S
Sider
43
Stack Score
Best for
Best for individuals who want one AI sidebar across all browsing.
At a glance
- Pricing
- freemiumfrom $8.3/mo
- Setup time
- 5 minutes
- Learning curve
- easy
- Last verified
- 5/26/2026
What we love
- ✓One sidebar for many models
- ✓Cheap relative to per-model subscriptions
- ✓Strong PDF + video support
Where it falls short
- −Browser-only
- −Some features behind Pro
- −BYO API key for advanced
Pricing
2 tiers
Free
$0
per month
- ✓Basic
Pro
$8.3
per month
- ✓GPT-4 + Claude
Overview
Sider is a Chrome sidebar that brings ChatGPT, Claude, Gemini, custom prompts, and translation into every webpage. Solo-creator favorite for browser-side AI.
Key features
- ●Multi-model sidebar
- ●Page summarization
- ●Translation
- ●Custom prompts
- ●PDF + YouTube support
Best use cases
Daily browser AI assistant
Get an always-available AI sidebar for any webpage.
Multi-model research
Compare answers across GPT/Claude/Gemini without juggling tabs.
Integrations
Similar tools
See all research tools →One AI Stack pick every week.
The tool we’d pay for this week, why we’d pay for it, and what we’d skip. No promo spam.