Software Alternatives & Startups

Side Space VS Plot Agents

Compare Side Space VS Plot Agents and see what are their differences

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Side Space logo Side Space

The World's First Al Assistant for Your Tabs
Plot Agents - Transform your data into stunning charts instantly. No coding required. Create 200+ types of charts with AI-powered tools.
  • 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.

Not present

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

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.

Plot Agents features and specs

  • AI-Assisted Story Development
    Plot Agents uses AI to help writers brainstorm, outline, and develop plots, which can speed up the creative process and help overcome writer's block.
  • Structured Approach to Writing
    The platform likely offers frameworks or templates for story structure, helping writers organize their narratives more systematically than starting from a blank page.
  • Time-Saving for Ideation
    By generating plot ideas and suggestions quickly, the tool can save writers significant time during the early brainstorming and outlining stages of a project.
  • Accessible Entry Point for New Writers
    For beginners who may struggle with story structure, having an AI agent to guide plot development can lower the barrier to entry for creative writing.
  • Potential for Iterative Refinement
    AI tools like this often allow users to iterate on generated content, tweaking and refining plot suggestions until they fit the writer's vision.

Possible disadvantages of Plot Agents

  • Limited Brand Recognition
    As a relatively niche or new tool, Plot Agents may lack the established reputation, community, and third-party reviews that more well-known writing tools have.
  • Potential for Generic Output
    AI-generated plots can sometimes feel formulaic or derivative, requiring significant human editing to make the story feel original and personalized.
  • Dependency Risk
    Relying heavily on AI for plot generation might hinder a writer's own creative growth and problem-solving skills over time.
  • Pricing and Value Uncertainty
    Without widespread user feedback, it's unclear whether the subscription or pricing model offers good value compared to alternative AI writing assistants.
  • Possible Learning Curve for Integration
    Incorporating AI-generated plots into an existing writing workflow or software stack may require additional adjustment and may not integrate seamlessly with other tools.

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 Plot Agents

Overall verdict

  • Plot Agents appears to be a niche AI-powered writing tool aimed at helping authors and screenwriters develop plots, but I don't have verified, up-to-date information confirming its current quality, reliability, or user satisfaction since I lack direct access to real-time reviews or the site itself.

Why this product is good

  • May offer AI-assisted brainstorming for story plots and structure
  • Could save time for writers stuck on plot development
  • Potentially useful for outlining and organizing narrative ideas
  • May cater specifically to fiction writers and screenwriters

Recommended for

  • Novelists seeking plot inspiration or structure assistance
  • Screenwriters looking for AI brainstorming tools
  • Writers experiencing creative block on story direction
  • Content creators wanting quick plot outlines
  • Note: Verify current reviews, pricing, and features directly on the site or through recent user feedback before committing, as I cannot confirm real-time details about this specific service.

Side Space videos

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

More videos:

  • Demo - Introducing Side Space 1.0

Plot Agents videos

No Plot Agents videos yet. You could help us improve this page by suggesting one.

Add video

Category Popularity

0-100% (relative to Side Space and Plot Agents)
Chrome Extensions
100 100%
0% 0
Charting Tools And Libraries
Productivity
100 100%
0% 0
Data Visualization
0 0%
100% 100

Questions & Answers

As answered by people managing Side Space and Plot Agents.

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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What are some alternatives?

When comparing Side Space and Plot Agents, 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.

Chart - Create the most popular types of charts by real or random data - GitHub - pavelkuligin/chart: Create the most popular types of charts by real or random data

Workona - A better way to work in the browser.

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

Skipper.co - Tab management that works with ADHD brains

Sidekick Browser - The fastest browser for work ever made