AI Tool Directory

Stylize is a photo editing app that uses AI models to improve and transform images. Its core features include:

Stylized is an AI-powered photo studio that lets you create professional product photos using just your smartphone. It offers a free Basic plan and a Pro plan at $20 per month, with features including background removal, a virtual lightbox, and advanced 3D materials. You can also earn free credits by referring friends.

The Subject Line Generator is an AI tool that helps newsletter creators write subject lines that get emails opened. You provide the newsletter topic, target audience, and desired tone, and it generates a list of relevant, tailored subject line suggestions. It also lets you track how your emails perform so you can refine future campaigns.

Sublayer is an AI-powered agile project management tool. It uses generative AI, including LLMs like GPT-4, to create project stories, break them down into manageable tasks, and generate instructions for completing each one. It also serves as a central hub for managing AI products, supports branching conversations to preserve context, and regularly updates its AI prompts. Pricing plans are available for individuals and teams.

Submagic is an AI-powered video editing platform for producing short-form content quickly. Its features include auto-accurate captions in 48 languages, trendy templates and emojis, B-rolls and transitions, auto-zooms, automatic sound effects, and AI-generated descriptions with hashtags. It is built for creators, teams, and agencies who want to produce professional, engaging videos efficiently.

SubPage.app is a no-code platform for businesses to create and manage essential website subpages — blogs, changelogs, policy pages, and help centers. It includes a page-based editor, consistent branding across pages, and ready-to-use features like search boxes and support forms. Teams can collaborate in real time, view custom analytics, and benefit from SEO-optimized design. SubPage also offers AI assistance for content creation, image generation, blog scheduling, plagiarism checking, content calendar management, and SEO report generation. Additional features include review comments, multiple blog layouts, and Zapier integration.

Subtitlebee is a subtitling tool popular among influencers and vloggers. It makes adding captions and subtitles to videos straightforward, which helps keep viewers engaged. Research by "Bu Socialy" named it the top automatic captioning and subtitling tool. It features a user-friendly interface and lets you crop videos so subtitles stay front and center. Privacy is a priority: you keep full control of your videos — nothing is shared, sold, or used without your permission, and you can delete your content from their servers at any time.

Subtxt is an AI-powered writing assistant that helps authors develop better, more engaging stories. It analyzes your writing with narrative-focused algorithms, offering feedback and suggestions to refine your concepts. Subtxt lets you build a story outline or framework without being locked into rigid methods, making story development smoother. Whether you're a professional, a natural storyteller, or writing for fun, Subtxt can help you sharpen your skills and craft stories that resonate.

Success.ai is an email marketing platform for managing email campaigns. Its features include detailed analytics, email validation, bulk domain testing, inbox rotation, and an AI-powered writer for personalized messages. It also provides access to a database of over 700 million verified B2B leads. A free 14-day trial is available, with no contracts or hidden fees.

Sudowrite is an AI-powered writing assistant designed to help writers create content more efficiently. It offers personalized writing suggestions, grammar and vocabulary refinement, creative idea generation, and help organizing your thoughts so your writing flows smoothly. The goal is to enhance your own creative process rather than churn out words for you.

SuggestCat is an AI plugin for web-based text editors. It checks text for grammatical and stylistic mistakes, and beyond fixing errors, it offers AI-powered suggestions to improve text, transform it into different styles, or translate it. The plugin includes an admin dashboard for managing its features. It currently works with ProseMirror and TipTap editors, with support for more planned.

Suit Me Up is a service that uses AI to create lifelike pictures of you dressed in suits. You upload your own photos, and it generates 20 different suit-wearing images — suitable for resumes, LinkedIn profiles, or dating apps like Tinder.

Suki AI is a voice assistant built for doctors and healthcare professionals. It handles administrative busywork such as paperwork, scheduling, and writing up patient notes, freeing clinicians to spend more time with patients. You can speak to Suki and it will update electronic health records (EHRs) and automatically write clinical notes. The AI learns your preferences over time, offering smarter suggestions and improving accuracy. Using Suki can help doctors save time, reduce stress and burnout, and improve the experience for both patients and the medical team.

SumlyAI sends AI-generated podcast notes and summaries straight to your inbox. Summaries are created with AI and then reviewed by humans for quality. Supported shows include "Huberman Lab," "Lex Fridman Podcast," "The Tim Ferriss Show," "The Knowledge Project with Shane Parrish," and "Deep Questions with Cal Newport," with more being added. A 7-day free trial is available before subscribing.

Summaletter is an AI tool that condenses all of your newsletter subscriptions into a single digest. Instead of working through a crowded inbox, you receive one summary covering the key points from everything you've signed up for. It was developed by Bubble, supports newsletters in multiple languages, and can also handle RSS feeds.

SummarAIze is an AI-powered tool that transforms audio and video content into a range of marketing formats, including social media posts, email content, summaries, and quotes. It automates the repurposing process with features like timestamped quotes, question-and-answer sections, and full transcripts. Content creators can use it to increase their output, reach a wider audience, and get more value from resources such as podcasts and webinars.

Summarify is an iOS app that uses ChatGPT and OpenAI to create summaries of YouTube videos. You can choose from different summary styles, get timestamps to jump to key moments, and view chapter summaries or summaries of specific video sections. Summaries can be exported as PDF, Markdown, or plain text. The app also allows direct search within YouTube videos, transcript downloads, and tracks time saved by summarizing instead of watching videos in full.

Summarify.me is an AI-powered summarization tool developed by 1811 Labs. It condenses lengthy content from a wide range of sources — blogs, PDFs, plain text, websites, YouTube videos, and audio links — into concise, easy-to-understand summaries. You can paste text directly, upload a PDF, enter a web or blog URL, or provide a YouTube video or audio link. The tool produces both instant and detailed summaries, supports multiple languages, and offers writing styles modeled on figures like Naval Ravikant, Elon Musk, Balaji Srinivasan, Joe Rogan, and Jordan Peterson.