Slimjet vs Vivaldi (2026): which should you pick?
As of Nov 13, 2026, Vivaldi grades higher than Slimjet: 3.8 against 3.0 out of 4.0.
Checked Oct 5, 2026 and Nov 13, 2026 · graded Oct 10, 2026 and Nov 13, 2026 by ToolGPA
Vivaldi grades higher on features, ease of use and platforms. They get the same grade on value for money and the free plan.
Price, platforms and features side by side. The table says where each price was read and when.
Which one is for you
Pick Slimjet if
- Fits if you want an ad blocker and proxy switcher without hunting for extensions
- Works for downloading streaming video from inside the browser
Look elsewhere if
- Skip it if you want the Mac build to match Windows: the Mac download is version 45.0.1.0 from January 2025, Windows and Linux are at 51.0.3.0
- Not for you if you need a phone version, as none is listed
- Watch out: the ad-blocking and privacy claims are the vendor's own
- Tight if you want a paid support route: the company asks only for donations
Pick Vivaldi if
- Fits if you keep dozens of tabs open and want them stacked, split and sorted
- Works for people who want mail, calendar and feeds in the same window as their tabs
Look elsewhere if
- Skip it if you want a chatbot or page summaries built in, because Vivaldi leaves AI out on purpose
- Not for you if you want the free VPN on your phone, as it only works in the desktop browser
- Pricey if you want faster VPN speeds, more servers or extra devices, which need a paid Proton VPN plan
- Watch out: new installs come with partner bookmarks and search engines that earn Vivaldi revenue until you replace them
- Not for you if your Mac is older than macOS 13, which the current download needs
How we grade them
| 3.0GPASlimjetVery good | 3.8GPAVivaldiExcellent | |
|---|---|---|
| Value for money | AFreeware with no registration, and donations are optional, so under 60% of this category's cheapest quarter. | AFree on every platform with no paid tier at all, and the reason is on Vivaldi's own blog: it earns from search and bookmark partner deals, a cut of Proton VPN upgrades and donations, rather than from you. There's nothing to buy and nothing withheld. |
| Free plan and trial | AThe whole browser is free to use with no registration and nothing locked behind a plan. | AFree outright, with mail, calendar, feed reader, notes, the ad and tracker blocker, end-to-end encrypted sync, and Proton VPN on the desktop with no ads or data limit. New installs arrive with partner bookmarks you can swap out. |
| Features | CAd blocker, proxy switcher, form filler, video download and screenshots, but the ad-blocking and privacy claims are the vendor's own. | AIt builds in an email client for several accounts, a calendar, a feed reader and notes, with an ad blocker, two-level Tab Stacks, tiling, Workspaces and Command Chains that fire a string of commands off one keystroke. The deliberate gap is AI: there's none, by choice. |
| Ease of use | BNo rating on record. You install a Chromium browser and it works, with the extras already in the toolbar. | A4.73 from about 4,400 App Store ratings. You can leave it exactly as it comes, or change shortcuts, themes and layout until it fits. There's a lot in here, so give it an evening. |
| Platforms and integrations | CWindows, macOS and Linux only. No mobile versions are listed, and no integrations. | BWindows, Mac, Linux, Android and iPhone, with history, passwords, bookmarks, tabs and notes synced end-to-end encrypted. Computers and both phones is a B here, because our top mark also wants a web app and a browser isn't one, and Proton VPN is the only integration listed. |
| Best for | a free Chromium browser with built-in extras | tab hoarders who like to customise everything |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Slimjet and Vivaldi. How we grade
Price against what you get
Slimjet has no paid plan and scores 2.3 out of 4 on features, ease of use and platforms. Vivaldi has no paid plan and scores 3.7.
Vivaldi scores higher for the same starting price. Of the other browsers on the chart, none scores higher than Slimjet for less, and none scores higher than Vivaldi for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
- Vivaldi is end-to-end encrypted, according to its own site.
