How to pick a Chrome window-layout extension in 2026: 7 split-screen and floating tools
“Split screen” in the Chrome Web Store covers very different products: some tear tabs into several windows and snap them, some only change a window’s size, some float a always-on-top pane, and almost none actually tile panes inside one tab. We searched our database with 20+ keyword groups, found 24 candidates, and reviewed the 7 that lead in users or ratings and represent different approaches—with real praise, real complaints, and advice by scenario.
Source：crx.windseed.app
Sample：310k+ extensions / 530k+ reviews
Deep reviews：7 core products
Snapshot：2026-08-17
Opening takeaways
1. Opening summary: how to choose in this niche
The most common pitfall first, then four takeaways in 30 seconds.
One thing first: “split screen” is not “split inside one tab”
This mismatch drives most one-star reviews in the niche. People install anything named Split Screen expecting one Chrome tab cut into left and right panes, like Vivaldi or Edge. More than 90% of products actually tear the current tabs into several real OS windows and snap them. You get extra windows on the desktop, and you can easily lose Tab Groups or Pinned Tabs.
1You want a true in-tab split
Only PageVS tiles panes inside one tab (up to 36, with scroll sync). It has about 3,000 users and a tiny rating sample—try it for a few days before you depend on it.
2You can live with extra windows
If snapping separate windows is fine, start with Tab Resize (800k users, 4.32). Shortcuts and layouts are the most mature. For a simple two-pane compare, look at Dualless (700k users), but watch the risk of broken tab groups.
3Watch while you work / picture-in-picture
Need a video, slides, or a trading chart on top? Always on Top Window (50k users, 4.78) is the clearest fit and the highest satisfaction in the set.
4Frontend testing and exact sizes
For responsive tests or precise multi-monitor sizing, use Window Resizer (700k users, 4.29 / 2,283 ratings). It has a past controversy about search redirects—check permissions after you install.
Full candidate pool
2. Full candidate pool (24 extensions)
Search method and categories first, so you know the map before you pick.
We searched the database with 20+ keyword groups (split screen, window resize, tile windows, always on top, tab tiler, and more). After de-duplication we hit 24 related extensions. By how they actually work, they fall into four groups.
Tear into separate windowsMost common · most complaints
Split the current tabs into 2–4 real OS windows and snap them. Examples: Tab Resize, Dualless, Split Screen for Google Chrome, Tile Tabs WE.
Resize one window preciselyFor developers
Does not split the page. Changes this one window to a preset size such as 1920×1080 or a phone view. Example: Window Resizer.
Floating / always-on-top paneBest reputation
Turns a tab into a small window that stays on top for video or a comparison chart. Examples: Always on Top Window, Companion Window.
True in-tab panesVery rare
No new windows. Cuts the same tab into panes, with optional scroll sync. Example: PageVS.
Extension
Users
Rating
Ratings
Category
Tab Resize - split screen layouts
800,000
★ 4.32
1,130
Core · split windows
Dualless
700,000
★ 3.99
275
Core · split windows
Window Resizer
700,000
★ 4.29
2,283
Core · resize
Split Screen for Google Chrome
200,000
★ 3.71
406
Core · split windows
Tile Tabs WE
70,000
★ 3.57
112
Core · grid split
Always on Top Window
50,000
★ 4.78
59
Core · always on top
PageVS - Super Split View for Browser
3,000
★ 4.81
16
Core · true in-tab split
Product reviews
3. 7 core products reviewed one by one
Each one has numbers, how it actually works, real praise and complaints (with helpful votes), then who it fits / what to watch.
How it works:One click turns the current tabs into 2 / 3 / 4 separate Chrome windows and snaps them to a preset grid. Custom shortcuts and ratios are supported. It is the oldest and most-used tool in the “split into windows” camp.
Highest-voted praise
“perfect app It's great when working. A very helpful item, well thought out and easy to use. Many options and can also create your own user defined shortcuts”
Youssef Habboubi2018-04-26👍 21
“I switched to Vivaldi for a while and was delighted by their use of side panels. This plugin lets me just that and much more.”
