
CodePen
replit
JSFiddle
StackBlitz
GitHub
VS Code
JS Bin
Online playground for React

OneTab
Workona
Workona Tab Suspender
Session Buddy
across-tabs
Best New Tab
Tabbs
Online research can get time consuming and frustrating fast. You browse multiple sites, repeatedly copy-paste information into chat tools and notes and soon, realize you have lost track of what's where and where's what. This is where TabMate can help
Which is more popular?
Based on our record, CodeSandbox seems to be more popular. It has been mentioned 313 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | codesandbox.io | tabmate.org |
| Pricing | ||
| Platforms | — | |
| Company | Startup from The Netherlands · 1 - 9 employees · 2017 | Startup from India · 10 - 19 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of CodeSandbox yet.
TabMate is a browser extension that gives you a side-panel workspace with an AI assistant where you can ask questions about the current page, save useful excerpts, keep notes, carry the right context forward as you move across pages, and build research over time. Instead of jumping between tabs,...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
A browser IDE that's actually GOOD? (CodeSandbox.io Review!)
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How The Interface Works | TabMate
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing CodeSandbox and TabMate.
TabMate's answer:
The primary audience for TabMate is people who do serious research and work in the browser and need to keep context intact across many tabs, sources, and sessions. That includes product teams, founders, researchers, analysts, students, and other knowledge workers who gather information from multiple web pages and do not want their notes, questions, and evidence scattered across separate tools.
TabMate's answer:
TabMate exists because my own research workflow was getting harder to manage as my work scaled. I would regularly have 20+ tabs open, plus an AI chatbot and a notepad, moving page by page to copy useful points, save notes, and then paste everything into chat to extract insights or turn it into something usable.
That worked for a while, but over time it became scattered and slow. I started losing track of which note came from which source, which findings were outdated, and what I had already processed. Reusing research across sessions was painful, and constantly copy-pasting selective context into chat tools added even more friction.
I built TabMate to fix that part of the workflow. I wanted a browser research workspace where questions, sources, notes, and saved evidence stay connected instead of being scattered across tabs, docs, and chats. That is how TabMate started, and it is also what I use myself today, including to help fill out this form.
TabMate's answer:
TabMate is built as a multi-part product stack.
TabMate's answer:
People should choose TabMate because it is designed for real browser research workflows, not just storing tabs or generating answers detached from the source. It keeps questions, excerpts, notes, and saved evidence tied to the page they came from, so users can compare sources, revisit earlier findings, and continue research later without losing context. Compared with generic AI tools, note apps, or tab managers, TabMate is better for work that depends on staying grounded in the original material across many tabs and sessions.
TabMate's answer:
TabMate is the first-of-its-kind extension that allows you to carry and use information across tabs without needing to copy-paste and switch to another tool. It lets you ask from the page you are on, save excerpts and notes with their source attached, and bring that context back later instead of rebuilding it from scratch across tabs and sessions. The result is a research workflow where questions, evidence, and follow-up work stay connected, which makes multi-tab web research far more usable and reusable than with standard tab managers or AI tools alone.
TabMate's answer:
We are currently focused on early users and smaller research-heavy teams rather than publicly named enterprise accounts.
Share your experience with using CodeSandbox and TabMate. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Codesandbox is an online code editor and prototyping tool that makes creating and sharing web apps faster. Codesandbox: Online code editor and ide for rapid web development.
CodeSandbox can be thought of as a much more powerful and complete take on JSFiddle. True to its name, CodeSandbox provides a complete code editor experience and a sandboxed environment for front-end development.
We have no reviews of TabMate yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


To begin, you can start creating your own react app using the command line or can directly go to CodeSandbox if you want to skip using the command line which is faster. CodeSandbox is an online code editor and prototype tool that speeds... - Source: dev.to / 5 months ago
To begin, you can create a react app using the command line or any code editor (e.g., VSCode). You can also try using CodeSandbox as an online code editor that is simple to use and allows you to deploy your code. - Source: dev.to / 5 months ago
If you are in a rush to open unknown repos, use GitHub Codespaces or codesandbox with Copilot or another AI integration to analyze the repo for malicious intent and to run it in a safe environment. - Source: dev.to / 11 months ago
Tracking TabMate since Apr 2026.
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