Fern
buildwithfern.comPublish developer documentation from Markdown and API specifications with versioned content and editing tools.
Publish developer documentation from Markdown and API specifications with versioned content and editing tools.
A graphical Racket development environment with interactive evaluation, language selection, and debugging tools.
A Windows text and code editor with CSV tools, search, and support for very large files.
A Windows programmer’s editor with web preview, remote-file transfer and hex viewing.
Live sample and MIDI layers with an editable performance timeline
Indonesian television and sport with market-specific package guidance
Shape a text editor into a personal development environment using Emacs Lisp and an extension package system.
Individual Chinese lessons with live teachers.
Open-source scene-based recording and live production
Record and run realistic web and API load tests in real browsers, then review user-facing timings.
Records web and mobile user flows as hosted automated tests, with AI prompts and run diagnostics.
Route visitors to the right booking page, screen requests, and schedule meetings across a team.
Music production with clips, MIDI transformations and instruments
AI video and audio editor where you edit by editing the transcript text.
Create and publish technical documentation with a visual editor and a Git-synced workflow.
Browser-based video editor with AI tools for creating and repurposing content
Product and journey analytics for mobile and web experiences
Collect mobile-app events for acquisition, retention, revenue and crash analysis.
Cross-channel lifecycle flows with editable templates and publishing permissions
Unify B2B data relationships for attribution, account engagement and revenue analysis.
Track calls, forms and chats, then compare qualified leads and sales value.
Recorded user journeys with step-by-step design annotations
Self-hosted marketing campaigns with segment and form entry rules