Software Alternatives, Accelerators & Startups

Side Space VS Adblock Plus

Compare Side Space VS Adblock Plus and see what are their differences

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Side Space logo Side Space

The World's First Al Assistant for Your Tabs

Adblock Plus logo Adblock Plus

AdBlock Plus is a browser extension for Firefox, Chrome, Opera, and several other popular browsers that prevents intrusive ads like pop-ups and malicious code from appearing on websites you visit.
  • Side Space
    Image date //
    2025-11-17
  • Side Space
    Image date //
    2025-05-13

An Al-powered vertical tabs manager in your side panel.

An alternative to Arcโ€™s Sidebar and Edgeโ€™s Vertical Tabs โ€” now upgraded with a built-in AI assistant.

Side Space gives you complete control over your browsing experience with powerful vertical tab management and Side Copilot, an AI that helps you research, organize, and automate your workflow directly from the side panel.

๐Ÿš€ How do vertical tabs work?

When vertical tabs are enabled, your open tabs are moved from the top of the browser window to the left side panel. This layout stacks tabs vertically instead of horizontally, giving you more space, better visibility, and easier navigationโ€”especially when working with many tabs.

โœจ Features

  • โšก๏ธ Vertical Tabs Panel โ€” Manage tabs and tab groups efficiently in a clean, space-saving sidebar.
  • ๐Ÿ—‚๏ธ Save, restore, and reorder tabs or tab groups with intuitive drag-and-drop.
  • ๐Ÿ”„ Side-by-side layout that keeps all your open tabs visible at a glance.
  • ๐Ÿ” Fuzzy search to instantly find the tab you're looking for.
  • ๐Ÿงน Suspend tabs to save memory and keep your browser running smoothly.
  • โ˜๏ธ Cloud sync (cross-browser) with a single login.
  • ๐ŸŒ› Dark Mode support.
  • ๐Ÿ’พ Space Backup Solutions

    • ๐Ÿ“‘ Export sessions as JSON
    • โ˜๏ธ Sync to the cloud via login
  • โœจ AI-powered Tab Grouping for automatically organizing related tabs.

  • ๐Ÿ”— Group Guardian automatically groups tabs based on URL patterns.

๐Ÿค– Introducing Side Copilot โ€” Your AI Assistant in the Side Panel

Side Copilot brings AI directly into your browsing workflow:

  • Ask questions about the page you're viewing
  • Research topics with auto-opened results
  • Summarize long articles instantly
  • Organize tabs and windows through natural language commands
  • Trigger automated actions across your browser

Just open AI Chat in the extension and start talking to your browser โ€” it does the rest.

  • Adblock Plus Landing page
    Landing page //
    2023-03-18

Side Space

$ Details
Free Trial $39.0 / One-off
Platforms
Google Chrome Firefox Edge Brave Comet Opera
Release Date
2023 October
Startup details
Country
Hong Kong
Founder(s)
Robert Shaw
Employees
1 - 9

Adblock Plus

Pricing URL
-
$ Details
-
Platforms
-
Release Date
-
Startup details
Country
Germany

Side Space features and specs

  • ๐ŸŒˆ Arc-like Side Panel
    Weโ€™ve built an Arc-like side panel that transforms your tabs into a sleek vertical layout, making it easier than ever to navigate and manage your workspace.
  • ๐Ÿง  Smart AI Grouping
    Itโ€™s not just about organizing tabsโ€”itโ€™s about doing it intelligently. Our AI grouping feature clusters tabs based on content for a streamlined experience. Plus, you have control with our Group Guardian feature, letting you customize tab groupings using URL matches to set your own organizational rules.
  • โ˜๏ธ Spaces & Cloud Sync
    Take productivity to the next level! Save your tabs into different Spaces and we automatically sync them to the cloud. Your organized tabs are accessible across devices, so you can browse seamlessly wherever you are.
  • ๐Ÿค– AI Assistant
    Research, summarize, and organize, chat with your tabs and let Al Assistant help you browse smarter.

Adblock Plus features and specs

  • Blocks Ads
    Effectively blocks a wide variety of ads, including banner ads, video ads, and pop-ups, enhancing the web browsing experience.
  • Improved Speed
    By blocking ads, it can increase the speed at which web pages load, particularly on sites with heavy ad content.
  • Privacy Protection
    Helps to protect user privacy by preventing ad trackers from collecting data on browsing habits.
  • Customizable Filters
    Allows users to create custom filter lists to block specific content or ads from particular websites.
  • Open Source
    The source code is open to the public, allowing for transparency and contributions from the community to improve the product.

Possible disadvantages of Adblock Plus

  • Ad-Blocking Whitelist
    Adblock Plus allows certain 'acceptable ads' to be shown by default, which might not align with user expectations of an ad-free experience.
  • Potential for Website Breakage
    Some websites might not function correctly when ads are blocked, which can disrupt the user experience on those sites.
  • Revenue Impact on Websites
    Websites that rely on ad revenue may experience reduced income, which can affect the quality and availability of free content on the web.
  • Resource Usage
    Running the Adblock Plus extension can consume system resources, potentially impacting browser performance.
  • Complex Configuration
    Customizing filters and settings can be complex for non-technical users, potentially leading to suboptimal use of the tool.

