Software Alternatives, Accelerators & Startups

Webflow VS Side Space

Compare Webflow VS Side Space and see what are their differences

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Webflow logo Webflow

Build dynamic, responsive websites in your browser. Launch with a click. Or export your squeaky-clean code to host wherever you'd like. Discover the professional website builder made for designers.

Side Space logo Side Space

The World's First Al Assistant for Your Tabs
  • Webflow Landing page
    Landing page //
    2024-07-09
  • 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 Arc’s Sidebar and Edge’s Vertical Tabs — 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.

🚀 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 navigation—especially when working with many tabs.

Features

  • ⚡️ Vertical Tabs Panel — Manage tabs and tab groups efficiently in a clean, space-saving sidebar.
  • 🗂️ Save, restore, and reorder tabs or tab groups with intuitive drag-and-drop.
  • 🔄 Side-by-side layout that keeps all your open tabs visible at a glance.
  • 🔍 Fuzzy search to instantly find the tab you're looking for.
  • 🧹 Suspend tabs to save memory and keep your browser running smoothly.
  • ☁️ Cloud sync (cross-browser) with a single login.
  • 🌛 Dark Mode support.
  • 💾 Space Backup Solutions

    • 📑 Export sessions as JSON
    • ☁️ Sync to the cloud via login
  • AI-powered Tab Grouping for automatically organizing related tabs.

  • 🔗 Group Guardian automatically groups tabs based on URL patterns.

🤖 Introducing Side Copilot — 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 — it does the rest.

Webflow

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

Side Space

$ Details
Free Trial $39 / 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

Webflow features and specs

  • Design Flexibility
    Webflow provides an intuitive visual interface that allows designers to create highly customized and responsive websites without writing code.
  • Integrated CMS
    Webflow includes a built-in CMS that allows users to easily manage dynamic content, making it ideal for blogs, portfolios, and other content-rich sites.
  • SEO Capabilities
    Webflow offers robust SEO tools, including custom meta tags, alt text for images, and clean code output, which can help improve search engine rankings.
  • E-commerce Support
    Webflow provides comprehensive e-commerce features, including product management, checkout processes, and payment gateways, suitable for small to medium-sized online stores.
  • Hosting and Performance
    Webflow offers high-performance hosting with fast loading times, SSL, and global CDN, ensuring websites are secure and perform well.
  • No-Code Platform
    It empowers non-developers to build and maintain websites, breaking down barriers between design and development through its visual development platform.
  • Custom Interactions and Animations
    Webflow allows the creation of sophisticated animations and interactions directly in the designer, enhancing user experience and engagement.

Possible disadvantages of Webflow

  • Learning Curve
    Although it's a no-code platform, Webflow's extensive feature set can be overwhelming for beginners, requiring a significant amount of time to become proficient.
  • Cost
    Webflow's pricing can be relatively high compared to other website builders, especially for e-commerce plans and sites with large amounts of CMS items.
  • Limited Plugins
    Webflow has fewer third-party plugins and integrations compared to platforms like WordPress, which may be limiting for some users needing specific functionalities.
  • Custom Code Limitation
    While Webflow supports custom code, there are limitations on what can be achieved without full access to backend code, which may hinder more complex customizations.
  • E-commerce Scale
    While suitable for small to medium businesses, Webflow's e-commerce capabilities may not be sufficient for large-scale online stores with extensive requirements.
  • Export Restrictions
    Exported code from Webflow can be difficult to maintain if you choose to leave the platform, as the exported files may not easily integrate with other CMSs or platforms.

Side Space features and specs

  • 🌈 Arc-like Side Panel
    We’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.
  • 🧠 Smart AI Grouping
    It’s not just about organizing tabs—it’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.
  • ☁️ 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.
  • 🤖 AI Assistant
    Research, summarize, and organize, chat with your tabs and let Al Assistant help you browse smarter.

Analysis of Webflow

Overall verdict

  • Webflow is a strong platform for those who want to create visually appealing, responsive websites without delving deeply into coding. Its powerful features and intuitive design interface make it particularly appealing to designers who want more control over their creative process. However, it may have a learning curve for those new to web design or those accustomed to more code-heavy development environments.

Why this product is good

  • Webflow is considered a good choice for web design and development because it combines the convenience of a visual design tool with the power of a CMS and the flexibility of custom code. It allows designers to create responsive websites without the need for extensive coding knowledge, while also offering the ability to add custom interactions and animations. The platform provides a comprehensive range of hosting services, SSL, and backups, which simplifies site management. The ease of use, coupled with advanced customization options, makes it a preferred choice for many freelancers, agencies, and businesses.

Recommended for

  • Designers looking to quickly prototype and develop websites.
  • Businesses seeking a platform that combines design flexibility with robust hosting features.
  • Agencies seeking a scalable solution for client projects.
  • Freelancers who want to offer end-to-end web design and hosting services.
  • Individuals or businesses looking for a CMS that supports custom integrations and interactions without extensive back-end development.

