kitio.aiAFFiNE vs SiteExplainer
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. SiteExplainer is completely free, while AFFiNE is freemium.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Docs and whiteboards
- Databases
- AFFiNE AI
- Local-first storage
- Self-hosting
- Plain-English site summaries
- URL-prefix shortcut
- Permanent shareable pages
- Cached explanations
| Feature | AFFiNE | SiteExplainer |
|---|---|---|
| Best for | Open-source workspace mixing docs, whiteboards and databases with AI | Explains in plain English what any website actually does |
| Category | Productivity | Productivity |
| Pricing model | Freemium | Free |
| Starting price | $6.75/mo | Free |
| Free plan | Yes | Yes, fully free |
| Made by | Toeverything | SiteExplainer |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
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Pricing compared
SiteExplainer is completely free, while AFFiNE is freemium.
Free plan
Cheapest paid plan
Top plan
Free trial
4 plans
FOSS + Cloud Basic
Free
- Local editor, MIT license
- Basic cloud sync
Pro
$6.75/mo
- 100 GB cloud storage
- Up to 10 members per workspace
- 30-day version history
Team
$10/mo
- Per seat
- 100 GB + 20 GB per seat storage
- Multiple admin roles
- Priority support
Believer
$499.99 one-time
- Lifetime personal usage
- 1TB cloud storage
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
AFFiNE
- Open source and self-hostable
- Docs and whiteboard in one
- Local-first data
- Less mature than Notion
- AI is a paid add-on
SiteExplainer
- Free and needs no account
- Works straight from the address bar
- Code is open on GitHub
- Only reads the page you give it
- Summaries can miss or misread details
- Rate limits apply
Which one should you choose?
Choose AFFiNE if you want:
- Open source and self-hostable
- Docs and whiteboard in one
- Local-first data
Watch out: less mature than notion.
Choose SiteExplainer if you want:
- Free and needs no account
- Works straight from the address bar
- Code is open on GitHub
Watch out: only reads the page you give it.
AFFiNE vs SiteExplainer FAQ
What is the difference between AFFiNE and SiteExplainer?
AFFiNE: Open-source workspace mixing docs, whiteboards and databases with AI. SiteExplainer: Explains in plain English what any website actually does. Both are productivity tools.
Is AFFiNE or SiteExplainer cheaper?
SiteExplainer is completely free, while AFFiNE is freemium.
Do AFFiNE and SiteExplainer have free plans?
AFFiNE: Yes. SiteExplainer: Yes, fully free.
Who makes AFFiNE?
AFFiNE is made by Toeverything.
Who makes SiteExplainer?
SiteExplainer is made by SiteExplainer.
Which should I choose, AFFiNE or SiteExplainer?
Choose AFFiNE if you value open source and self-hostable and docs and whiteboard in one. Choose SiteExplainer if you value free and needs no account and works straight from the address bar.