Stav Geffen2019-02-10👍 25
Highest-voted complaints
“Creates new window, not split tabs within a window”
Tùng Trần2025-07-27👍 10
“This is not split screen. We know split screen is 2 tabs in a single tab. This only separates into multiple windows making it worse.”
Xenos2024-10-23👍 26
Best for
People who already use several real Chrome windows, have enough screen space, and want keyboard shortcuts to snap a layout.
Watch out
This is not an in-tab split. If extra windows on the desktop bother you, skip it.
Complaints cluster around “we wanted an in-tab split”
200,000
Users
★ 3.71
406 ratings
How it works:Also tears tabs into real windows and snaps them. It has a loyal following in online classes, where teachers compare slides and student video on the same screen.
Praise
“Now I can see both my screen share and my school kids... this work offline”
Oyshie Ashraf2021-02-18👍 13
“Works well for me when working with several students at the same time.”
Carolyn Pirte2024-02-21👍 5
Sharp, repeated complaints
“This is not what we are asking for. Need inside of 1 Window/Tab, 2 or more Pages.”
Nazmul Hossain2024-09-05👍 35
“Why does it need my BROWSING HISTORY ??”
Zackariyya Sattaur2024-06-03👍 21
Same-code note
If you already have Dual Screens for Chrome (50k users), reviews say the code is almost the same. You do not need both.
Watch out
The score is only 3.71, and many people ask why it needs browsing history. For a more stable sibling, start with Tab Resize.
How it works:Sold as a “fake dual monitor”: two clicks split the current window, and you can save ratios like 3:7, 5:5, or 7:3.
Praise
“I have tried quite a few apps with this same goal in mind but this is my favorite by far... Another nice tool it has is being able to set tabs it opens when you use a certain ratio”
Isilee Amaryllis2016-11-17👍 25
“L'application de rêve pour lire un texte tout en envoyant un e-mail!”
Jean-Philippe C2018-05-31👍 7
High-risk complaints (lost tabs)
“All my tab groups and pinned tabs are gone! I uninstalled immediately.”
Ouguiya Treize2025-05-23👍 16
“I had sorted my tabs into tab groups and it removed them all from their groups. 0/10.”
Kelsey Guo2022-08-28👍 9
Best for
Light use: quickly park two pages at 3:7 or 5:5.
High-risk note
Splitting or merging often breaks Tab Groups and drops pinned tabs, with no undo. Heavy tab-group users should be careful.
How it works:Saves several complex grid layouts (including URLs) and restores them in one click. IT teams often use it to monitor many pages on a big screen.
Praise
“Finally found an extension to do exactly what I want! You can save layouts with urls and toggle toolbars of each tile.”
Harry Lin2018-09-25👍 5
“We were using this tool for many years to monitor our IT resources on a big TV screen... developer had been supporting us for more than a couple months.”
“I used to use this in Firefox, it would actually tile the tabs inside one same window... this just opens your tabs in separate windows and resizes them side to side.”
HJozuéorch Telmdrassfurion2022-06-06👍 4
Best for
Ops and monitoring work that needs a saved “layout + URLs” combo.
Expectation gap
Chrome’s extension APIs cannot do the old Firefox in-window tiles, so it has to open multiple windows.
How it works:Does not split the page. It sets this one window to an exact size (phone / tablet / desktop presets). Developers use it for responsive tests; multi-monitor users use it to park a window precisely.
Developer praise
“allows me to obsessively and precisely arrange windows to maximize the space on my extra-wide screen... primary audience is coders who are testing their responsive websites”
Clint Wrede2013-12-14👍 13
“Must have extension if you have a 4K monitor, or multiple different sized monitors.”
Randy Henry2021-12-14👍 4
Major historical dispute (search redirect)
“Extension works fine, but redirects Google search results to Ecosia without notifying user. Would not install again.”
Past search-redirect controversy — both sides are here
Reports: several high-voted complaints say it quietly sent Google results to Ecosia or Bing. Defense: users such as CJ Winslow say the developer later added a setting to turn that off, and the code is not malware. Advice: after install, check Chrome’s default search engine. If the new-tab page looks wrong, revoke the related permission in extension settings.
How it works:Turns the current tab into a freely moved, resized pane that stays on top—built for watching while you work: video, slides, or a trading chart.
