OpenCapture vs Kaption 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 Kaption AI
Detail	OpenCapture	Kaption AI
What it does	Free full-page screenshot browser extension for Chrome, Edge and Firefox	WhatsApp voice messages to text with AI
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	US
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: no credit card required. Basic: US$5.99/month (US$4.99/month quarterly, US$3.99/month annually). Pro: US$9.99/month (US$7.99/month quarterly, US$5.99/month annually). Also available in Brazilian Real: Basic from R$29.99/month, Pro from R$49.99/month.
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)	Voice message transcription with automatic text conversion Chat summarization with AI Live translation in 36 languages WhatsApp call recording with transcripts Integration with Claude and ChatGPT via MCP Kanban board for chat organization Scheduled messages and reminders Contact export and group member download Privacy mode and screen lock Support for multiple WhatsApp accounts on desktop
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	Transcription runs locally on your device; audio only temporarily sent to servers for processing 4.8-star rating with over 5,000 reviews in Chrome Web Store Used by over 50,000 active users Works with multiple platforms: Chrome, Edge, Mac, Windows, iPhone, Android
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)	Not checked yet no change since last check	19 no change since last check
Trust Flow (Majestic)	21	6
Citation Flow (Majestic)	21	30
Referring domains (Majestic)	25	181

5 details filled in for both companies.

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