Aside vs Manus
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Aside is a YC-backed agent browser: you install the browser and the agent works inside your logged-in sites, with local memory, a benchmark-topping browser agent, and an agent password manager. Manus is a cloud AI agent platform — now part of Meta — where you delegate tasks to a cloud workspace, with a Browser Operator extension that can also work inside your current browser. Tabbit is an AI-native browser with free multi-model Agent Mode and reusable Skills on Mac and Windows.
Opens tabbit.ai or tabbit.com based on your language.
30-second verdict
Choose Aside if you want a browser-native agent that signs into your real accounts and finishes multi-step web tasks right in a new browser. Choose Manus if you prefer to delegate work to a cloud agent that runs async and reaches into your current browser through an extension. Choose Tabbit for a browser-native agent that runs on both Windows and macOS with free multi-model Agent Mode.
The third option
You do not have to choose between “install a new browser” and “add a cloud agent plus extension.” Tabbit is a browser-native agent that runs on the Windows and macOS machines your team already uses, with free multi-model Agent Mode and reusable Skills.
The real axis
Where the agent lives: a browser you install or a cloud you delegate to
Aside and Manus are both powerful AI agents, but they enter your workflow from opposite directions. Aside is a browser you install — the agent is the browser. Manus is an agent that lives in the cloud — you delegate tasks, it runs them async, then reaches into your current browser through a Browser Operator extension.
Install a new browser
Aside: the agent is the browser
You open Aside the way you open Chrome, and every tab is a place where the agent can work: research, forms, payments, communications, and docs. Logged-in sessions are managed for the agent, and sensitive actions wait for your approval.
Delegate from anywhere
Manus: the agent lives in the cloud
$ manus run --async research
▸ planning in cloud workspace
▸ browser operator connected
▸ report ready · 14m
You keep your current browser and apps. You give Manus a goal, it plans and executes in a cloud workspace — and the Browser Operator extension lets it also act inside your current browser using your active tabs and logins.
At a glance
Aside vs Manus vs Tabbit scoreboard
These are two different routes into the same agent era: a browser you install, or a cloud agent that extends into your browser. Plans and platforms change, so confirm details on each official site before switching.
| Dimension | Aside | Manus | Tabbit |
|---|---|---|---|
| Core form | Standalone agent browser | Cloud agent + browser extension | AI-native browser with Agent Mode |
| Best at | Multi-step work in logged-in web apps | Async research, content, and broad automation | Web research, forms, multi-tab tasks |
| Where tasks run | In your browser, local | Cloud workspace (async) + your browser via extension | In your browser across tabs |
| Browser control | Native — the browser is the agent | Browser Operator extension + cloud computer | Native agent across tabs and sites |
| Sessions / logins | Agent password manager, credentials hidden from AI | Uses your active tabs and logins in your current browser | You provide task context explicitly |
| Platforms | macOS (public download) | Cloud (any OS) + macOS/Windows desktop + extension | macOS and Windows |
| Models | BYO ChatGPT/Claude or API key | Meta-powered model stack | GPT, Claude, Gemini, DeepSeek, Qwen and more |
| Pricing | Free 500 credits/mo; Pro $20; Max $200 | Credit plans: Standard / Custom / Extended | Free public beta incl. Agent Mode |
How they work
Same task, three different ways
The honest question is not “which agent is smarter.” It is whether you want your work done in your own browser, in real time, or delegated to a cloud agent that reports back.
Deep research across many sites
Compare ten vendors, read reviews, and summarize findings into a decision memo.
The agent opens your logged-in research tabs, reads content you have access to, and writes a structured summary in the same window you are watching.
You paste the goal into the Manus web app, it runs in a cloud workspace with Wide Research, and you get a report later — great when you can wait and work across devices.
Agent Mode runs the multi-site research in your browser, with live tabs you can steer, then drops the summary into your workspace.
Forms, bookings, and account tasks
Fill a CRM entry, book a flight, or update a dashboard inside a logged-in account.
Runs inside your logged-in sites with credentials managed by the agent password manager; sensitive actions wait for approval.
Browser Operator uses your current browser’s active tabs and logins; multi-step workflows run while you supervise.
You give explicit task context; Agent fills forms and moves data between tabs on the sites you already use.
Repeatable weekly workflows
The same intake, report, or data-entry routine every week.
Reusable routines are available on Pro; credits meter heavy use.
Scheduled tasks and concurrent runs in the cloud; credits meter usage.
Reusable Skills run in the browser on demand, included in the free Agent Mode.
Implementation details change quickly — confirm limits, credits, and pricing on each official site before switching.
The overlap
When Manus starts to look like a browser
Manus is a cloud agent, but in 2026 it also reaches into your local environment. Here is how far that goes compared with a browser-native agent.
