Which browsers does Side Space support?

Side Space is distributed as an extension for Chromium-based browsers, and its own materials name Chrome, Brave and Edge.

How much does Side Space cost?

The store page currently lists a Side Space Lifetime License at $79.00, a one-time purchase handled through Lemon Squeezy, with a Subscribe option also shown.

Does Side Space help when I have too many tabs?

Yes. It replaces the horizontal tab bar with a vertical sidebar and adds AI-assisted grouping, so many tabs stay visible and neatly clustered instead of shrinking to unreadable stubs.

Is the lifetime license really one-time?

The lifetime license is a one-time payment, so you pay once rather than renewing monthly; the store page also displays a Subscribe option.

The tracked URL is the checkout store on Lemon Squeezy, where the lifetime license is sold; browsing the extension store listing or the vendor's site is the best way to check current availability before purchase.

What is Side Space's monthly traffic and growth trend?

Side Space currently receives 0 monthly visits, with a month-over-month traffic change of +0 (0% growth rate). Its primary source market is Global (— share), including 0 direct visits/mo and 0 organic search visits/mo.

Is Side Space free? What is its pricing model?

Side Space operates on a Freemium, Paid pricing model. Side Space is sold through the Side Space Store on Lemon Squeezy. The storefront currently shows a Side Space Lifetime License at $79.00 as a one-time purchase, and also displays a Subscribe option. Because it is a paid, one-time-license product rather than a metered subscription, there are no per-seat monthly charges advertised on the tracked page. Supported billing and checkout platforms include: not listed.

Side Space — AI Tool Traffic (0/mo), Pricing, API & Alternatives

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About Side Space

Vertical tab sidebar

Move your open tabs out of the cramped top bar and into a full-height sidebar where titles and favicons are easy to read.

AI-powered tab grouping

Let the extension cluster related tabs automatically with AI, so research or project sessions stay grouped without manual sorting.

Nesting and drag-and-drop

Nest tabs under parent tabs and drag them between groups to mirror how you actually think about your work.

Chrome, Brave and Edge support

Built for Chromium-based browsers including Chrome, Brave and Edge, so your setup travels across the browsers you already use.

One-time lifetime license

Buy once through the Lemon Squeezy storefront instead of paying a recurring subscription, with a Subscribe option available if you prefer.

Modern browsers hide most of your work behind a single horizontal strip of shrinking tabs. Side Space takes the opposite approach: it moves the tab list into a vertical sidebar, where titles, favicons and grouping stay legible no matter how many pages you have open. The result is a browser that reads more like a file tree than a stack of postage stamps.

The extension leans on AI-assisted grouping to keep things tidy. Instead of manually dragging every new tab into place, related pages get clustered together, and you can refine the arrangement with nesting and drag-and-drop when you want a specific structure. It is distributed for Chromium-based browsers, with Chrome, Brave and Edge named as supported targets.

Side Space is sold as a one-time lifetime license through the Side Space Store, which is hosted on Lemon Squeezy and currently lists the lifetime license at $79.00, alongside a Subscribe option. That model suits people who keep a lot of tabs open and prefer a single purchase over a recurring fee.

High-Impact Use Cases for Side Space

Researchers and analysts

Manage research-heavy sessions

Keep dozens of reference pages open during a project and let AI grouping cluster them by topic so nothing gets lost.

Developers and freelancers

Organise project tabs visually

Separate client work into nested groups and switch between them quickly without hunting through a crowded top bar.

Everyday browser users

Reduce tab overload

Read full page titles in a sidebar instead of guessing from truncated tabs, which helps with accessibility and speed.

Lifetime-license buyers

Pay once, use across browsers

Buy a single lifetime license in one currency and install the extension on the Chromium browsers you already run.

Rank	AI Tool	Monthly Visits	MoM Growth	Direct traffic share	Pricing	Head-to-Head
●	Side Space	0	0%	—	Freemium, Paid	Current
1	Sider	2.64M	-10.6%	64% direct	Freemium	vs Sider
2	Siket	1.56K	+32%	29% direct	Freemium	vs Siket
3	Phew AI Tab	792	+1.5%	41% direct	Free Trial, Paid	vs Phew AI Tab
4	Tabbit Browser	670.98K	-30.2%	85% direct	Freemium	vs Tabbit Browser
5	Kome AI	174.91K	-6.5%	30% direct	Freemium	vs Kome AI
6	Dia Browser	1.25M	+108.4%	59% direct	Free	vs Dia Browser

Side Space

Why Choose Side Space

Watchouts & Trade-offs

Multi-Angle Perspectives

Traffic Acquisition Breakdown