# Free to Use

Kokoro TTS is a powerful text-to-speech tool that supports multiple languages and voice blending features, capable of converting EPUB, PDF, and TXT files into high-quality speech output. The tool provides developers and users with flexible voice customization options to easily create professional-grade audio. Its main advantages include multilingual support, voice blending, flexible input formats, and a free commercial license. This product is positioned to provide creators, developers, and businesses with an efficient and low-cost speech synthesis solution, suitable for audiobook creation, video narration, podcast production, educational content generation, and customer service, among other scenarios.

Toolable is an AI platform focusing on content creation, providing a variety of free AI content generation tools. It uses powerful AI technology to help users quickly generate high-quality content, covering multiple fields from copywriting to educational materials. The main advantage of this platform is that custom tools can be created without coding skills, greatly improving content creation efficiency and saving time and effort. Toolable is suitable for creators, businesses, educators, and all types of users, aiming to promote innovation and development in content creation through AI technology.

The AI Color Palette Generator leverages artificial intelligence to instantly generate perfect color combinations based on user-input keywords or themes. It understands color theory, trends, and aesthetics to provide users with harmonious color schemes. This tool is ideal for designers and creative professionals in need of color pairing for web design, brand identity, or interior space design, offering relevant palettes. Colorify Rocks features free access, instant results, and easy export and sharing options, helping users save time and stimulate creativity.

The text-to-speech tool is an online service that transforms text content into natural and fluent speech output, supporting 74 different languages and 318 unique voice styles. The technology is widely applicable in various scenarios, including video dubbing, audiobook production, announcements, international marketing, and language learning. Key advantages of the product include support for multiple languages and voice choices, no installation required, unlimited usage, and it is completely free. It provides significant convenience for content creators, marketers, educators, and language learners.

Math.now is an AI-driven online math solving platform designed to provide real-time math problem solutions for students, teachers, and self-learners. The platform utilizes advanced AI technologies such as OCR and GPT-4o to recognize and solve a variety of math problems, including algebra, geometry, and calculus. Key advantages of Math.now include instant step-by-step solutions, an interactive learning experience, personalized learning support, and completely free usage. Background information shows that Math.now is powered by Math GPT, aiming to make math learning more enjoyable and accessible.

The AI Letter Generator is an online tool that utilizes artificial intelligence technology to help users quickly create various types of letters. It supports multiple languages, including English, Spanish, French, etc., providing professionally formatted letter templates while focusing on user privacy and data security. Users can access it for free without a subscription, saving time and enhancing efficiency.

X Detector is an advanced multilingual AI content detector capable of accurately identifying text generated by ChatGPT, Claude, and Gemini. Trained by Dr. Algorithm and using 10 billion samples, it ensures high accuracy and reliability. The tool supports over 20 languages, is completely free, and provides services to students, teachers, and institutions to help maintain academic integrity and prevent AI-generated text from disrupting the academic environment.

EverLearns offers a free online mind map generator that utilizes artificial intelligence to help content creators, educators, teachers, teaching assistants, tutors, and parents who homeschool easily create, organize, and visualize their ideas. This tool is particularly suitable for presenting concepts to audiences, students, or children.

GPT Digest is a browser extension that utilizes ChatGPT to generate page summaries, enabling users to swiftly understand web page content. It's free to use with no need for a ChatGPT API. The paid version offers additional features such as background information and credibility scores of article authors, along with interactive question-and-answer capabilities with ChatGPT. With GPT Digest, you can quickly and efficiently comprehend any page, unlocking an unparalleled reading experience.

captionit is an AI-powered tool that helps users quickly generate interesting, clever, profound, or cute captions for their images. Whether it's witty humor, insightful reflections, or adorable greetings, captionit has you covered. It also offers tag and category features, making it easy to find the perfect caption. The captionit mini-program is completely free to use, and the generated captions can be directly shared to Instagram. Try it out now!