An Opera browser review for people who work in the browser all day

Opera is a good browser for work if the main problem is too many tabs and too many chat apps, and a weaker fit if the main problem is too many accounts. It is free, it runs on the same Chromium base as Chrome, and it ships features that Chrome leaves to extensions: automatic tab grouping, workspaces, vertical tabs, a free built-in VPN, an ad blocker, and messengers such as Slack and WhatsApp docked in a sidebar. What it does not offer on its feature pages is a way to keep several accounts of the same service signed in side by side. This review was checked against Opera's own feature pages on October 18, 2026, and it is written for someone who spends the working day inside Gmail, Slack, Notion and a few admin consoles rather than for someone choosing a browser to read the news.

This site is published by the developer of a Mac app aggregation browser, one of the alternatives covered near the end.

The verdict in one table

Most Opera reviews are built from forum threads and opinion. The table below sticks to what Opera states on its own pages and what that means for a working day.

Area	What Opera ships	What it means at work
Engine	Chromium, the same base as Chrome	Sites built for Chrome behave the same way
Tab organization	Tab Islands, Workspaces, vertical tabs	Strong for heavy tab users
Chat apps	WhatsApp, Slack, Discord, Messenger, Telegram in the sidebar	One account per messenger in the sidebar panel
Privacy	Free browser VPN, ad blocker, tracker blocker	Useful on public Wi-Fi, but covers the browser only
Price	Free; Opera Neon is a separate paid browser	No cost to try the main browser
Platforms	macOS, Windows, Linux, iOS, Android, Chromebook	Sync across all of them with a free Opera account

The short version: Opera is a better-organized Chrome for one person with one set of accounts. Once the job involves two Gmail inboxes and three Slack workspaces belonging to different clients, the browser's organizing features stop being the bottleneck and session isolation becomes the problem.

The engine and the extension question

Opera's developer documentation is direct about what sits underneath. As the Opera extensions documentation puts it:

Opera is based on Chromium, which means it is possible to run CRX files in Opera.

For work, that is mostly good news. Web apps that are tested in Chrome, such as Google Workspace, Figma, Notion and most internal admin tools, render the same way in Opera, and the large majority of Chrome extensions can be installed. The documentation also points out that Opera publishes its own list of supported chrome.* APIs, which is worth checking for any extension that the day depends on.

The practical consequence is that switching from Chrome to Opera carries less compatibility risk than switching to a WebKit or Gecko browser. The risk sits elsewhere: in how much of Opera's own interface a given person wants. Opera adds a sidebar, an AI assistant, news and social panels, and a set of default integrations. Most can be turned off, but the first launch shows a busier window than Chrome's.

On a Mac, Opera's macOS download page lists sync with Opera browsers on macOS, Windows, Linux, iOS, Android and Chromebook through a free Opera account, plus a Flow feature for sending files and links between devices.

Tab Islands, Workspaces and vertical tabs

This is where Opera earns its place for heavy tab users. There are three separate features, and they stack.

Tab Islands group tabs automatically. According to Opera's Tab Islands page, the feature is enabled by default: open links from a page and the new tabs form an island next to it, with no setup. Islands can be named, colored, collapsed and expanded. To turn automatic grouping off, open Easy Setup, the three-line icon in the top right, and switch off "Automatically create tab islands". Opera also notes that an island of 20 or more tabs can be summarized with its built-in AI.

Workspaces sit one level higher. The Workspaces page describes them as separate sets of tabs, switched with one click at the top of the sidebar or with hotkeys. Each workspace gets a name and an icon, can be hidden, and can receive tabs sent from other workspaces. A common work setup is one workspace per client or per project, with research tabs grouped inside each one as islands.

Vertical tabs move the tab strip to the left. Opera's vertical tabs page gives two ways to turn them on: open Easy Setup and enable "Use vertical tab strip", or right-click any tab and choose "Use vertical tab strip". Switching back keeps islands, workspaces and pinned tabs exactly as they were, and the strip can be collapsed from the panel icon in the top left to recover screen width.

A concrete setup that works for a typical office week looks like this:

1. Turn on vertical tabs from Easy Setup, then collapse the strip so that only icons show while working.
2. Create one workspace per active project or client, and give each a distinct icon so the sidebar is readable at a glance.
3. Leave Tab Islands on. Research that starts from a single link will group itself, and finished threads can be collapsed instead of closed.
4. Pin the one messenger that matters most in the sidebar, and mute the rest until they are needed.
5. Use Ctrl+Tab to cycle visually through tabs inside the current workspace, and the duplicate tab highlight to clean up before the end of the day.

