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SPECIFICTION
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Fern vs InkLoom

Fern

buildwithfern.com

InkLoom

inkloom.io

Side by side

FigureFernInkLoom
Price fromFree$49/mo
Free planYesYes
Free trial—Yes
Open sourceYes—
WebYesYes
WindowsYes—
macOSYes—
LinuxYes—
APIYesYes
Self-hostedYesYes
Plans published24
Spec score · AI Documentation Generators8.7 (#8)7.9 (#22)
API referencesFern generates interactive API references from OpenAPI, AsyncAPI, gRPC, GraphQL, OpenRPC, and related specifications.Users can provide an OpenAPI specification to generate interactive API reference documentation.
IntegrationsListed integrations include PostHog, Google Analytics, Segment, Mixpanel, FullStory, Intercom, Postman, and Context7.The maker lists GitHub integration and migrations from GitBook and Mintlify; Enterprise offers custom integrations.
SecurityFern's trust center lists SOC 2 Type II, GDPR, and CCPA and provides access requests for its SOC 2 report, penetration test summary, and information security policy.The privacy policy says InkLoom uses encryption in transit and at rest, access controls, and regular security reviews.
SupportThe Enterprise plan includes dedicated support and an uptime SLA.The Free plan includes community support, Ultimate includes priority support, and Enterprise includes dedicated support.

Plans

Fern

  • FreeFree
  • EnterprisePriced on request

Fern pricing →

InkLoom

  • FreeFree
  • Pro$49 a month
  • Ultimate$159 a month
  • EnterprisePriced on request

InkLoom pricing →

In their own words

Fern

Fern has no write-up on Specifiction yet; its figures are above.

Visit buildwithfern.com

InkLoom

InkLoom creates and publishes documentation from a codebase, with options for AI-assisted updates, GitHub workflows, and API references. Its AI can generate documentation from code and revise pages as code changes. Authors can also use a block editor with code blocks, callouts, tabs, and embeds without writing Markdown. For API documentation, an OpenAPI specification can produce interactive reference pages. GitHub support includes two-way synchronization, branch previews, and pull-request reviews. Documentation can be deployed to Cloudflare’s edge network or hosted on a customer’s own infrastructure; output options include hosted and static sites, API pages, and MDX. InkLoom is available through the web and API, or as self-hosted software. AI processing is opt-in, and the company says customer content is not used to train AI models. The Free plan is free and allows one free user per project. Pro is $49 a month per project, plus $12 per seat monthly; Ultimate is $159 a month per project, plus $12 per seat monthly. Both paid plans list a 14-day trial. Enterprise pricing is custom.

Visit inkloom.io