Software Alternatives, Accelerators & Startups

Side Space VS AdBlock

Compare Side Space VS AdBlock 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 logo AdBlock

Ad blocker for Chrome, Safari and Opera on desktop and Safari for iOS devices.
  • 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 Landing page
    Landing page //
    2022-03-26

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

Pricing URL
-
$ Details
-
Platforms
-
Release Date
-
Startup details
Country
United States

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 features and specs

  • Improved Browsing Experience
    AdBlock removes intrusive ads, allowing web pages to load faster and users to enjoy a cleaner browsing experience.
  • Enhanced Privacy
    By blocking ads, AdBlock helps reduce tracking by ad networks, thereby enhancing the user's privacy online.
  • Reduced Data Usage
    Since ads often contain large images, videos, or animations, blocking them can significantly reduce data usage, which is beneficial for users with limited bandwidth.
  • Security
    AdBlock can protect users from malicious ads that might contain malware or phishing links.
  • Customization
    AdBlock offers customization options, allowing users to whitelist specific websites and control what types of ads to block.
  • Engaging Gameplay
    AdBlock: The Game offers fun and interactive gameplay that combines the theme of ad-blocking with entertaining mechanics, keeping players engaged.
  • Educational Experience
    The game provides an educational insight into how ad-blocking works and raises awareness of online advertising strategies, making it informative for players.
  • Free to Play
    Players can enjoy AdBlock: The Game for free, making it accessible to a wide audience without any initial financial commitment.
  • Supports Original AdBlock
    Playing the game supports the original AdBlock service, promoting their mission and possibly funding further developments.

Possible disadvantages of AdBlock

  • Hurts Content Creators
    Many websites rely on ad revenue to fund their content. By blocking ads, users may inadvertently reduce the income generated by these sites.
  • Potential Website Breakage
    Some websites may not function properly or fully when ads are blocked, leading to a degraded user experience.
  • Ethical Considerations
    Blocking ads raises ethical questions regarding fair compensation for free content and services provided by websites.
  • Circumvention by Publishers
    Some websites have started using anti-adblock measures, restricting access to their content if they detect the use of ad blockers, forcing users to disable the extension.
  • Resource Usage
    Running AdBlock as a browser extension can increase the consumption of system resources, potentially slowing down the browser.
  • Limited Audience
    The theme and premise of the game may appeal primarily to users already interested in digital advertising or ad-blocking, making its target audience niche.
  • In-Game Advertisements
    Despite being a game about ad-blocking, it might use in-game ads as part of the gameplay mechanics, which could be ironic or off-putting to some players.
  • Potential Over-Simplification
    The game might oversimplify the complexities of internet advertisements and ad-blocking, potentially leading to a misunderstanding of the topic.
  • Derivative Experience
    Players looking for novel or groundbreaking gameplay might find it derivative if the game relies heavily on traditional ad-blocking themes.

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

Overall verdict

  • AdBlock is generally considered a good and reliable choice for users looking to mitigate the annoyance and privacy concerns associated with online advertising. It is easy to install, widely supported across different browsers, and offers customizable options for allowing certain ads or whitelisting specific websites.

Why this product is good

  • AdBlock (getadblock.com) is effective for users who want to block intrusive advertisements, enhance browsing speed, and increase online privacy. It is designed to remove ads from websites, thus improving the overall user experience on the internet. Additionally, blocking ads can lead to faster loading times and reduced data consumption.

Recommended for

    AdBlock is recommended for individuals who frequently browse the internet and wish to have a cleaner, more streamlined viewing experience without ads. It is particularly useful for those concerned about online privacy and data usage, or for anyone who is frustrated with the distraction caused by excessive advertising on websites.

Side Space videos

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

More videos:

  • Demo - Introducing Side Space 1.0

AdBlock videos

Dear AdBlock, Kiss My A$$!

Category Popularity

0-100% (relative to Side Space and AdBlock)
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.

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

Side Space Reviews

We have no reviews of Side Space yet.
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AdBlock Reviews

  1. Easy to use and makes browsing cleaner

    I've been using AdBlock for a while now, and I really like it. It blocks annoying pop-ups, video ads, making websites load faster and look cleaner. Itโ€™s easy to use and works seamlessly in the background.


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Social recommendations and mentions

Based on our record, AdBlock seems to be more popular. It has been mentiond 24 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 mentions (24)

  • Are there any good and free ad blocker??
    Https://getadblock.com/en/ This one works fine with me on Opera GX. You can go to your browser's web store, like the Chrome Web Store and download one. If you switch to a browser like Brave or Opera GX, you can have a built-in one, which is easier. Source: about 3 years ago
  • R.I.P soap2day
    Interesting, I usually don't get pop ups on soap2day or that site(only if I miss click on the play button or something similar sometimes). I use an ad blocker though so maybe thats why. I get WAY more when I use my iphone though. Source: about 3 years ago
  • Help!
    If I were you I would contact official steam support at the Steam Help Page, maybe they'll be able to help you, make sure to use an AD-Block or a VPN to stay safe out here on the internet. Wish you good luck. Source: about 3 years ago
  • 1337x saying I need a VPN?
    This issue just appeared today, I've never seen it before. I'm using NordVPN with kill switch enabled, and I already checked with https://www.iplocation.net/ and http://checkmyip.torrentprivacy.com/ to confirm I'm routing all traffic through the VPN. I tried getting a new IP from Nord, but it still didn't fix it. I'm using this ad block plugin in chrome https://getadblock.com/en/ , so I don't think this is an ad. Source: over 3 years ago
  • With all the talk of blocking the Tbell Pete and, what do you all do for other ads?
    I have an AdBlock extension for my Chrome browser on desktop: https://getadblock.com/en/. Source: almost 4 years ago
View more

What are some alternatives?

When comparing Side Space and AdBlock, 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.

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.

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

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