After a week, the question to ask is simple: did the tab count stop being a source of stress? If it did, the organizing features have done their job.

Together these do more out of the box than Chrome does with its tab groups and vertical tabs. One limit is worth knowing: everything here is organization of tabs. Opera's workspace page does not describe separate logins per workspace, so two workspaces still share the same cookies for the same site.

The sidebar messengers

Opera's integrated messengers page lists WhatsApp, Slack, Discord, Messenger and Telegram as sidebar options. Each one opens in a panel next to the current page, can be pinned to stay visible while working, and can be unpinned with notifications muted until later. Calls, quick replies and file sharing work from the panel.

This is the feature that most clearly targets people who work in the browser. Instead of a separate Slack window and a phone for WhatsApp, the conversation sits beside the document being edited. For one person with one Slack workspace and one WhatsApp account, it removes real friction.

The gap appears with more than one account per service. The sidebar shows one panel per messenger, and Opera's messenger pages describe connecting an account, not several. A freelancer with a separate Slack for each client, or a team lead with a work and a personal WhatsApp, ends up back in tabs or separate apps for the second account.

Free VPN, ad blocker and what they actually cover

Opera's Free VPN page makes specific claims: free, built in, unlimited, and no account required. The details listed are AES-256 encryption, a no-log policy backed by an independent audit, and three locations: the United States, Singapore and the Netherlands, with the fastest chosen automatically if none is picked. It is switched on from the address bar.

For work, the important word on Opera's own pages is "browser". The free VPN protects traffic from Opera, not from the Mac's other apps. Desktop Slack, Mail, Zoom and anything else running outside the browser are not covered. Opera sells a separate VPN Pro for device-wide protection. On public Wi-Fi in a cafe or at a client site, the free VPN is a reasonable layer for browser work; it is not a replacement for a company VPN that internal systems require.

The built-in ad blocker and tracker blocker need no setup. Opera's ad blocker page claims content-rich pages load up to 90% faster with it on. That is Opera's own figure, and the real difference depends heavily on which sites are visited, but blocking ads on news and reference sites does reduce both clutter and page weight noticeably.

Opera, Opera Air, Opera GX and Opera Neon

Opera now publishes several desktop browsers, which confuses many reviews.

• Opera is the main browser this review covers. Free.
• Opera Air is a minimalist variant aimed at focus, also free to use according to its page.
• Opera GX is the variant aimed at gaming.
• Opera Neon is the newest, built around AI agents. Its product page prices the subscription that unlocks the agent features at $19.90 per month, and it includes the same free VPN without a subscription.

For office work, the main Opera browser is the one to evaluate. Air is worth a look for anyone who finds the standard sidebar distracting. Neon is a separate decision about paying for AI agents, not a requirement for using Opera.

Who should switch, and who should not

Opera fits well for:

• Chrome users with 30 or more tabs open most of the day, who want automatic grouping and workspaces without hunting for extensions
• People whose chat happens in one Slack, one WhatsApp and one Discord, and who want those beside their work
• Anyone who wants a free browser VPN for public Wi-Fi without installing anything

Opera fits less well for:

• People who need two or more accounts of the same service signed in at once, across clients or roles
• Teams whose IT department manages Chrome through policies and expects it to be the installed browser
• Users who want the plainest possible interface, although Opera Air addresses part of this

None of these are flaws in Opera so much as limits of the browser model. A browser keeps one set of cookies per profile. Tab Islands, workspaces and sidebars organize what is open, but they do not change who is signed in.

When the problem is accounts, not tabs

The multi-account case is common enough to deserve its own answer. Agencies, freelancers, consultants and anyone managing several brands often run two or three Gmail accounts, separate Slack logins for each client, and admin consoles that do not handle account switching well. In a browser, that usually means multiple profiles, each a separate window with separate extensions and bookmarks to keep in sync.

An app aggregation browser takes a different approach: each web app runs in its own isolated session from the start, so three Gmail accounts and two Slack logins can all stay signed in side by side, and notifications from all of them arrive in one place. Wavebox, Shift, Rambox and Ferdium all work this way, with different free tiers and pricing; the comparison with Shift and the comparison with Ferdium lay out what each includes. A useful way to divide the work is to keep a browser like Opera for research and reading, and give the always-open, multi-account web apps their own place.

What to change first

Install Opera, import the current browser's bookmarks, turn on vertical tabs and set up one workspace per project for a week. If the friction disappears, Opera is the answer. If the friction that remains is signing in and out of the same services, try an app browser such as SpaceDeck for those apps and keep Opera for browsing.