List of the Top 25 Free Prompt Engineering Tools in 2025

In Google AI Studio, prompt engineering refers to the practice of crafting and fine-tuning the inputs provided to AI models to attain specific outcomes. By testing various wording and formats, developers can enhance prompts to boost the performance of the models, leading to responses that are more precise and pertinent. This technique is especially crucial when dealing with large language models, as the results produced can differ greatly based on the prompt's construction. Google AI Studio provides resources that support prompt engineering, simplifying the process for developers to develop impactful prompts that generate superior results.

Effortlessly track expenses, usage, and latency for your GPT applications using just a single line of code. Esteemed companies that utilize OpenAI place their confidence in our service, and we are excited to announce our upcoming support for Anthropic, Cohere, Google AI, and more platforms in the near future. Stay updated on your spending, usage trends, and latency statistics. With Helicone, integrating models such as GPT-4 allows you to manage API requests and effectively visualize results. Experience a holistic overview of your application through a tailored dashboard designed specifically for generative AI solutions. All your requests can be accessed in one centralized location, where you can sort them by time, users, and various attributes. Monitor costs linked to each model, user, or conversation to make educated choices. Utilize this valuable data to improve your API usage and reduce expenses. Additionally, by caching requests, you can lower latency and costs while keeping track of potential errors in your application, addressing rate limits, and reliability concerns with Helicone’s advanced features. This proactive approach ensures that your applications not only operate efficiently but also adapt to your evolving needs.

Introducing PromptPerfect, a groundbreaking tool designed specifically to enhance prompts for large language models (LLMs), large models (LMs), and LMOps. Crafting the perfect prompt can be quite challenging, yet it is crucial for creating top-notch AI-generated content. Thankfully, PromptPerfect is here to lend a helping hand! This sophisticated tool streamlines the prompt engineering process by automatically refining your inputs for a variety of models, such as ChatGPT, GPT-3.5, DALLE, and StableDiffusion. Whether you are a prompt engineer, a content creator, or a developer in the AI sector, PromptPerfect guarantees that prompt optimization is both easy and intuitive. With its user-friendly interface and powerful features, PromptPerfect enables users to fully leverage the potential of LLMs and LMs, reliably delivering exceptional outcomes. Transition from subpar AI-generated content to the forefront of prompt optimization with PromptPerfect, and witness the remarkable improvements in quality that can be achieved! Moreover, this tool not only enhances your prompts but also elevates your entire content creation process, making it an essential addition to your AI toolkit.

Introducing the first-ever platform tailored specifically for prompt engineers, where users can log their OpenAI requests, examine their usage history, track performance metrics, and efficiently manage prompt templates. This innovative tool ensures that you will never misplace that ideal prompt again, allowing GPT to function effortlessly in production environments. Over 1,000 engineers have already entrusted this platform to version their prompts and effectively manage API usage. To begin incorporating your prompts into production, simply create an account on PromptLayer by selecting “log in” to initiate the process. After logging in, you’ll need to generate an API key, making sure to keep it stored safely. Once you’ve made a few requests, they will appear conveniently on the PromptLayer dashboard! Furthermore, you can utilize PromptLayer in conjunction with LangChain, a popular Python library that supports the creation of LLM applications through a range of beneficial features, including chains, agents, and memory functions. Currently, the primary way to access PromptLayer is through our Python wrapper library, which can be easily installed via pip. This efficient method will significantly elevate your workflow, optimizing your prompt engineering tasks while enhancing productivity. Additionally, the comprehensive analytics provided by PromptLayer can help you refine your strategies and improve the overall performance of your AI models.

Develop, assess, refine, and execute compelling prompts for leading language models and AI systems to enhance your applications and streamline operational workflows. Promptmetheus functions as a robust Integrated Development Environment (IDE) specifically designed for LLM prompts, facilitating automation of processes and the improvement of offerings through the sophisticated capabilities of GPT and other innovative AI technologies. With the rise of transformer architecture, cutting-edge Language Models have begun to match human performance in certain specific cognitive tasks. To fully leverage their capabilities, however, it is crucial to craft the right questions. Promptmetheus provides a comprehensive suite for prompt engineering, embedding features such as composability, traceability, and detailed analytics into the prompt development process, which aids in identifying those essential inquiries while promoting a more profound comprehension of the effectiveness of prompts. This platform not only enhances your interaction with AI systems, but it also empowers you to optimize your strategies for maximum impact.

