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OpenCapture vs Slop Mop

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 Slop Mop
DetailOpenCapture logo OpenCaptureSlop Mop logo Slop Mop
What it doesFree full-page screenshot browser extension for Chrome, Edge and Firefox A bad-writing detector for social feeds that folds away low-value posts and explains why.
StageNot given Not given
FoundedNot given Not given
Based inNot given US
Pricing modelFreemium Freemium
PricingFree: 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 for one feed with 250 checks per day. Slop Mop XL coming soon at $5.99 a month or $59.99 a year.
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)
  • Reads posts ahead before they reach your view
  • Folds low-value posts into compact strips
  • Shows reasoning behind each judgment
  • AI model judges twelve aspects of each post
  • Vote to override verdicts
  • Three sensitivity levels: Mild, Moderate, Aggressive
  • Hide or Highlight modes for controlling visibility
  • Slopprint shows nine tells in visual shape
  • Works in Chrome and Chromium browsers
  • 250 daily checks on free plan
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
  • Not an AI detector but a bad-writing detector
  • Reader stays in control with no permanent blocking or deletion
  • Explains its reasoning with detailed scoring and tells
  • Free for one feed forever
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)Not checked yet no change since last check13 −8 (down) since last check
Trust Flow (Majestic)214
Citation Flow (Majestic)2117
Referring domains (Majestic)2536

5 details filled in for both companies.

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