Software Alternatives, Accelerators & Startups

Side Space VS Box

Compare Side Space VS Box and see what are their differences

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Side Space logo Side Space

The World's First Al Assistant for Your Tabs

Box logo Box

Box offers secure content management and collaboration for individuals, teams and businesses, enabling secure file sharing and access to your files online.
  • 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.

  • Box
    Image date //
    2025-01-11

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

Box

Website
box.com
$ 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.

Box features and specs

  • Storage Capacity
    Box offers generous storage options, including unlimited storage for business plans, allowing organizations to handle large amounts of data seamlessly.
  • Collaboration Tools
    Box provides robust collaboration features, enabling multiple users to work on documents simultaneously, leave comments, and manage projects efficiently.
  • Security Features
    Box includes advanced security measures such as encryption, access controls, and compliance certifications (e.g., HIPAA, GDPR) to ensure data safety.
  • Integrations
    Box integrates with numerous third-party applications including Microsoft Office 365, Google Workspace, Salesforce, and Slack, making it versatile for various workflows.
  • User-friendly Interface
    Box has a clean and intuitive user interface, which simplifies the user experience for both new and seasoned users.
  • File Versioning
    Box keeps a history of file versions, so users can easily revert to previous versions if necessary.
  • Mobile Accessibility
    Box offers mobile apps for iOS and Android, allowing users to access files and collaborate on the go.

Possible disadvantages of Box

  • Cost
    Box can be relatively expensive compared to other cloud storage solutions, particularly for small businesses and freelancers.
  • File Size Limitations
    Box has file size upload limits, which may be restrictive for users needing to upload very large files.
  • Complexity for Beginners
    While feature-rich, Box's extensive functionalities can overwhelm new users who may face a steep learning curve.
  • Limited Offline Access
    Although Box provides offline access to files, its capabilities can be limited and sometimes unreliable compared to competitors.
  • Syncing Issues
    Some users have reported occasional issues with file syncing, which can disrupt workflow.
  • Customer Support
    While Box offers customer support, some users have reported that response times and the quality of support could be improved.

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

Side Space videos

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

More videos:

  • Demo - Introducing Side Space 1.0

Box videos

Box Cloud Storage Review

More videos:

  • Review - I ~Honestly~ Review 8 Popular Subscription Boxes
  • Review - Butcher Box Unboxing & My Honest Review

Category Popularity

0-100% (relative to Side Space and Box)
Chrome Extensions
100 100%
0% 0
Cloud Storage
0 0%
100% 100
Productivity
100 100%
0% 0
File Sharing
0 0%
100% 100

Questions & Answers

As answered by people managing Side Space and Box.

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

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Box Reviews

Best Top 12 MEGA Alternatives in 2024
For businesses and enterprises, Box provides scalable, enterprise-level cloud storage with robust collaboration and productivity features. It's a credible alternative for those seeking a professional solution.
The Best iPhone Transfer & Manager Software for 2022
Whether you have an iPhone or any other device, one of the options you can check out is Box. The designers of Box say that their unique selling point is the simplicity of the software. For instance, all you need, to transmit files of any size to anywhere, is a link. This means that you donโ€™t necessarily need a Box account to use the software.
Google Drive alternatives: Best picks
With Box, you can create files that will instantly be shared with your teammates. They can then edit and comment on your documents in real time. The Box is probably one of the most integrated apps on this list, too. With over 1,000 leading software providers like Office 365, Salesforce and Adobe Sign, your teammates will be able to edit documents without leaving the...
Source: nordvpn.com
13 Best Free Dropbox Alternatives for File Sharing
Box provides enhanced features such as dedicated phone support, encrypted data transfer and storage. You can also integrate it with Salesforce.com and Google Apps. In addition, you can access it through tablets, Android phones, Blackberry, iPad and iPhone. They also have partnerships with mobile companies for apps which allow users to easily access their services. Box...
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Top 11 Best Dropbox Alternatives in 2020: Which Is The Most Secure?
An additional metric for your review could be resources consumed by each program. DropBox is notorious for gobbling up a lot of your free memory. As I type this, it is using 143 threads and 357MB of my 8GB RAM on a MAC and it is not performing a synch. I would love to know which of your top choices was less RAM hungry than DropBox. It is the major reason I am looking to...

Social recommendations and mentions

Based on our record, Box seems to be more popular. It has been mentiond 93 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.

Box mentions (93)

  • Ask HN: Who is hiring? (February 2025)
    Box | http://box.com | San Francisco Bay Area (US) | Warsaw (PL) | HYBRID Box, Inc. (NASDAQ: BOX) develops and markets cloud-based content management, collaboration, and file sharing tools for businesses. Several roles available spanning frontend and backend segments, mid-career reliability, observability, database, and productivity engineering roles. http://careers.box.com. - Source: Hacker News / over 1 year ago
  • Sharepoint Alternatives?
    I've used box.com with pretty good results, but expect to pay through the nose for the privilege. Source: over 2 years ago
  • I NEED HELP
    So I have all my mountain goats stuff on my Spotify local files, I found a random comment here from like 4 years ago with this guys box.com storage collection of all of his mountain goats songs, recently the link stopped working :( if anyone has it (i know its a pretty niche ask) I would love to have it back. Source: about 3 years ago
  • Now that Google Drive is starting to limit, what's your migration plan?
    Alright. Mind if I check with you a couple weeks from now to see how this turns out for you? I've never heard of box.com. I'm checking out their website now. Source: about 3 years ago
  • What is everyoneโ€™s opinion on these demos getting leaked?
    You would be surprised how stupid Label employees can be, they even give stuff that is "confidential" to unpaid interns to post on their internal pages like box.com or their disco.ac pages. I've seen so many demos, instrumentals and albums posted somewhere public because they got someone to do a half assed job at it. Source: about 3 years ago
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What are some alternatives?

When comparing Side Space and Box, 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.

Dropbox - Online Sync and File Sharing

Workona - A better way to work in the browser.

Google Drive - Access and sync your files anywhere

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

Microsoft OneDrive - Secure access, sharing & file storage