Mastros
Privacy-first Chrome extensions exporting social media data for professionals
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mastros.online
Domain Rating
14
Estimated· Domain Rating by Ahrefs
Monthly visits
—
No estimate yet
MRR
—
Not connected
PageSpeed
73
Estimated· Lighthouse mobile
Founded
2026
Overview
Mastros is a software company founded in 2026 by Elias Mahdavi that builds privacy-first Chrome extensions for exporting data from WhatsApp, Telegram, LinkedIn, Instagram, and TikTok. These extensions allow users to export group members, messages, contacts, search results, and media into CSV, XLSX, JSON, or JSONL files, all processed locally in the user's browser without sending data to Mastros servers. Mastros focuses on providing tools for research, group administration, and record keeping while respecting user privacy and platform terms.
- Who is it for?
- Professionals and businesses needing to export and analyze social media data for research, sales, marketing, and community management
- Problem
- Users need to export and save data from social media platforms like WhatsApp, Telegram, LinkedIn, Instagram, and TikTok for research, group management, and record keeping, but platforms do not provide easy ways to export this data. Existing solutions may compromise privacy or require server-side processing.
- Solution
- Mastros provides Chrome extensions that run client-side in the browser, exporting only the data the user can already see on the platform into clean files like CSV or JSON. The extensions do not automate actions or send data externally, ensuring privacy and compliance.
- What makes it unique
- All data processing happens locally in the user's browser with no data sent to Mastros servers
- Read-only extensions that never send messages or automate actions
- Supports multiple major social platforms with dedicated extensions
- Clear privacy and legal compliance guidance provided
Use cases
- 1Export WhatsApp group members, contacts, messages, and media
- 2Save Telegram group members, messages, contacts, and media
- 3Export LinkedIn profile, company, job, and post search results
- 4Download Instagram followers, comments, posts, and stories with engagement data
- 5Export TikTok creator profiles, videos, comments, and engagement rates
Community
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Screenshots (2)
Features (8)
- 01WhatsApp Scraper
Exports WhatsApp Web group members, recent contacts, chat messages, and media to CSV, JSON, or JSONL.
- 02Telegram Scraper
Exports Telegram Web group members, chat messages, recent contacts, mutual groups, and media to CSV, JSON, JSONL, or ZIP.
- 03LinkedIn Scraper
Exports LinkedIn Profile, Company, Jobs, Posts, and Sales Navigator searches to CSV, JSON, or JSONL.
- 04Instagram Scraper
Exports Instagram followers, following, comments, posts, stories, and media to CSV, XLSX, or JSON.
- 05TikTok Scraper
Exports TikTok creator profiles, videos, comments, and engagement rates to CSV, JSON, JSONL, or ZIP.
- 06Local Data Processing
All data processing happens inside the user's browser with no data sent to Mastros servers.
- 07Read-Only Operation
Extensions only read visible data and never send messages or automate actions.
- 08Multi-Format Export
Exports data in multiple formats including CSV, JSON, JSONL, XLSX, and ZIP archives.
Pricing
Free
Free
Start with every tool, 100 profiles and 100 messages per month, every scraper unlocked, no account needed
Most popular
Pro
$9/ month
Best if you export a lot, 5,000 profiles and 10,000 messages per month, same tools as Free with bigger limits
Scale
$18/ month
For very big jobs, 100,000 profiles and 500,000 messages per month, biggest limits
subscriptionFree plan · from $9/mo
Business details
- Business model
- SAAS
- Audience
- B2B
- Platforms
- web · chrome extension
- Pricing model
- subscription
- Value proposition
- Privacy-first Chrome extensions that export visible social media data locally in your browser without sending it to servers
FAQ (5)
01Is Mastros safe to use?
Yes, all data processing happens inside your browser and no user data is sent to Mastros servers. The extensions only read data already visible to you and never send messages or automate actions.
02Can my account get banned?
Mastros only reads data your browser has already loaded and does not perform actions that could get your account banned. However, you are responsible for following each platform's terms and limits.
03Is it legal to export this data?
Mastros only exports data visible to you on your logged-in account for your own records. Redistribution and use of this data are subject to platform terms and applicable privacy laws.
04What data does Mastros collect about me?
Mastros does not collect your messages, phone numbers, names, or chat titles. Only account and billing information touches Mastros servers.
05Do I need an API key or account?
No, Mastros extensions work through your existing logged-in sessions and do not require API keys or accounts.
Traffic & SEO
Domain Rating
Sep 22 · by Ahrefs
14
- Domain Rating
- 14by Ahrefs
- Global rank
- —
- Lighthouse
- 73 perf · 100 SEOmobile
Traffic, engagement, sources and keywords are Similarweb-style estimates, refreshed monthly. Verified traffic comes from a connected Google Analytics / Search Console.
Technology (12)
Detected from the site's HTML, headers and bundles
- Build tool
- Vite
- Feed
- RSS
- Metadata
- Open Graph
- Protocol
- HTTP/3
- UI framework
Tailwind CSS
Radix UI
Cloudflare
Google Analytics
React
Lucide
shadcn/uiFounders
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