High-score praise
“This is perfect alongside ppt slides I'm studying. I have so much more space for content.”
MikeA2025-11-06👍 2
“I am using it for Tradingview chart to be on top of MT5, and wow, works very nice.”
Mohammad.H Mohammadi2026-07-02👍 1
Almost no complaints
“Whaaat?! Google docs puts this app's icon on all our letters when printing!!! Wish I could post an image of it here. Makes no sense, it's ridiculous.”
Longcrest Company2026-07-01
Similar option
Companion Window (30k users, 4.73) is a backup. Some complaints say the icon sometimes does nothing, so it is a bit less stable.
Pick this if
If you only need a small window pinned on top, install this one. Highest satisfaction in the niche.
How it works:A different idea from the first six: no new windows. Up to 36 resizable panes live in one tab, with scroll sync, cross-pane highlights, reader mode, and saved layouts. When other extensions get one-star reviews saying “this is what I wanted,” this is the shape they mean.
Still few users, and few ratings
Only about 3,000 users and 16 ratings. We did not find many long reviews when we collected data. It does deliver a true in-tab split, but a small sample is not proof it is flawless. Try it for a few days before you rely on it.
Best for
People who refuse extra Chrome windows and insist on tiling inside one tab.
Performance note
Dozens of panes in one tab will tax CPU and memory. Pages with cross-origin limits may not load.
Shared findings
4. Patterns across products
After all seven, these patterns are worth knowing.
1
People mean different things by “split screen” — that is most of the one-star reviews
Most “split screen” extensions actually open several OS windows and snap them. Everyday users hear “split screen” and expect two panes in one tab. That gap shows up again and again in the top complaints for Tab Resize, Split Screen for Google Chrome, and Tile Tabs WE. A true in-tab split is still rare; PageVS is the one doing it here.
2
Split / merge often wipes Tab Groups and pinned tabs
When the browser tears out a new window or merges it back, Chrome Tab Groups and Pinned Tabs are easy to lose. Many high-voted Dualless complaints say one merge scattered every group they had made.
3
Permissions and silent search changes set people off
Users are wary of window managers asking for extra access. Split Screen for Google Chrome was heavily questioned for reading browsing history. Window Resizer has a past dispute about quietly changing the default search engine to Bing or Ecosia. If a tool in this niche starts monetizing, the reaction is loud.
4
Firefox veterans feel the drop
Ports such as Tile Tabs WE often get “it used to tile inside one Firefox window; on Chrome it just opens more windows.” That is a Chrome extension API limit, not a lazy port.
5
Always-on-top tools score much higher than window-splitters
Always on Top Window (4.78) and Companion Window (4.73) sit well above the split-window camp. The promise is simple—“pin one small window on top”—so there is no fight about whether it is an in-tab split, and far fewer complaints.
How to choose
5. Choose by scenario
Match the card to how you actually work.
Scene 1 · One-window only
I refuse a second Chrome window on the desktop
You need 2–4 pages in one tab, plus scroll sync or highlight compare.
👉 Pick PageVSSmall-sample product. Try it before you depend on it.
Scene 2 · Watch while you work / PiP
Keep video / a chart / slides on top
Write or spreadsheet in the main window while a video, lecture, or trading chart sits in the corner.
👉 Pick Always on Top Window4.78 and a clear, stable job.
Scene 3 · Fast multi-window layout
Extra windows are fine; I want a shortcut
Large or multi-monitor setups that need 2–4 windows snapped to a grid.
👉 Pick Tab ResizeProven by 800k users, mature custom shortcuts.
Scene 4 · Frontend / responsive testing
Change one window to an exact size
Test a page at phone, tablet, or 4K sizes.
👉 Pick Window ResizerAfter install, check that the default search engine did not change.
Sources
6. Sources and how we counted
Source：Data comes from crx.windseed.app, our Chrome Web Store database: 310k+ extensions and 530k+ real reviews. Collected 2026-08-17.
How we count：User counts, ratings, and rating totals are a snapshot from that day, not live store numbers.
How we picked quotes：Praise and complaints are sorted by Chrome “helpful” votes, with the original author and date. We did not edit the wording.
