Best Tool Libraries (2026)

1

Markdown Converter Pro

Convert Markdown to PDF, HTML, and Word—and turn PDFs back into clean Markdown.

5.0 (6)

· free

Full review

Markdown Converter Pro is a document conversion utility built around the Markdown format. It handles the common workflows writers and developers need: exporting Markdown notes to polished PDF, HTML, or Word files, and extracting clean Markdown from existing PDF documents. The tool aims to preserve formatting elements such as headings, lists, tables, code blocks, and links during conversion, making it useful for technical documentation, blog drafts, reports, and archiving content across formats. It fits into workflows where Markdown is the source of truth but final deliverables need to be shared in more universal office or web formats.

• Markdown to PDF export
• Markdown to HTML conversion
• Markdown to Word (DOCX) export
• PDF to Markdown extraction
• Formatting preservation for headings, lists, and code
• Browser-based conversion workflow

2

MD2Word

Free online tool for converting Markdown files into formatted Word documents.

5.0 (4)

· free

Full review

MD2Word is a web-based converter that transforms Markdown content into Microsoft Word (.docx) files while preserving structure such as headings, lists, tables, code blocks, and links. It is designed for writers, developers, and students who draft in Markdown but need to deliver polished Word documents for sharing or editing. The tool runs directly in the browser, so users can paste Markdown text or upload .md files and download the resulting Word document without installing additional software. It aims to keep the conversion process quick and accessible for casual and frequent users alike.

• Markdown to .docx conversion
• Supports headings, lists, and tables
• Handles code blocks and inline formatting
• Paste text or upload .md files
• Instant download of Word output
• Works directly in the browser

3

AI prompt library

A large searchable collection of ready-made prompts for ChatGPT, MidJourney and other AI models.

5.0 (4)

· free

Full review

AI Prompt Library is a curated repository of pre-written prompts designed to help users get better results from generative AI tools. With tens of thousands of entries spanning writing, coding, marketing, design, and image generation, it aims to shorten the learning curve for both new and experienced AI users. Prompts are typically organized by use case, model, and category, making it easier to browse for inspiration or copy a tested template directly into a chatbot or image generator. The library is useful as a reference, a starting point for customization, or a way to discover new ways of applying AI in daily workflows.

• 30,000+ prompt collection
• Support for ChatGPT and MidJourney
• Category and use-case browsing
• Copy-ready prompt templates
• Coverage of writing, marketing, art, and coding tasks

4

DevUtilX

A unified web suite of 100+ developer utilities for everyday coding tasks.

4.8 (6)

· free

Full review

DevUtilX is a unified web suite of 100+ developer utilities for everyday coding tasks. It includes tools such as code formatters and minifiers, converters, and validators, among others. One of its tools, the JavaScript/TypeScript Beautifier, formats and beautifies code, making it more readable, maintainable, and professional-looking. Similarly, the CSS Formatter automatically organizes CSS code into a clean, readable, and well-structured format. The tool is highly customizable and can be used to enforce a uniform style across all stylesheets. It helps in improving readability and maintaining a consistent coding style, making collaboration easier. DevUtilX can help developers streamline their development workflow and improve the overall quality of their projects. It also helps in identifying potential issues in code that might otherwise go unnoticed. However, its effectiveness depends on the specific needs of the developer. Its vast array of tools and highly customizable options make it a comprehensive resource for developers.

• 100+ developer utilities in one hub
• JSON, XML, and YAML formatters
• Encoders, decoders, and hash generators
• Regex testing and text manipulation tools
• Color, image, and unit converters
• Categorized browsing interface

5

AgentAuth

Authentication layer enabling AI agents to securely access 250+ apps on users' behalf.

4.8 (5)

· free

Full review

AgentAuth is an authentication layer designed to allow AI agents to securely access a wide range of applications on behalf of users. By leveraging AgentAuth, AI tools can seamlessly integrate with 250+ apps, enabling streamlined workflows and robust capabilities. As an authentication solution, AgentAuth prioritizes security, ensuring that AI interactions with apps are transparent, traceable, and compliant with industry standards. The platform's capabilities allow developers to focus on building their applications without worrying about the intricacies of authentication and authorization processes. With AgentAuth, the potential for AI-driven innovation is amplified.