Klu.ai is an innovative Generative AI Platform that streamlines the creation, implementation, and enhancement of AI applications. By integrating Large Language Models and drawing upon a variety of data sources, Klu provides your applications with distinct contextual insights. This platform expedites the development of applications using language models like Anthropic Claude (Azure OpenAI), GPT-4 (Google's GPT-4), among others, allowing for swift experimentation with prompts and models, collecting data and user feedback, as well as fine-tuning models while keeping costs in check. Users can quickly implement prompt generation, chat functionalities, and workflows within a matter of minutes. Klu also offers comprehensive SDKs and adopts an API-first approach to boost productivity for developers. In addition, Klu automatically delivers abstractions for typical LLM/GenAI applications, including LLM connectors and vector storage, prompt templates, as well as tools for observability, evaluation, and testing. Ultimately, Klu.ai empowers users to harness the full potential of Generative AI with ease and efficiency.

Develop and implement generative AI solutions aimed specifically at engineers instead of just targeting machine learning experts. Remove the inconvenience of switching between different platforms or managing various APIs, enabling you to focus on creativity rather than setup. Take advantage of an easy-to-use interface to craft prompts and work alongside AI. Use parameters effectively to transform your worksheets into reusable formats. Construct workflows that incorporate outputs from various models, including language processing, image analysis, and audio processing. Create organizations to manage and share workbooks with your peers. You can distribute your workbooks publicly or restrict access to specific teams you've established. Engage in collaborative efforts by commenting on workbooks, and easily review and contrast them with your teammates. Design templates that suit your needs, those of your team, or the broader developer community, and quickly access existing templates to see what others are developing. This efficient approach not only boosts productivity but also cultivates a spirit of collaboration and innovation throughout the entire organization. Ultimately, this empowers engineers to maximize their potential and streamline their workflows.

Enhance your prompts through the application of version control methodologies while maintaining their integrity. Create an auto-generated API that provides seamless access to your prompts. Before any updates to production prompts are implemented, carry out thorough end-to-end testing of your LLM to ensure reliability. Promote collaboration on a cohesive platform where industry specialists and engineers can work together. Empower your industry experts and prompt engineers to innovate and perfect their prompts without requiring programming knowledge. Our testing suite allows you to craft and run an unlimited array of test cases, guaranteeing top-notch quality for your prompts. Scrutinize for hallucinations, identify potential issues, assess edge cases, and more, as this suite exemplifies the utmost complexity in prompt design. Employ Git-like features to manage your prompts with precision. Set up a unique repository for each project, facilitating the development of multiple branches to enhance your prompts. You have the ability to commit alterations and review them in a controlled setting, with the flexibility to revert to any prior version effortlessly. With our real-time APIs, a single click can refresh and deploy your prompt instantly, ensuring that the most current versions are always available to users. This streamlined approach not only boosts operational efficiency but also significantly improves the dependability of your prompt management, allowing for a more robust and dynamic environment for continuous improvement. Ultimately, this process fosters innovation and adaptability in prompt engineering.

Elevate your team's prompt engineering skills by ensuring exceptional outputs from LLMs through systematic testing and comprehensive evaluation. Simplify the process of crafting and managing your prompts, enabling easy templating, storage, and organization of prompt configurations. With the ability to perform automated tests and obtain in-depth results in mere seconds, you can save precious time and significantly enhance productivity. Carefully organize your prompt settings for quick deployment, allowing seamless integration into your software solutions. Innovate, test, and implement prompts with outstanding speed and efficiency. Equip your entire team to harmonize technical execution with real-world applications effectively. Utilizing PromptPoint’s user-friendly no-code platform, team members can easily design and assess prompt setups without technical barriers. Transition smoothly across various model environments by effortlessly connecting with a wide array of large language models on the market. This strategy not only boosts collaboration but also inspires creativity throughout your projects, ultimately leading to more successful outcomes. Additionally, fostering a culture of continuous improvement will keep your team ahead in the rapidly evolving landscape of AI-driven solutions.

