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

Devi AI
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TGDesk
LeadGenRunner monitors thousands of Telegram groups for buyer-intent messages using your keywords. AI classifies every lead as hot/warm/cold and drafts ready-to-send replies. Set up in 5 minutes, get leads on autopilot. Free trial, no card required.

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 | leadgenrunner.com |
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| Platforms | — | |
| Company | Startup from The Netherlands · 1 - 9 employees · 2017 | Startup from Poland · 1 - 9 employees · 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of CodeSandbox yet.
Stop spending hours scrolling through Telegram groups looking for leads. LeadGenRunner does it for you. LeadGenRunner is an AI-powered tool that monitors Telegram groups and channels for buyer-intent messages matching your keywords. When a potential client posts a message, you get an instant...
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
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Walkthroughs and reviews on video.
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As answered by people managing CodeSandbox and LeadGenRunner.
LeadGenRunner's answer:
LeadGenRunner is the only tool that combines real-time Telegram group monitoring with AI-powered lead classification. While other tools scrape member lists or require manual searching, LeadGenRunner monitors public messages 24/7 for buyer-intent keywords and uses AI to classify every lead as Hot, Warm, or Cold - so you only focus on prospects ready to buy. It also generates contextual reply suggestions, letting you respond in seconds instead of hours.
LeadGenRunner's answer:
Three reasons: (1) It's Telegram-native - built specifically for Telegram's ecosystem using the official API, not scrapers that risk account bans. (2) AI does the heavy lifting - instead of reading hundreds of messages yourself, AI classifies leads by intent and urgency, and drafts ready-to-send replies. (3) Scale without hiring - one person can monitor 500+ chats simultaneously, replacing what used to require a team of 3-5 people manually scrolling through groups. Plans start at $9/month with a free 5-day trial, no credit card required.
LeadGenRunner's answer:
Digital marketing agencies, B2B sales teams, freelancers, and small business owners who use Telegram as a sales channel. Particularly popular with agencies managing client outreach in Telegram communities, crypto/Web3 projects monitoring industry conversations, real estate professionals tracking buyer inquiries, and consultants looking for project opportunities in niche groups. The common thread: they know their ideal clients are posting in Telegram groups right now, but finding those messages manually is unsustainable.
LeadGenRunner's answer:
LeadGenRunner was born out of frustration. I was spending 3-4 hours every day scrolling through dozens of Telegram groups looking for potential clients - people asking for recommendations, looking for services, discussing problems I could solve. The messages were there, but finding them was like looking for a needle in a haystack. I built a simple keyword monitor for myself, then added AI classification when I realized that even with keyword matches, 70% of messages were noise. The AI layer changed everything - suddenly I was only seeing high-intent leads. I turned it into a product in 2025, and now it saves users hours every day while finding leads they would have otherwise missed.
LeadGenRunner's answer:
LeadGenRunner is a web-based SaaS application built with Python (FastAPI) on the backend and Vue.js on the frontend. It uses the official Telegram API via Pyrogram for real-time message monitoring, OpenAI GPT for AI lead classification and reply generation, and PostgreSQL for data storage. The platform is hosted on cloud infrastructure with real-time WebSocket notifications.
LeadGenRunner's answer:
Share your experience with using CodeSandbox and LeadGenRunner. 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 LeadGenRunner 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 / 4 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 / 4 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 / 10 months ago
Tracking LeadGenRunner since Mar 2026.
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