
MobiPDF (formerly PDF Extra) is an intuitive reader and editor that allows you to read, edit, create, OCR, organize, annotate, fill and sign, convert, and share any PDF. This makes MobiPDF an excellent choice for users seeking a budget-friendly alternative to Adobe Acrobat Pro.
HERE’S WHAT YOU GET WITH MOBIPDF:
Multiple Page View Modes: Enjoy a distraction-free "Read Mode".
Advanced Editing Tools: Experience a Word-like PDF editing environment.
Two-Way Conversions: Convert PDFs to and from Word, Excel, PowerPoint, or image formats.
OCR Support: Make scanned documents searchable.
Markup Tools: Highlight, comment, strikethrough, stamp, and more to enhance your documents.
Effortless PDF Organizer: Reorder, compress, split, and combine PDFs with ease.
Sign & Secure: Add signatures, create and fill forms, and protect your PDFs with passwords, encryption, and digital certificates.
Offline Mode: Work freely on your projects, even offline.
Seamless translation: One-click translate any PDF into 50+ languages.
Learn more

Okyline is an Executable Data Design (EDD) platform focused on executable validation contracts and operational data quality control.
Rather than managing separate specifications, validation code, tests, and monitoring dashboards, Okyline centralizes validation and quality supervision around a single readable executable contract acting as the operational reference for enterprise data flows.
The same contract powers deterministic validation, advanced business invariant checks, multi-format execution, data quality gates, and historical quality analytics across APIs, events, files, LLM structured outputs, and distributed operational systems.
Contracts are designed directly from annotated sample data, making validation rules immediately understandable for developers, architects, QA teams, and business analysts.
The Community Edition includes the public specification, a free Java runtime engine, a Claude AI assistant for contract generation, and an online studio supporting executable JSON validation contracts and JSON Schema transpilation.
The Enterprise Edition adds native validation for JSONL, XML, CSV, FIXED, and EDI flows together with operational quality dashboards and data quality gates, without requiring databases or centralized infrastructure.erprise Edition supports direct validation of JSON, JSONL, XML, CSV, FIXED, and EDI flows with operational quality dashboards and analytics, without databases.
Learn more
Koi Editor
Koi Editor is a high-speed, streamlined, and scriptable text and code editor tailored for macOS, emphasizing minimal typing latency, efficient handling of large files, and seamless local workflows.
This editor boasts features such as multi-cursor editing, multiple synchronized document views, comprehensive project-wide search, navigation through files and buffers, syntax highlighting, code completion, customizable themes, personalized keybindings, and a wide array of text-editing commands.
It is engineered to maintain responsiveness even when dealing with extensive source files, logs, and structured text formats, having been rigorously tested with documents comprising tens of millions of lines while still preserving syntax highlighting and essential editing capabilities.
With optional AI functionalities supporting local models via Ollama for code completion and real-time assistance, Koi can function completely offline, requires no user account, and is devoid of any telemetry features.
Specifically crafted for Apple Silicon Macs, Koi integrates a bespoke editing engine with the native capabilities of macOS, ensuring an optimized user experience that combines performance with familiarity.
Overall, Koi Editor represents a modern solution for developers and writers seeking a powerful yet intuitive interface without the distractions of unnecessary features.
Learn more
Pinegrow
Pinegrow is a versatile web editor available on Mac, Windows, and Linux, designed to accelerate the creation of responsive websites through features such as live multi-page editing, CSS and SASS styling, a CSS Grid editor, and compatibility with frameworks like Bootstrap, Tailwind CSS, Foundation, and WordPress. As a desktop application, Pinegrow allows users to open and save standard HTML and CSS files, ensuring you are not confined to a proprietary format, which means you can seamlessly edit your existing projects. It can be utilized in conjunction with other web development tools, enabling you to work offline without an internet connection and to construct as many websites as you desire. With robust visual tools at your disposal, you can effortlessly design the layout of your web pages by adding, editing, moving, cloning, and deleting HTML elements. The software also offers a repeater feature for inserting multiple elements simultaneously and enables you to adjust the layout of all selected items in a single action. You can inspect active CSS rules and utilize a combination of rich visual controls, a CSS Grid editor, and a Dev tools-like interface, all functioning harmoniously together. Moreover, Pinegrow supports live editing of SASS and LESS files, eliminating the need for external tools, making it an all-in-one solution for web development. Additionally, its user-friendly interface streamlines the workflow, allowing developers of all skill levels to create visually stunning websites efficiently.
Learn more