Unleash your creativity with PromptPal, the leading platform crafted for discovering and sharing exceptional AI prompts. Generate new ideas and boost your productivity as you leverage the power of artificial intelligence through PromptPal's rich selection of more than 3,400 free AI prompts. Explore our remarkable library of suggestions to uncover the motivation you need to enhance your work today. Browse through our extensive collection of ChatGPT prompts, which will further ignite your inspiration and efficiency. Moreover, you can turn your creative talents into income by contributing prompts and demonstrating your prompt engineering skills within the vibrant PromptPal community. This platform serves not only as a resource but also as an energetic center for collaboration and groundbreaking ideas, fostering an environment where innovation thrives. Join us and be a part of a community that champions creativity and collective growth.

Meet Ape, an innovative AI prompt engineer equipped with cutting-edge features like dataset curation, tracing, batch testing, and thorough evaluations. With an impressive 93% score on the GSM8K benchmark, Ape surpasses DSPy’s 86% and traditional LLMs, which only manage 70%. It takes advantage of real-world data to improve prompts continuously and employs CI/CD to ensure performance remains consistent. By utilizing a human-in-the-loop strategy that incorporates feedback and scoring, Ape significantly boosts its overall efficacy. Additionally, its compatibility with the Weavel SDK facilitates automatic logging, which allows LLM outputs to be seamlessly integrated into your dataset during application interaction, thus ensuring a fluid integration experience that caters to your unique requirements. Beyond these capabilities, Ape generates evaluation code autonomously and employs LLMs to provide unbiased assessments for complex tasks, simplifying your evaluation processes and ensuring accurate performance metrics. With Ape's dependable operation, your insights and feedback play a crucial role in its evolution, enabling you to submit scores and suggestions for further refinements. Furthermore, Ape is endowed with extensive logging, testing, and evaluation resources tailored for LLM applications, making it an indispensable tool for enhancing AI-related tasks. Its ability to adapt and learn continuously positions it as a critical asset in any AI development initiative, ensuring that it remains at the forefront of technological advancement. This exceptional adaptability solidifies Ape's role as a key player in shaping the future of AI-driven solutions.

Promptimize AI is a browser extension that empowers users to enhance their interactions with artificial intelligence with minimal effort. By simply entering a prompt and selecting "enhance," users can transform their original submissions into more impactful prompts, resulting in a notable boost in the quality of AI-generated content. The extension boasts a variety of features, such as instant enhancements, adaptive variables for maintaining a coherent context, a repository for preserving favorite prompts, and compatibility with all major AI platforms including ChatGPT, Claude, and Gemini. This tool is ideal for anyone looking to streamline their prompt creation process, maintain brand consistency, and improve their prompt engineering abilities without requiring extensive expertise. With Promptimize, users can sidestep the intricacies of prompt engineering, as the extension takes care of the challenging aspects. Tailored prompts lead to more precise, captivating, and persuasive AI results. By leveraging this tool, you can not only expedite your prompt creation workflow but also save precious resources, thereby enhancing the efficiency and effectiveness of your AI interactions. Experience the simplicity of Promptimize and revolutionize the way you engage with AI technology, making it a seamless part of your daily operations. This innovative extension is an essential companion for anyone seeking to elevate their AI experience.

