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An open-source desktop notebook for stylus handwriting, PDF markup, layers, and audio notes.

A cross-platform TeX editor that keeps source editing and PDF preview in one typesetting workspace.

Use a Git repository as a wiki that can be edited in a browser or a text editor.

Put a screenshot in a browser or phone frame with a chosen background.

Strip source markup while preserving paragraphs

Compare a target page with search competitors and review on-page recommendations.

A lightweight programmer's editor for website files, scripts, and source code.

Read source and text files in the terminal with syntax highlighting and Git-aware display.

Data observability platform that catches silent data quality issues before they impact your business.

AI writer that produces SEO-focused articles for websites and blogs.

Check page markup, links, redirects and language references in your browser.

Practical setup, knowledge and examples for accessible interfaces

A submission backend for websites using their own HTML forms

Product and inventory sharing between Shopify shops

Inspect the current page's metadata, headings, links, schema and language references.

Render architectural scenes and collect feedback through linked cloud presentations

A handwriting notebook with note-linked audio, handwriting recognition, and PDF annotation.

Change a colour matrix and see how it transforms an image.

Add browser interactions such as AJAX requests and element updates through HTML attributes.

An iPhone and iPad notebook for handwriting, PDF markup, audio notes, and searchable study material.

Handwritten notes with live audio transcription and AI study tools

An Android handwriting workspace with notebooks, PDF markup, sticky notes, and corkboards.

Neutral interface symbols supplied as inline SVG or a shared sprite.

Copy and map database tables with repeatable migration projects