Fern vs Document360 vs Supadev vs Swimm

Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.

Your tool
Fern
vs
Competitor 1
Document360
Competitor 2
Supadev
Competitor 3
Swimm
Compare
4 tools · best value per row highlighted
Your tool Fern
buildwithfern.com
Fern is a developer platform that produces documentation websites, client libraries and a command-line interface for an API from one definition.
Remove
Competitor Document360
document360.com
Document360 is knowledge base software for publishing product documentation, help centers, SOPs, user manuals and API docs.
Make main Remove
Competitor Supadev
supadev.so
Ever notice how AI coding assistants sometimes generate code that's completely wrong for your project
Make main Remove
Competitor Swimm
swimm.io
Swimm delivers agentic application modernization for large codebases.
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
—
—
3.9Kvisits/mo
—
MoM change
—
—
▲ 177.8%
—
6-month growth
—
—
—
—
Global rank web
—
—
#4,727,095
—
Avg. last 3 months
—
—
2.2K
—
Bounce rate lower is better
—
—
56%
—
Pages / visit
—
—
1.3
—
Visit duration
—
—
5s
—
Traffic sources
—
—
—
—
FernDocument360SupadevSwimm
09832K2.9K3.9KSupadev · 941Supadev · 351Supadev · 1.2KSupadev · 1.4KSupadev · 3.9K1001K10KSupadev · 941Supadev · 351Supadev · 1.2KSupadev · 1.4KSupadev · 3.9KDec '25Jan '26FebMarApr
Pricing
Model
—
—
Paid
—
Starting price
—
—
$12per month
—
Free tier
–
–
–
–
Free trial
–
–
–
–
API access
–
Plans
—
—
Professional Monthly $30/moProfessional Yearly $12/mo
—
Capabilities input → output
Input
Code
DocumentsTextVideo
Text
Code
Output
AppsCode
AppsText
Documents
CodeDocuments
Skill level
Advanced
Intermediate
Advanced
Advanced
Categories
Development & CodeAI Developer Tools
Business & MarketingEducation & LearningProductivity & OfficeAI Customer Service+2 more
Development & CodeProductivity & OfficeAI Developer ToolsAI Documents Generator
Development & CodeAI Developer Tools
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
6
10
5
7
Developer tools
–
Code documentation
–
API docs
–
–
MCP
–
–
Code analysis
–
–
–
Knowledge bases
–
–
–
Agents
–
–
–
Customer support chatbot
–
–
–
Project specifications
–
–
–
Repo analysis
–
–
–
Technical documentation
–
–
–
Writing documentation
–
–
–
AI search
–
–
–
APIs
–
–
–
Changelogs
–
–
–
Customer support
–
–
–
Development
–
–
–
Documents
–
–
–
Enterprise architecture
–
–
–
Knowledge exploration
–
–
–
SOPs
–
–
–
SaaS knowledge base
–
–
–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
▲ 0
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
0
0
0
Verified listing
–
–
–
–

Traffic figures are third-party estimates for the tool's own domain; tools sharing a domain with a bigger product are not counted. Pricing is captured from each tool's site and may lag.