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Side Copilot vs OpenTabs

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

Side Copilot compared with OpenTabs
DetailSide Copilot logo Side CopilotOpenTabs logo OpenTabs
What it doesBrowse less. Get more done. Your open tabs, grouped, on every new tab
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFreemium Open source
PricingFree: $0/month with up to 5 spaces and basic chat. Pro: $2.9/month ($4.9 monthly equivalent) with unlimited spaces and Agent Mode. Pro+: $7.9/month ($11.9 monthly equivalent) with cross-page agent and additional tools. Yearly plans include 2 months free. Free, under the AGPL-3.0-or-later licence. No paid plans, trials or cards.
Key features
  • Vertical tabs manager in side panel
  • Group tabs by domain or AI
  • Chat mode to query open tabs
  • Agent mode for browser automation
  • Suspend tabs to free memory
  • Pin and search tabs
  • Support for multiple languages
  • Save and restore tab groups
  • Shows open tabs from every window grouped by site
  • Close all tabs from a site in one click
  • Close duplicate tabs in one press
  • Merge windows into one
  • Customizable briefing with news topics, markets, weather, calendar and to-do list
  • Optional end-to-end encrypted sync between browsers
  • No account required
  • Instantly loads with no network requests on tab open
  • Automatic stale new tab page closing
  • Works completely offline after initial configuration
What makes it different
  • AI-powered tab organization without switching browsers
  • Side panel operates without breaking workflow
  • Works across multiple browsers and platforms
  • Generous free plan with cloud sync
  • Natural language AI grouping
  • Only tab manager that shows actual open tabs on the new tab page itself
  • Completely private by design with no account, no tracking and no server storage
  • Zero network delay when opening new tabs
  • Optional sync is end-to-end encrypted so the server never sees your data
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)52 no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)200
Citation Flow (Majestic)3213
Referring domains (Majestic)2873

5 details filled in for both companies.

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