OpenCapture vs Starizon AI

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

OpenCapture compared with Starizon AI
Detail	OpenCapture	Starizon AI
What it does	Free full-page screenshot browser extension for Chrome, Edge and Firefox	AI browser extension for web research, data extraction and automation
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Freemium
Pricing	Free: Full-page, visible-area and selected-area capture, crop, draw, text, shapes, blur, unlimited undo, and export to PNG or PDF. Supporter: $5 for 1,000 credits (one-time, includes tiled logo or text watermark with custom opacity, position, and angle).	Free plan includes 200,000 one-time credits, daily and monthly usage limits, and 2 active schedules plus 2 monitors. Basic: $8/month or $88/year with 3,600,000 monthly credits and 20 combined schedules and monitors. Pro: $18/month or $198/year with 10,000,000 monthly credits. Lifetime: $49 one-time
Key features	Full-page screenshot capture Visible-area and selected-area capture modes Crop and resize images Draw, text and shapes annotation Blur sensitive information Unlimited undo Export to PNG or PDF Capture history with last 50 screenshots Tiled watermark (Supporter feature)	Compare multiple webpages and tabs in one conversation Extract and filter data into spreadsheets Agent S6 for multi-step browser automation Knowledge Base for saving pages and highlights Bookmark search and organization Schedule tasks and page monitoring with alerts Connect to Gmail, Notion, Google Sheets and Airtable Replay saved browser workflows Bring your own API key (BYOK) Tab grouping and duplicate detection
What makes it different	Completely open source under AGPL-3.0-or-later so users can verify no data collection All processing done locally with no uploads unless buying credits No account required for all core features One-time payment for Supporter feature instead of subscription Stitches full pages into seamless single images	Work with your browser tabs, bookmarks and saved knowledge in one conversation Your Knowledge Base and data stay on your device, you choose the AI model Privacy-first with optional local-first approach and no model training on your sessions Handles complex multi-step tasks combining research, data extraction and automation
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	1 +1 (up) since last check	5 no change since last check
Trust Flow (Majestic)	21	5
Citation Flow (Majestic)	21	28
Referring domains (Majestic)	25	187

5 details filled in for both companies.

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