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

Webflow videos

Webflow Review: Excellent Custom Design Tool

More videos:

  • Review - Building a site in Webflow - First impressions review!
  • Review - Squarespace VS Webflow: Website Building Platform Review

Side Space videos

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

More videos:

  • Demo - Introducing Side Space 1.0

Category Popularity

0-100% (relative to Webflow and Side Space)
Website Builder
100 100%
0% 0
Chrome Extensions
0 0%
100% 100
CMS
100 100%
0% 0
Productivity
0 0%
100% 100

Questions & Answers

As answered by people managing Webflow and Side Space.

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 didn’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. I’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 world’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 — all with natural language.

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

You don’t need to switch to Arc or Edge. Side Space turns Chrome’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 → instant content analysis (summary, translation, extraction, quick answers)

Agent Mode → 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 isn’t “just another chatbot.” 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 don’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 — 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 — anyone who needs a smarter, faster way to organize tabs, windows, and workflows.

Power Browsers with Endless Tabs

For users juggling 20–200+ 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 — 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 Webflow and Side Space

Webflow Reviews

  1. Amazing

    Designing websites with Webflow has been an absolute delight. Its visual interface makes the design process intuitive and efficient. The drag-and-drop functionality for elements is a real time-saver, and the real-time preview allows for instant feedback. Customizing designs to be responsive for different devices is a breeze. Webflow's ability to handle complex animations without code is impressive. All in all, Webflow has made website creation a smooth and enjoyable process. Definitely a game-changer for web design!

    Competitors: Tilda

Comparing 9 WordPress alternatives & competitors in 2024
Webflow’s visual, composable CMS is feature-complete right out of the box. With native integrations, optimization tools, and managed hosting, you can build, launch, and iterate your website at scale. Webflow also vets Apps built by our community, so you can trust apps that you install — with no need to update software or manage outdated plugins.
Source: webflow.com
19 Best WordPress Alternatives in 2025
Webflow offers more advanced design and animation capabilities than WordPress, allowing for custom-built websites without coding. Pixpa and Squarespace offer advanced portfolio management, e-commerce, and client gallery features tailored for creatives.
Source: www.pixpa.com
The 17 Best Wix Alternatives (2024) Who Else Can You Build Your Website With?
Webflow isn’t for everyone. It’s focused on designers and developers, so the user interface can be overwhelming to beginners. However, their designs are slick and they’re not afraid to show off their website builder: NASA uses it, and Webflow built their own website with the platform.
Top 10 Web Content Management Systems
Webflow is another unique CMS option based on the fact that it does not feature a single line of code anywhere for the user to bother with. Instead, it takes it upon itself to fully cover every single modification that a user may need as part of its preconfigured content management options. The UI is also designed with utility in mind. Whereas Wix also does not feature codes...
Source: cloudzy.com
Top No Code Website Builders in 2023
Webflow is an ideal option for designers and developers wanting to create custom websites with no code. Users can build a website while maintaining complete design control, leveraging advanced customization options, such as CSS and HTML editing.

Side Space Reviews

We have no reviews of Side Space yet.
Be the first one to post

Social recommendations and mentions

Based on our record, Webflow seems to be more popular. It has been mentiond 142 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.

Webflow mentions (142)

  • Agency stole bestselling author's book, used AI to relaunch as their own
    You tell me: https://webflow.com/@qontour?msockid=0946eab0f6bf6a55192dfccaf7bf6b3f If that doesn't look like a marooned freelancer down on their luck I don't what does. I mean, what's your read on this? Is this a person who secretly hates the book and the author and re-published its contents because he knows that people who have the content will never, ever purchase a book, no matter how much they like it? And he... - Source: Hacker News / 3 months ago
  • Add Authentication and RBAC to a Webflow App
    Authentication and authorization are essential for controlling user access and actions within applications, ensuring the right people can do the right things. However, implementing these features can be complex and error-prone, especially in Webflow, where server-side logic isn't easily accessible. Ineffective management of sessions and user roles can expose your application to security vulnerabilities. - Source: dev.to / 5 months ago
  • Death to Scroll Fade
    Https://webflow.com/ is what I blame for the fade-in on scroll module. 15 years ago it did look very polished, boutique, professional. Now that it's a module everyone can do, everyone literally does it for every module. Also there's tailwind that likely has a module for all the modules in webflow. - Source: Hacker News / 6 months ago
  • What is the Most Effective AI Tool for App Development Today?
    Bubble is a prime example. Jason Rowe, Marketing Specialist at Hello Electrical, states, "Bubble is a powerful no-code platform that integrates AI tools seamlessly, enabling developers and non-developers alike to build fully functional web applications without writing complex code." It supports AI plugins for chatbots and data analysis, ideal for prototyping e-commerce or workflow apps. - Source: dev.to / about 1 year ago
  • 16 Best CMS Platforms for Websites in 2025
    Webflow combines power of visual design with a full-featured CMS. It’s ideal for designers and front-end developers who want full control over website layout and interactions, while still managing content through clean, no-code interface. - Source: dev.to / about 1 year ago
View more

Side Space mentions (0)

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

What are some alternatives?

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

WiX - Create a free website with Wix.com. Customize with Wix' website builder, no coding skills needed. Choose a design, begin customizing and be online today

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.

SquareSpace - Squarespace is the easiest way for anyone to create an exceptional website. Pages, galleries, blogs, e-commerce, domains, hosting, analytics, 24/7 support - all included.

Workona - A better way to work in the browser.

Framer - 🔥 Design real websites right on the canvas.

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