Leverage the power of prompts in ChatGPT for a variety of applications, including SEO, marketing, and copywriting. The AIPRM extension offers a specially curated selection of prompt templates tailored for users of ChatGPT. Seize this chance to boost your efficiency with free access today. Prompt Engineers share their most effective prompts, enabling professionals to gain visibility and attract visitors to their sites. AIPRM acts as your all-in-one toolkit for AI prompts, providing you with the essential resources to interact with ChatGPT successfully. Spanning numerous subjects such as SEO tactics, sales methodologies, customer service, and even music lessons, AIPRM guarantees you will never again face difficulties in crafting the perfect prompts. Allow the AIPRM ChatGPT Prompts extension to simplify your experience! These prompts not only facilitate the optimization of your website for improved search engine performance but also contribute to devising innovative product strategies and enhancing sales and support for your SaaS venture. By utilizing AIPRM, you are embracing the AI prompt manager that can transform your workflow dramatically. Now is the ideal moment to elevate your prompting strategy and witness substantial improvements in your productivity!

To produce breathtaking visuals with AI tools like MidJourney, the quality of the prompts you use is crucial. PromptMakr facilitates the easy creation and management of a variety of these effective prompts, offering an intuitive and interactive user experience. This innovative tool streamlines the entire procedure while also boosting your creative capabilities, enabling you to make adjustments and enhancements with ease. As a result, users can maximize their artistic expression and explore new possibilities.

LMOps is a comprehensive stack designed for launching production-ready applications that facilitate monitoring, model management, and additional features. Portkey serves as an alternative to OpenAI and similar API providers. With Portkey, you can efficiently oversee engines, parameters, and versions, enabling you to switch, upgrade, and test models with ease and assurance. You can also access aggregated metrics for your application and user activity, allowing for optimization of usage and control over API expenses. To safeguard your user data against malicious threats and accidental leaks, proactive alerts will notify you if any issues arise. You have the opportunity to evaluate your models under real-world scenarios and deploy those that exhibit the best performance. After spending more than two and a half years developing applications that utilize LLM APIs, we found that while creating a proof of concept was manageable in a weekend, the transition to production and ongoing management proved to be cumbersome. To address these challenges, we created Portkey to facilitate the effective deployment of large language model APIs in your applications. Whether or not you decide to give Portkey a try, we are committed to assisting you in your journey! Additionally, our team is here to provide support and share insights that can enhance your experience with LLM technologies.

Pezzo functions as an open-source solution for LLMOps, tailored for developers and their teams. Users can easily oversee and resolve AI operations with just two lines of code, facilitating collaboration and prompt management in a centralized space, while also enabling quick updates to be deployed across multiple environments. This streamlined process empowers teams to concentrate more on creative advancements rather than getting bogged down by operational hurdles. Ultimately, Pezzo enhances productivity by simplifying the complexities involved in AI operation management.

The xAI PromptIDE is an all-encompassing platform dedicated to both prompt engineering and research into interpretability. This innovative tool streamlines the prompt creation process by offering a software development kit (SDK) that enables the application of complex prompting techniques, complemented by in-depth analytics that detail the outputs generated by the model. We make extensive use of this tool to continuously improve Grok. Designed with the intention of providing engineers and researchers in the community with clear access to Grok-1, the fundamental model behind Grok, the PromptIDE empowers users to effectively explore the capabilities of our large language models (LLMs). At the heart of the IDE lies a Python code editor, which, when combined with the cutting-edge SDK, allows for the implementation of sophisticated prompting methodologies. As users run prompts within the IDE, they receive insightful analytics that cover vital aspects such as tokenization accuracy, sampling probabilities, alternative token suggestions, and comprehensive attention masks. Beyond its primary features, the IDE also includes several intuitive functionalities, such as an automatic prompt-saving option that guarantees all progress is saved without requiring manual intervention. This enhancement of user experience significantly boosts productivity while fostering an environment that encourages experimentation and exploration of new ideas. The combination of these features makes PromptIDE an invaluable asset for anyone looking to delve deeply into the world of prompt engineering.