Analysis of Side Space

Overall verdict

  • SideSpace is a well-regarded browser productivity tool that helps users organize their tabs and workspaces efficiently, making it a solid choice for anyone who struggles with tab overload.

Why this product is good

  • Helps organize and group browser tabs into dedicated spaces, reducing clutter
  • Improves productivity by allowing quick switching between different projects or contexts
  • Offers a clean, intuitive interface that's easy to adopt
  • Saves and restores tab sessions so you never lose your place
  • Reduces memory usage by managing inactive tabs effectively

Recommended for

  • Power users who juggle many browser tabs at once
  • Professionals managing multiple projects or clients simultaneously
  • Researchers and students who need to organize reference materials
  • Remote workers seeking better digital workspace organization
  • Anyone prone to tab overload looking to streamline their browsing

Analysis of Adblock Plus

Overall verdict

  • Adblock Plus is generally considered effective for users who want a simple solution to block unwanted ads without much configuration. However, some critics point out that it participates in an 'acceptable ads' program, allowing certain non-intrusive ads to be displayed by default, which may not align with all users' expectations of an ad blocker.

Why this product is good

  • Adblock Plus is a popular browser extension that blocks intrusive ads, which can enhance user experience by speeding up web page loading times and reducing clutter. It also adds a layer of privacy by preventing tracking scripts from loading, and it can help protect users from malicious ads that might contain malware.

Recommended for

    Adblock Plus is recommended for casual internet users looking for a straightforward and easy-to-install ad-blocking solution. It is also suitable for users concerned with online privacy and who prefer not to be tracked by advertisers.

Side Space videos

Side Space 2.0 | The World First AI Assistant for your Tabs

More videos:

  • Demo - Introducing Side Space 1.0

Adblock Plus videos

Adblock Plus: Now Serving You More Ads! - The Know Tech News

Category Popularity

0-100% (relative to Side Space and Adblock Plus)
Chrome Extensions
100 100%
0% 0
Security & Privacy
0 0%
100% 100
Productivity
100 100%
0% 0
Ad Blockers
0 0%
100% 100

Questions & Answers

As answered by people managing Side Space and Adblock Plus.

What makes your product unique?

Side Space's answer

Side Space combines powerful vertical tab management with an integrated AI assistant, that's something no other browser extension offers.

Instead of choosing between a better tab manager or an AI browser, Side Space gives you both in one clean side panel.

What's the story behind your product?

Side Space's answer

I am the kind of person who always ends up with too many tabs, too many windows, and no idea where that one page I read yesterday has gone. I tried a bunch of the new AI browsers, but they all felt like replacements for tools I already rely on. I didnโ€™t want a new browser. I just wanted my existing one to feel less chaotic.

So I built Side Copilot for myself first. It helps me manage tabs, jump between windows, find stuff I opened days ago, and generally clean up the mess I constantly create. The thing that changed everything for me was giving it the ability to understand natural commands. I can tell it to group my research tabs or bring back an article from last week and it actually does it. It also has a simple chat mode for quick summaries or translating a page on the spot.

I realized it solved a real problem for me, so I decided to make Side Copilot completely free. Iโ€™m curious how other heavy browser users feel about this. Would an assistant like this make your browsing less stressful?

Why should a person choose your product over its competitors?

Side Space's answer

  1. The worldโ€™s first AI assistant built for your tabs

Most AI tools only analyze text. Side Copilot controls your tabs, windows, history, and pages using real browser APIs. You can research, summarize, organize, open sites, perform searches, restore sessions, and automate actions โ€” all with natural language.

  1. A true vertical tabs manager, not a browser replacement

You donโ€™t need to switch to Arc or Edge. Side Space turns Chromeโ€™s side panel into a clean vertical tabs system with:

Drag-and-drop tab & group management

Fuzzy search

Memory-saving tab suspension

Saved spaces & session restore

Cloud sync

Dark mode

You get a modern browser experience without leaving Chrome.

  1. Dual AI modes for different tasks

Chat Mode โ†’ instant content analysis (summary, translation, extraction, quick answers)

Agent Mode โ†’ deep automation (organize tabs, clean up windows, run research workflows)

Fast when you need speed, powerful when you need automation.

  1. Page, tab, window, and history tools powered by real browser capabilities

Side Copilot isnโ€™t โ€œjust another chatbot.โ€ It uses more than 20 AI MCP tools built on Chrome Extension APIs:

Tab tools: create, close, group, move

Window tools: tile, arrange, focus

History tools: analyze, find, reopen past pages

Page interaction tools: scroll, navigate, search, capture screenshots

Session tools: restore recently closed tabs/windows

This gives Side Space automation capabilities even AI browsers donโ€™t have.