• Authentication and authorization for AI agents
• Support for 250+ popular applications
• API-based integration
• Security and compliance features

Wildcard is a commerce optimization platform built for the emerging world of AI-driven shopping. It helps merchants and brands make their product catalogs more visible, accurate, and purchasable when consumers ask AI assistants like ChatGPT for recommendations. The tool focuses on structuring product data, monitoring how items appear in AI responses, and tuning content so listings are more likely to be cited and converted into sales. It targets ecommerce teams that want to treat AI assistants as a new channel alongside search and social. By combining catalog optimization with visibility analytics, Wildcard aims to give brands a measurable way to grow revenue from conversational shopping experiences.

• Product catalog optimization for LLMs
• Visibility tracking across AI assistants
• ChatGPT shopping integration support
• Conversion and recommendation analytics
• Content tuning for AI citations
• Brand presence monitoring in AI responses

7

Machine Generated

Content feeds engineered for machine audiences and AI consumers.

4.8 (4)

· free

Full review

Machine Generated focuses on producing and distributing content feeds specifically designed for machine audiences rather than human readers. The platform structures information in formats optimized for ingestion by AI agents, large language models, crawlers, and automated pipelines. By treating machines as a first-class audience, it helps publishers, data providers, and businesses make their content more discoverable and usable in AI-driven workflows. The output is intended to be parsed, summarized, or acted upon by downstream automated systems. This approach is useful for teams building agent-based products, training datasets, or AI-powered search experiences that need clean, machine-friendly inputs.

• Machine-optimized content feeds
• Structured output formats
• Distribution tailored to AI agents
• Compatibility with automated ingestion
• Support for crawler and LLM workflows

8

NomadicML

Continuously optimize and adapt production AI models to unseen real-world data in real time.

4.6 (5)

· free

Full review

NomadicML is a machine learning platform focused on keeping deployed AI models accurate as the data they encounter shifts over time. It monitors models in production, detects when performance degrades on new or unexpected inputs, and helps teams adapt their models without lengthy retraining cycles. The platform is aimed at ML engineers and data science teams running models in dynamic environments where data distributions change frequently. By automating parts of the model maintenance loop, it reduces the operational overhead of keeping AI systems reliable after deployment.

• Continuous production model optimization
• Real-time adaptation to unseen data
• Performance monitoring and drift detection
• Automated model improvement workflows
• Built for live ML deployments

9

Grimly AI

Developer-focused AI API for integrating language models into apps and workflows.

4.6 (5)

· free

Full review

Grimly AI is a developer-focused AI API that enables the integration of language models into applications and workflows. It provides a programmable interface for incorporating AI capabilities, allowing developers to build and enhance their software with language understanding and generation features. Grimly AI's API is designed to be used by developers who want to add AI-powered functionality to their apps, but the specifics of its capabilities, such as supported models, customization options, and usage scenarios, are not readily available. The tool appears to cater to developers looking to leverage language models in their projects, but a detailed understanding of its strengths, limitations, and competitive landscape is not possible without further information.

• AI model access via API
• Prompt and response endpoints
• Integration into custom apps
• Developer-oriented documentation
• Programmable automation workflows

10

AI VIDEO SPLITTER

Local, browser-based video splitter that works instantly with no uploads or watermarks.

4.5 (6)

· free

Full review

AI Video Splitter is a browser-based tool that allows users to split videos into clips without uploading them to a remote server. It works locally in the browser, ensuring that files are never transferred or stored online. The tool supports various video formats, including MP4, WebM, MOV, MKV, AVI, FLV, 3GP, MPG, and WMV. The tool offers four methods for splitting videos: manual precision using timestamps and a preview player, bulk automation by dividing the video into equal parts, splitting by duration, and splitting by file size. The splitter operates in two modes: Fast Mode, which uses stream copy for instant splitting without re-encoding, and Advanced Mode, which allows for format conversion and precise cuts but takes longer. AI Video Splitter is designed for users who need to process confidential or personal videos, as it ensures zero-upload privacy by using WebAssembly-compiled FFmpeg in the browser. The tool is suitable for various workflows, including breaking down lecture recordings, long-form content, or large files into smaller, manageable clips. The tool's key benefits include speed, security, and flexibility. It operates instantly without requiring uploads or waiting for remote processing. Users can export clips in various formats, including MP4, WebM, and MOV, and choose from different quality settings. Overall, AI Video Splitter is a convenient and private solution for splitting videos locally in the browser, making it an attractive alternative to cloud-based tools.

• Local in-browser video processing
• Fast splitting without server uploads
• Watermark-free exports
• No file size or usage limits
• Supports common video formats
• Privacy-friendly workflow