How much time will I actually save with Fazm?

Most users report saving 45-90 minutes per day on repetitive tasks. The biggest time savings come from email management (drafting replies, sorting, archiving), form filling (expense reports, CRM updates, applications), research (comparing products, gathering data from multiple sites), and social media (cross-posting, scheduling, replying). For example, booking a flight that normally takes 10 minutes of clicking through airline sites takes a single voice command with Fazm. Filing an expense report that requires opening a PDF, extracting numbers, and entering them into a spreadsheet becomes one spoken sentence. The more repetitive and multi-step your daily work is, the more time you get back.

What exactly can Fazm control?

Fazm controls everything you can do manually on your Mac. That includes mouse movements and clicks, keyboard typing, browser navigation and form filling, app switching, file management in Finder, and system-level actions. It uses direct browser DOM control for web interactions - meaning it reads and manipulates the actual page structure rather than taking screenshots and guessing where to click. For native macOS apps, Fazm uses accessibility APIs to interact with buttons, menus, text fields, and other UI elements. This works across any application: Chrome, Safari, VS Code, Slack, Figma, Terminal, Mail, Calendar, and more.

How is Fazm different from ChatGPT or Claude?

Chatbots like ChatGPT and Claude give you answers in a conversation window. Fazm takes action directly on your computer. When you say 'reply to Sarah's email,' Fazm opens your email app, finds Sarah's message, writes a contextual reply, and sends it. A chatbot would tell you what to write, but you still have to do all the clicking and typing yourself. Fazm moves your mouse, types on your keyboard, clicks buttons, and navigates between apps. It is a computer agent, not a chat assistant.

How does the memory layer work?

Fazm builds a personal knowledge graph by extracting information from your files, browsing history, conversations, and daily activity. Over time, it learns your contacts (names, emails, relationships), accounts and credentials, preferences (formatting, tone, scheduling habits), and frequently used workflows. In your first week, you might say 'Reply to Sarah's email, she's my cofounder, her email is sarah@acme.com.' By week four, you just say 'Reply to Sarah' because Fazm already knows who she is. By week eight, Fazm can draft the reply before you even ask. All of this data stays locally on your Mac - your knowledge graph never leaves your machine or gets sent to any cloud service.

Is Fazm safe? Can it mess up my computer?

Safety is built into every layer of Fazm. You watch every action in real-time on your screen - Fazm moves your mouse and types visibly, so there is nothing hidden. You can stop any action at any point by pressing a keyboard shortcut. Fazm also shows you what it plans to do before executing destructive actions like deleting files or sending emails, giving you a chance to confirm or cancel. Because Fazm is open source, the code is fully auditable on GitHub. There is no hidden behavior, no background processes making changes you cannot see, and no actions that bypass your screen.

What platforms does Fazm support?

Fazm currently supports macOS, running natively on both Apple Silicon (M1, M2, M3, M4) and Intel Macs. It is built with Swift and uses macOS-specific frameworks like ScreenCaptureKit for screen analysis and Accessibility APIs for app control, which is why macOS is the primary platform. Windows and Linux support are on the roadmap but do not have release dates yet. You can also control your Mac remotely from your phone using Fazm Remote, which gives you voice access to your desktop while you are away from your computer.

How does Fazm voice input work?

One keyboard shortcut activates push-to-talk. Hold the key, speak naturally about what you need done, and release. Fazm transcribes your speech locally using on-device models, so there is no network latency for the voice recognition step. You do not need wake words like 'Hey Siri' or 'OK Google' - just press and talk. You can also type commands into the floating toolbar if you prefer text input. Fazm understands natural language, so you do not need to memorize specific commands. Say 'book me a flight to Tokyo next Thursday' or 'find the cheapest AirPods on Amazon' and Fazm figures out the steps.

Is my data sent to the cloud?

Fazm processes screen analysis and memory entirely on your machine. The personal knowledge graph, file indexing, and screen capture all run locally. The only data that leaves your Mac is the intent - a text description of what you want to accomplish, which is sent to the AI model (Claude or GPT) for action planning. Your actual screen content, file contents, browsing history, and personal knowledge graph never leave your computer. Fazm is also open source, so you can verify exactly what data is transmitted by reading the code on GitHub. For users who need complete air-gapped operation, local model support is planned.

Back to Blog

Automate macOS App Testing With Accessibility APIs Instead of Manual Clicking

Fazm Team·March 17, 2026·2 min read

macosapp-testingaccessibility-apiautomationdeveloper-tools

Automate macOS App Testing With Accessibility APIs Instead of Manual Clicking

If you build macOS apps, you know the routine. Change some code, build, launch, click through five screens to reach the thing you changed, verify it looks right, repeat. This manual testing loop eats hours every day.

Accessibility APIs change this completely.

The Old Way Is Painful

Manual testing after every change means:

Navigating through the full app flow to reach the affected screen
Checking multiple states - empty, loading, error, populated
Testing on different window sizes
Verifying that unrelated screens did not break

For a complex app with 20+ screens, a thorough manual pass takes 30-60 minutes. Most developers skip it and just check the one screen they changed - which is how regressions slip through.

The Accessibility API Approach

macOS accessibility APIs let an agent traverse your app's UI tree programmatically. Every button, text field, label, and container is exposed as an accessible element with properties like role, title, value, and position.

An AI agent can use this to:

Navigate to any screen by clicking through menus and buttons programmatically
Read the current state of every visible element
Take screenshots at each step for visual verification
Compare against expected state to catch regressions

Building a Test Flow

The practical setup: after each build, an agent launches the app, traverses the accessibility tree, navigates to key screens, and screenshots each one. It compares the current state against the last known good state and flags differences.

This is not traditional UI testing with brittle XCTest selectors. The agent understands the UI semantically - it knows what a "Settings" button is regardless of its exact position or element ID.

Why This Beats Screenshot Diffing Alone

Pure screenshot comparison produces too many false positives - a pixel shift from a font rendering change triggers alerts. Accessibility-based testing combines structural understanding with visual verification, giving you meaningful alerts without the noise.

Automate macOS App Testing With Accessibility APIs Instead of Manual Clicking

Automate macOS App Testing With Accessibility APIs Instead of Manual Clicking

The Old Way Is Painful

The Accessibility API Approach

Building a Test Flow

Why This Beats Screenshot Diffing Alone

More on This Topic

Related Posts

Giving Claude Code Eyes and Hands with macOS Accessibility APIs

Why Every Powerful AI Agent Runs on Mac - It's the Accessibility APIs

Accessibility APIs Are the Cheat Code for Computer Control