How would you describe the primary audience of your product?

Side Space's answer

Side Space is designed for anyone who works, researches, or creates directly in the browser โ€” especially those who manage dozens of tabs every day. If the browser is your workspace, this is for you.

Productivity-Driven Professionals

Marketers, PMs, developers, designers, analysts โ€” anyone who needs a smarter, faster way to organize tabs, windows, and workflows.

Power Browsers with Endless Tabs

For users juggling 20โ€“200+ tabs across multiple windows. Side Space brings structure, clarity, and smart automation without forcing you to switch browsers.

AI-Forward Users

If you want to control your browser with natural language, automate tasks, and let Side Copilot handle the heavy lifting, this is your perfect tool.

Researchers & Knowledge Workers

Students, academics, journalists, content creators, and anyone who collects and analyzes information online. Summarize, extract, search, and research pages instantly.

People Who Want Arc/Edge-Style Features โ€” But in Chrome

Enjoy a vertical tabs manager, powerful side panel, and full AI assistant experience without giving up the browser you already love.

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Side Space and Adblock Plus

Side Space Reviews

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Adblock Plus Reviews

The Best Ad Blockers for YouTube 2024
Adblock Plus: AdBlock is a user-friendly free tool that received solid ad-blocking scores during our testing. It also offers a Premium subscription that can block additional nuisances like site notifications, survey requests, and floating videos.
Best Ad Blockers in 2023: Adblock Plus vs AdGuard vs uBlock Origin and More
Not to be confused with AdBlock Plus, AdBlock is a very simple and straightforward extension that offers ad blocking features, and it works admirably. The user interface is as simple as they come, with the option to pause the extension on the website youรขย€ย™re on โ€” useful if a website wonรขย€ย™t let you access it with such an extension enabled.
Best Ad Blockers
Adblock Plus (again, not to be confused with any variations on its name) is a standalone ad blocker thatโ€™s been around for quite some time. It is not the premium version of another ad blocker or a special edition. Adblock Plus is its own application.
22 NextDNS Alternatives
AdBlock Plus claims to be one of the most feature-rich and out-of-the-box ad blockers for smartphones, tablets, and PCs. People love having it because of its excellent adblocking mechanism and capabilities. AdBlock Plus extension is available for users who want to have a customized and controlled web experience. You can remove ads and malware from all the online destinations...
8 BEST Ad Blockers For Chrome In 2020 [Free Pop Up Blockers]
Not only is Adblock Plus free, but it also features acceptable ads. Instead of charging you the user, AdBlock Plus charges large companies who want to be a part of its acceptable ads program, thereby saving you money whilst allowing companies who depend on ad-generated revenue to continue offering you free content for years to come.

Social recommendations and mentions

Based on our record, Adblock Plus seems to be more popular. It has been mentiond 65 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Side Space mentions (0)

We have not tracked any mentions of Side Space yet. Tracking of Side Space recommendations started around Feb 2024.

Adblock Plus mentions (65)

  • How I stay (more) focused with ADHD
    Tip: I use Adblock Plus on desktop, and AdGuard on iPhone and iPad. - Source: dev.to / over 2 years ago
  • [Vent] YouTube forcing adblock removal, here's what you can do!
    Adblock plus => I only use this one with Edge because Opera has a default adblocker of its own, but this is also a very welcome extension and something that can (and will) keep you safe! Source: almost 3 years ago
  • Why are there differences between the EasyList filter lists mirrors!?
    Why doesn't easylist.to link to its own version of the Fanboy's Annoyance List? Why are the lists (and especially the "EasyList Germany") on the mirror (?) of adblockplus.org more up-to-date than on easylist.to? Source: over 3 years ago
  • Problem with popups
    That can be annoying. Do you see them on Flipboard or when you navigate to the actual website of the article? If that's the case, then it would be up to the website that is hosting the article. I would recommend a good popup/ad blocker like adblock plus. Source: over 3 years ago
  • "He gets us" is taken over my feed
    Try AdBlock Plus, gets rid of a ton of junk. https://adblockplus.org/. Source: over 3 years ago
View more

What are some alternatives?

When comparing Side Space and Adblock Plus, you can also consider the following products

OneTab - Whenever you find yourself with too many tabs, click the OneTab icon to convert all of your tabs into a list. When you need to access the tabs again, you can either restore them individually or all at once.

uBlock Origin - Popular and efficient blocker for Chromium, Chrome, Edge, Firefox, Opera, Safari, Thunderbird.

Workona - A better way to work in the browser.

AdGuard - Surf the Web Ad-Free and Safely. Shield up!

tabExtend - Easily save tabs and quickly create notes in your browser

Privacy Badger - Privacy Badger blocks spying ads and invisible trackers. How is Privacy Badger different from Disconnect, Adblock Plus, Ghostery, and other blocking extensions?