CometLLM is a robust platform that facilitates the documentation and visualization of your LLM prompts and workflows. Through CometLLM, users can explore effective prompting strategies, improve troubleshooting methodologies, and sustain uniform workflows. The platform enables the logging of prompts and responses, along with additional information such as prompt templates, variables, timestamps, durations, and other relevant metadata. Its user-friendly interface allows for seamless visualization of prompts alongside their corresponding responses. You can also document chain executions with varying levels of detail, which can be visualized through the interface as well. When utilizing OpenAI chat models, the tool conveniently automatically records your prompts. Furthermore, it provides features for effectively monitoring and analyzing user feedback, enhancing the overall user experience. The UI includes a diff view that allows for comparison between prompts and chain executions. Comet LLM Projects are tailored to facilitate thorough analyses of your prompt engineering practices, with each project’s columns representing specific metadata attributes that have been logged, resulting in different default headers based on the current project context. Overall, CometLLM not only streamlines the management of prompts but also significantly boosts your analytical capabilities and insights into the prompting process. This ultimately leads to more informed decision-making in your LLM endeavors.

Collaborate effectively on prompts, evaluate, and manage LLM applications with confidence. Agenta emerges as a comprehensive platform that empowers teams to quickly create robust LLM applications. It provides a collaborative environment connected to your code, creating a space where the whole team can brainstorm and innovate collectively. You can systematically analyze different prompts, models, and embeddings before deploying them in a live environment. Sharing a link for feedback is simple, promoting a spirit of teamwork and cooperation. Agenta is versatile, supporting all frameworks (like Langchain and Lama Index) and model providers (including OpenAI, Cohere, Huggingface, and self-hosted solutions). This platform also offers transparency regarding the costs, response times, and operational sequences of your LLM applications. While basic LLM applications can be constructed easily via the user interface, more specialized applications necessitate Python coding. Agenta is crafted to be model-agnostic, accommodating every model provider and framework available. Presently, the only limitation is that our SDK is solely offered in Python, which enables extensive customization and adaptability. Additionally, as advancements in the field continue, Agenta is dedicated to enhancing its features and capabilities to meet evolving needs. Ultimately, this commitment to growth ensures that teams can always leverage the latest in LLM technology for their projects.

Introducing Narrow AI: Removing the Burden of Prompt Engineering for Engineers Narrow AI effortlessly creates, manages, and refines prompts for any AI model, enabling you to deploy AI capabilities significantly faster and at much lower costs. Improve quality while drastically cutting expenses - Reduce AI costs by up to 95% with more economical models - Enhance accuracy through Automated Prompt Optimization methods - Enjoy swifter responses thanks to models designed with lower latency Assess new models within minutes instead of weeks - Easily evaluate the effectiveness of prompts across different LLMs - Acquire benchmarks for both cost and latency for each unique model - Select the most appropriate model customized to your specific needs Deliver LLM capabilities up to ten times quicker - Automatically generate prompts with a high level of expertise - Modify prompts to fit new models as they emerge in the market - Optimize prompts for the best quality, cost-effectiveness, and speed while facilitating a seamless integration experience for your applications. Furthermore, this innovative approach allows teams to focus more on strategic initiatives rather than getting bogged down in the technicalities of prompt engineering.

AI engineering has the potential to be clear and accessible instead of shrouded in complexity. HoneyHive stands out as a versatile platform for AI observability and evaluation, providing an array of tools for tracing, assessment, prompt management, and more, specifically designed to assist teams in developing reliable generative AI applications. Users benefit from its resources for model evaluation, testing, and monitoring, which foster effective cooperation among engineers, product managers, and subject matter experts. By assessing quality through comprehensive test suites, teams can detect both enhancements and regressions during the development lifecycle. Additionally, the platform facilitates the tracking of usage, feedback, and quality metrics at scale, enabling rapid identification of issues and supporting continuous improvement efforts. HoneyHive is crafted to integrate effortlessly with various model providers and frameworks, ensuring the necessary adaptability and scalability for diverse organizational needs. This positions it as an ideal choice for teams dedicated to sustaining the quality and performance of their AI agents, delivering a unified platform for evaluation, monitoring, and prompt management, which ultimately boosts the overall success of AI projects. As the reliance on artificial intelligence continues to grow, platforms like HoneyHive will be crucial in guaranteeing strong performance and dependability. Moreover, its user-friendly interface and extensive support resources further empower teams to maximize their AI capabilities.

