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Free audio conversion with cue splitting and folder retention

Render, inspect, extract, and restructure PDFs from a terminal

A specialist icon toolkit for audio software and plug-in interfaces.

Share a collaborative whiteboard URL and work across unlimited pages with live audio, video, and document annotation.

Create and deliver documents from templates and connected data

Audio conversion, disc extraction, and console workflows

A multi-format notebook for handwriting, PDFs, voice notes, and study documents.

A visual knowledge notebook for connecting research, highlights, and ideas on whiteboards.

An open-source iPad notebook for Apple Pencil writing and PDF markup.

A teaching whiteboard with video calls, lesson materials, and PDF or image annotation.

Write with Apple Pencil in an Obsidian vault and keep handwritten pages beside Markdown notes.

A shareable infinite drawing board for handwriting, tutoring, diagrams, and PDF markup.

Write and annotate handwritten notes on Android with page layouts, linked notes, and PDF tools.

Online text to speech with 130 languages, 30+ voices and 200+ audio tags.

AI summarizer and repurposing tool for videos, podcasts, articles and documents

A handwritten notebook for Apple Pencil notes, PDF markup, study tools, and creative pages.

Read study PDFs and make notes as part of one annotation workflow.

Microlearning app with daily audio insights from books and more in a voice you choose.

A handwriting notebook that links notes and searches handwriting, Markdown, and PDF text.

An open-source academic notebook that brings Markdown notes, PDF annotations, and literature management together.

Audio infrastructure to record, transcribe and enrich audio through a single API.

AI workspace that turns text, video, audio, PDFs, websites and images into summaries, mind maps and diagrams.

Real-time speech enhancement SDK that helps Voice AI work reliably in noisy, real-world audio.

Note taking tool with flashcards, PDF annotation, and AI study features