Manus Browser Operator
A browser extension that turns your current browser into an AI browser. It uses your real IP, active tabs, and logged-in sessions to plan, navigate, and click through multi-step workflows.
My Computer (desktop)
The Manus desktop app (macOS + Windows) manages files, runs commands, and automates background tasks on your machine — a computer-use layer beyond the browser.
Still an extension, not a browser
Browser Operator adds an agent to the browser you already use; it does not give you an agent-native browser with its own tab model, password manager, or memory layer.
Async-first workflow
Manus is built around delegating tasks and checking results later. Browser-native agents are built around watching the agent work in real time inside your tabs.
Logins, credentials & control
Who holds your accounts and passwords?
Because both tools act on real websites, the session and credential model matters as much as the agent’s raw ability.
Aside: credentials stay hidden
- ✓Agent password manager signs in without exposing passwords to the AI
- ✓Sensitive actions require your approval; access is audited
- ✓Local memory keeps your context on your machine by default
Manus: uses your current browser
- ✓Browser Operator uses your existing active tabs and logged-in sessions
- ✓No separate sign-in vault — it inherits what your browser already has
- ✓Cloud tasks run in a Manus workspace; check its trust center for handling
Tabbit takes a different route: you give the agent explicit task context per task, so you never hand over your whole credential vault.
Pick your route
Which one fits the way you work?
All three can be useful. The right choice depends on where your work happens and how you like to supervise an agent.
You live in logged-in web apps
Your day is CRM, email, dashboards, and docs inside real accounts, and you want the agent to work there natively.
Consider AsideYou delegate async work
You want to hand off research, reports, or content generation and check back later from any device, plus a browser extension for extra reach.
Consider ManusYou want it in the browser you already use
You want a browser-native agent on Windows and macOS with free multi-model Agent Mode and reusable Skills, without a credit wall.
Consider TabbitHonest downsides
What each tool asks you to accept
Aside’s trade-offs
- ✕Public download is macOS-first; Windows users wait
- ✕Agent depth is metered by credits; heavy use needs Pro or Max
- ✕You commit to a new browser as your daily driver
Manus’s trade-offs
- ✕Usage is credit-metered; serious workloads add up
- ✕Browser control is an extension on top of your existing browser, not a native browser agent
- ✕Cloud async means you are not watching it work in your tabs in real time
The third option
Tabbit: a browser-native agent without the trade-offs
Tabbit was built for people who want the browser-native agent model without being locked to one platform or a credit meter.
Free multi-model Agent Mode
Agent Mode is part of the free public beta, with GPT, Claude, Gemini, DeepSeek, Qwen and more to switch between.
macOS + Windows
Runs on both desktop platforms your team already uses — no waiting for a Windows build.
Reusable Skills
Turn your weekly web workflows into one-click Skills that run across tabs and sites.
No credit wall
No per-task credit accounting for everyday Agent Mode use in the free beta.
FAQ
Aside vs Manus: what people ask
What is the main difference between Aside and Manus?+
Aside is a browser-native agent — you install a new browser and the agent is the browser. Manus is a cloud AI agent platform: you delegate tasks to a cloud workspace, and a Browser Operator extension lets it also work inside your current browser.
Is Manus a browser?+
No. Manus is a cloud agent platform with a web app, desktop app, and a Browser Operator browser extension. It can act inside your existing browser, but it is not a standalone browser like Aside.
Can Manus control my browser?+
Yes, through the Manus Browser Operator extension. It uses your active tabs and logged-in sessions to plan, navigate, and click through multi-step workflows in your current browser.
Does Manus see my passwords?+
Manus Browser Operator works in your current browser session and uses your existing logins; Manus’s trust center covers cloud handling. Aside takes a different approach: its agent password manager signs you in without exposing passwords to the AI.
Is Aside free?+
Aside has a free plan with 500 credits per month, plus paid Pro and Max tiers. Tabbit’s Agent Mode is included in the free public beta.
Which is better for web research, Aside or Manus?+
For live, logged-in, multi-site research in your own browser, browser-native agents like Aside and Tabbit shine. For async deep research you can delegate and check later from any device, Manus with Wide Research is strong.
Does Manus work on Windows?+
Yes. The Manus desktop app supports macOS and Windows, the Browser Operator extension works in your existing browser, and the cloud web app works on any OS. Aside’s public download is currently macOS.
Can Tabbit replace both Aside and Manus?+
Tabbit is a browser-native agent on macOS and Windows with free multi-model Agent Mode and reusable Skills. It is a strong third option for browser work; evaluate your specific cloud-async needs before switching.
Try a browser-native agent for free
Tabbit puts Agent Mode, multi-model chat, and reusable Skills in a browser that runs on Mac and Windows — free during public beta.