DagsHub functions as a collaborative environment specifically designed for data scientists and machine learning professionals to manage and refine their projects effectively. By integrating code, datasets, experiments, and models into a unified workspace, it enhances project oversight and facilitates teamwork among users. Key features include dataset management, experiment tracking, a model registry, and comprehensive lineage documentation for both data and models, all presented through a user-friendly interface. In addition, DagsHub supports seamless integration with popular MLOps tools, allowing users to easily incorporate their existing workflows. Serving as a centralized hub for all project components, DagsHub ensures increased transparency, reproducibility, and efficiency throughout the machine learning development process. This platform is especially advantageous for AI and ML developers who seek to coordinate various elements of their projects, encompassing data, models, and experiments, in conjunction with their coding activities. Importantly, DagsHub is adept at managing unstructured data types such as text, images, audio, medical imaging, and binary files, which enhances its utility for a wide range of applications. Ultimately, DagsHub stands out as an all-in-one solution that not only streamlines project management but also bolsters collaboration among team members engaged in different fields, fostering innovation and productivity within the machine learning landscape. This makes it an invaluable resource for teams looking to maximize their project outcomes.

Aim functions as an all-encompassing platform designed for documenting every aspect of AI metadata, encompassing experiments and prompts, while providing a user-friendly interface for comparison and analysis, along with a software development kit for executing programmatic queries. This open-source, self-hosted tool is specifically engineered to efficiently handle vast numbers of tracked metadata sequences, numbering in the hundreds of thousands. The primary uses of AI metadata revolve around experiment tracking and prompt engineering, which are essential for optimizing AI performance. Furthermore, Aim features a visually appealing and high-performance interface that not only simplifies the exploration but also enhances the comparison of various training runs and prompt sessions, thereby improving the overall user experience in the field of AI development. With its robust capabilities and user-centric design, Aim emerges as an indispensable asset for professionals working on cutting-edge AI initiatives. Its comprehensive features cater to the diverse needs of AI practitioners, making it a favorite choice in the community.

The AI Tools Kit acts as a multifaceted platform aimed at boosting productivity by integrating resources for AI, writing, SEO, social media, and marketing all within a single interface. Users can access an extensive selection of FREE tools, which includes an AI Art Generator, Prompt Engineering Tool, an AI Undetectable Rewriter, and a Keyword Research Tool that provides insights on CPC, Search Volume, and Difficulty metrics. Moreover, it boasts an AI Image Optimizer and a premium Text to Speech feature, while users eagerly anticipate the introduction of ChatGPT4, along with tools for background removal from images, Instagram hashtag generation, image quality enhancement, and trending YouTube tag discovery. The kit is further equipped with utilities such as a URL shortener, backlink creator, QR code generator, and keyword providers specifically designed for various search engines. To enhance user experience, it also includes an SEO report generator for websites, a complimentary plagiarism checker, and a password strength evaluator. Additionally, users can benefit from features like a speech-to-text converter, an online PDF editor, an image text extractor, and an AI-driven content generator, plus over 50 other remarkable tools that are tailored to elevate productivity and creativity. This extensive collection of functionalities significantly positions the AI Tools Kit as a crucial asset for individuals aiming to optimize their digital workflows. Ultimately, it embodies a one-stop solution to meet various digital needs efficiently.

SpellPrints empowers creators to develop and profit from generative AI-driven applications. It offers a comprehensive toolkit that includes access to more than 1,000 AI models, user interface components, payment solutions, and prompt chaining functionalities. This streamlined approach enables prompt engineers to effectively convert their expertise into viable business ventures. Creators can easily adapt prompts or AI models into apps that can be monetized and shared through both user interfaces and APIs. Additionally, we are establishing a dual ecosystem that serves as both a platform for developers and a marketplace for users to discover and utilize these innovative applications. This initiative not only fosters creativity but also enhances collaboration within the tech community.