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Sider Code
Customize any website with plain words and make it look and work the way you want.
10M+ Active users100K+ 5-star ratingsEditors' Picks Chrome · 2026Favorites of the Year Chrome · 2025No coding required
Opportunity score
68/100
Sider Code has strong distribution and a compelling no-code customization loop, but direct business viability is uncertain without pricing, retention, and revenue data.
Founder verdict
MAYBE
Sider Code is a well-distributed AI browser customization product with real retention mechanics, but it is not an easy direct clone.
What is Sider Code?
Sider Code is an AI browser feature from the Sider extension suite that lets users describe a desired change to a website in plain language, then applies and remembers that change across visits. It combines page understanding with page modification, enabling not just hiding elements but summarizing content, restructuring threads, extracting information, and adding actions. The provided page highlights use cases such as Reddit comment summaries, X thread read mode, Google Docs dark mode, Hacker News debate view, Wattpad reading mode, and YouTube Shorts removal. Distribution appears to be the strongest asset: the site claims 10M+ active users and 100K+ five-star ratings across Sider, with Chrome awards for 2025 and 2026. Specific pricing, MRR, growth, team size, and stage are not disclosed in the supplied content.
Get the full Sider Code playbook
The complete reverse-engineering — what to copy, what to avoid, and exactly what to build instead.
- Full opportunity score across 8 dimensions
- The real problem & why customers pay
- Why it's winning — with evidence
- Complete business reverse-engineering
- Competitive advantages & moat analysis
- Weaknesses, risks & what to avoid
- Clone strategy — what to build instead
- Week-by-week MVP roadmap
- Recommended technical stack
- Founder verdict & highest-leverage move