · Developers

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Runs coding agents inside your team's own workflows, turning tickets into pull requests you review, on their cloud or yours.

Developer tools · Developers

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A cloud workspace for creating, running and sharing marimo Python and SQL notebooks for data work

Since 2024

Developer tools · Developers

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Flashcard app that uses spaced repetition so learners review hard cards more often, with sync between devices.

Courses and learning · Individuals and families

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A keyboard-driven Mac and Linux app for reviewing GitHub pull requests, with diffs, checks and threads loaded from a local cache.

Developer tools · Developers

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A native Mac app that runs Claude Code, Codex and other agent CLIs side by side, with transcripts and code rollback.

Since 2026

Developer tools · Developers

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Shows a team's coding agent sessions with token cost, time and skill use per message, so teams can learn from them.

Free plan · Developer tools · Developers

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A reading and study app that lets you clip from books and papers, link the clips in mind maps and review them as cards.

Courses and learning · Individuals and families

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Desktop app that keeps your coding agents, terminals and editors in saved rooms so you can watch, steer and resume them.

Since 2026

Developer tools · Developers

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Learn Japanese or Korean by tapping words in YouTube videos, manga and books, with flashcards that track what you know.

Free plan · Courses and learning · Individuals and families

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A set of AI agents that turn customer requests into tickets, code changes and reviewed pull requests for software teams.

Since 2026

Subscription · Developer tools · Developers

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A web workspace where analysts write SQL over market prices, macro series and SEC filings, then chart the results without Python.

Since 2026

Subscription · Data and spreadsheets

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An iPhone and iPad SSH terminal that alerts developers when a coding agent running under herdr is blocked or finished.

Since 2026

One-off payment · Developer tools · Developers

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Coding environment that runs several AI agents in parallel on your codebase, using any model or coding plan you already pay for.

Since 2025

Developer tools · Developers

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Learn to read Arabic with alphabet lessons, graded stories and flashcards that schedule reviews around your memory.

Since 2026

Free plan · Courses and learning · Individuals and families

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Mac app that runs several Claude Code and Codex accounts side by side and moves a task to another account when one hits its limit.

Since 2026

Free trial · Developer tools · Developers

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An OpenAI-compatible API serving a Qwen coding model for a fixed monthly fee instead of paying per token.

Since 2026

Subscription · Developer tools · Developers

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Mac app that runs Claude Code, Codex and other coding agents side by side in separate git worktrees, with a second agent reviewing diffs.

Since 2026

Free · Developer tools · Developers

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Mac app that puts projects, terminals, previews and coding agents on one zoomable canvas so you can watch them all.

Since 2026

Developer tools · Developers

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Mac app for developers using several terminal coding assistants: talk to each in one window and return to any running session.

Free plan · Developer tools · Developers

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Searches and ranks open-source repos by README, license and quality so developers and coding agents can pick a base to build on.

Since 2026

Free plan · Developer tools · Developers

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A task tracker where software teams assign issues to AI coding agents and follow their progress next to human work.

Free trial · Projects and tasks · Developers

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Runs coding agents on your own machine with your model keys, re-running tests before each pull request and keeping lessons.

Since 2026

Free plan · Developer tools · Developers

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A desktop app that runs Claude Code, Codex, Kimi and GLM together and sends each task to a cheaper model when it can.

Since 2026

Free · Developer tools · Developers

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Menu bar app on Mac that starts Claude Code and other AI command line tools and shows each session's spend, context and limits.

Free plan · Developer tools · Developers

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Gives coding agents a version-aware search index of open-source code, docs and package data through an API and MCP server.

Since 2025

Developer tools · Developers

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Makes isolated copies of a production Postgres database in seconds so coding agents can test changes safely.

Developer tools · Developers

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A free Mac terminal that arranges every session into a grid by itself, made for running many AI coding agents side by side.

Since 2026

Free · Developer tools · Developers

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Lets a team's AI coding agents pass work to each other over MCP and pings a person in Slack when stuck.

Since 2026

Free plan · Developer tools · Developers

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A desktop workspace where developers run several AI coding agent CLIs in terminal panes and review their changes.

Since 2026

Subscription · Developer tools · Developers