- Slimjet also covers ad and tracker blocking.
- Vivaldi also covers notes, calendar, email client, screenshots and rSS reader.
In commonFree planWindowsmacOSLinuxWeb browser
At a glance
| Slimjet | Vivaldi | |
|---|---|---|
| Pricing | Free | Free |
| Starts at | Free | Free |
| Free plan | Freeware with no registration. Donations are optional. | Vivaldi is free on desktop and mobile with no paid tier. The company funds itself through search engine and bookmark partner deals, a share of Proton VPN upgrades and donations. |
| Free trial | None listed | None listed |
| macOS | ||
| Windows | ||
| Linux | ||
| iOS | ||
| Android | ||
| Made by | FlashPeak Inc. | Vivaldi Technologies |
| Price read from | slimjet.com | apps.apple.com |
| Checked | Nov 13, 2026 | Oct 5, 2026 |
Worth knowing
Slimjet
- The Mac download listed on the download page is version 45.0.1.0, dated January 2025, while the Windows and Linux stable release is 51.0.3.0.
- No mobile versions are listed.
- The ad-blocking and privacy claims are the vendor's own.
Vivaldi
- Proton VPN for Vivaldi works only in the desktop browser, and faster speeds, more servers and extra devices need a paid Proton VPN plan.
- New installs come with partner bookmarks and search engines that earn Vivaldi revenue. They can be replaced.
- Vivaldi deliberately leaves out an AI assistant, so there is no built-in chatbot or page summarizer.
- The current Mac download requires macOS 13 or later.
Key features
Slimjet
- Built-in ad blocker
- Blocks ads without plugins or setup, according to the vendor.
- Chromium base
- Rebuilt from the open-source Chromium project, with the vendor saying it sends no usage data back to Google.
- QuickFill and autofill
- A form filler that opens a page and signs in in one step, plus autofill from stored identity information.
- Proxy switcher
- Define several proxies, including SOCKS5, and switch between them from the browser.
- Video download and screenshots
- Downloads streaming videos with an option to extract the audio, and saves a screenshot of an entire page.
- Customizable toolbar
- Toolbar buttons can be added or removed for quick access to features such as translation and weather.
Vivaldi
- Mail, Calendar and Feed Reader
- A built-in email client handles several accounts, mailing lists and feeds in one inbox, next to a private calendar and a feed reader that does not rank items by algorithm.
- Tab Stacks, tiling and Workspaces
- Tabs group into two-level Tab Stacks, open side by side in a split-screen view, and sort into Workspaces for switching between categories of tabs.
- Ad and tracker blocker
- A blocker for ads and trackers is built into the desktop and mobile browsers, so no extension is needed to remove them.
- End-to-end encrypted Sync
- Browsing history, passwords, bookmarks, tabs and notes sync between desktop and mobile devices, protected by end-to-end encryption.
- Proton VPN for Vivaldi
- An opt-in VPN from Proton is built into the desktop browser. It is free with no ads or data limits after signing in with a Vivaldi account.
- Customization and Command Chains
- Shortcuts, themes and features can be personalized, mouse gestures trigger actions, and Command Chains run a custom sequence of commands from one keystroke or gesture.
Plans
Slimjet
Free$0
Freeware with no registration. Donations are optional.
Vivaldi
Free$0
The full browser on Windows, macOS, Linux, Android and iOS, including mail, calendar, feed reader, sync and the free tier of Proton VPN on desktop.
Common questions
Which is cheaper, Slimjet or Vivaldi?
As of Nov 13, 2026, both Slimjet and Vivaldi are free to use.
Which has a free plan, Slimjet or Vivaldi?
As of Nov 13, 2026, both Slimjet and Vivaldi have a free plan.
Which platforms do Slimjet and Vivaldi run on?
As of Nov 13, 2026, only Vivaldi lists iOS and Android apps. Both list macOS, Windows and Linux apps. A platform missing from a listing is one its maker's pages did not mention.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.