Caption Generation Api
The best 50 Caption Generation Api AI tools - Free & Paid
Explore 50 AI for Caption Generation Api
AI Text Generator creates original drafts, blog posts, emails, reports, and social captions from prompts, keywords or source text. Browser-based, it lets users set length, tone and audience, refine outputs, and copy or download results.
Freemium
The Image Caption Generator is a free online AI tool that generates captions and descriptions for images based on selected tones. You can use it to caption instagram, twitter or any social media post.
Free
CaptionGen is an AI tool that generates captions for images using advanced natural language processing technology and powerful chatbot technology.
Prechance uncensored Image generator, free that requires no sign-up and is unlimited. Generate Images from text prompts without censors.
Free
Canva's AI Image Generators turns text into visuals with customizable art styles and features like Magic Media, Create an Image, and automated reviews.
Freemium
Image Prompt converts uploaded photos into detailed, AI‑optimized text prompts, supports non‑English input, offers object‑recognition analysis, and can generate high‑resolution images directly. Its batch processing, video prompt, and format‑translation features streamline design workflows.
Freemium
- $5.99/mo
TTAPI unifies access to generative AI services—image, video, photorealistic editing, LLM, text‑to‑video, music synthesis, audio production, 3D asset creation, and adaptive storytelling—through a single API, enabling rapid prototyping and deployment across media, design, and publishing.
Paid
Gencolor.ai is an AI coloring page generator that transforms uploaded images or text descriptions into high-quality coloring pages. It produces detailed designs in multiple formats, making it suitable for art therapy and educational applications.
Free trial
SpeechGen.io converts up to 2 million characters into high‑quality neural‑voice audio across 150 languages with 5,000 models. It allows voice, speed, pitch, volume control, SSML tags, background music, multi‑speaker tagging, downloadable formats, and a REST API.
Paid
- $4.99
Upload an image and receive AI‑generated captions in multiple languages and tones, tailored for chosen platforms, with hashtag suggestions. Easily copy, edit, or generate variants while ensuring privacy and server‑side processing.
Free
CapGen automatically generates descriptive captions for JPG, JPEG, PNG, or WEBP images using pretrained vision‑language models. It supports multiple languages, brand‑tone customization, and seamless editing, ready for social‑media use while safeguarding privacy.
Freemium
Free AI Image Generator converts text prompts into diverse visuals, including landscapes and logos. With customizable styles, prompt guidance, and an intuitive interface, it serves marketers and creators by facilitating quick, high-quality image generation for various projects.
Freemium
AI Video API lets developers generate up to 36‑second videos from text or animate images, delivering high‑quality video and optimized GIFs. It offers real‑time webhook updates and SDKs for Python, Node.js, JavaScript, PHP, enabling scalable, low‑latency content creation.
Subscription
GenZWrite humanizes AI output by rewriting text into natural, context-aware prose across modes—Academic, Social, DM, Hustle—producing role-specific tones, alternative drafts, summaries and multilingual rewrites for captions, essays, resumes and cover letters.
Free trial
HandtextAI is an AI handwriting generator that transforms digital text into realistic handwritten documents, offering over 80 fonts, customizable settings, and export options. Users can create authentic notes and letters with personalized styles and visual effects.
Free
LlamaGen.Ai converts text, images, or story ideas into full 4K comics, webtoons, or manga while preserving consistent character designs. It requires no drawing skill, offers API integration, and includes image‑to‑comic, character sheet, and panel segmentation features.
Subscription
- $15/mo
Leonardo is an AI creative platform for generating and editing visual assets from text prompts, offering text-to-image, motion/animation and video editing, custom models and upscaling, plus API access and prompt guidance for production workflows.
Freemium
- $12/mo
NightCafe is an AI art platform for text-to-image and text-to-video generation, prompt-based image editing and image-to-video conversion, offering multiple models, multi-image fusion, upscaling, audio-synced video output, galleries and community collaboration tools.
Freemium
Generate one‑click captions for photos in any language. Upload an image, pick a target platform, and receive a tailored caption from a library of 100+ categories. Copy or download the text directly for use on social media.
Freemium
Mangaka.app converts PDFs, DOCX or TXT stories into ready-to-export manga by auto-generating characters, panels, speech bubbles and page layouts from text. Choose preset or custom styles and download finished pages as PDF or image files.
Freemium
Fotor's AI Text Image Generator, a powerful tool that allows you to create stunning visuals with just a few clicks. You can easily generate images in various art styles, including concept art, realistic, cartoon, sketch, oil painting, digital art, 3D, and more.
Freemium
- $2.83/mo
images2.ai is a high-resolution AI image generator and editor that creates detailed 4096×4096 images with accurate text rendering. It features built-in editing tools for content creation and offers commercial licensing for professional use.
Freemium
Creen AI is an AI image and video generation platform that converts text and images into high-resolution visuals. It offers multiple models and editing tools for creating social media assets, marketing content, and rapid prototypes.
Freemium
Genstory.app is an AI-powered storybook generator that creates fully illustrated digital books and multimedia content from simple text prompts. It instantly generates customizable stories with AI text and images, and includes a vast library for inspiration and sharing.
Freemium
HeyGen automatically produces 1080p/4K videos from text, images, or audio, adding voiceovers, subtitles, and brand‑aligned styles. It supports avatar animation, photo‑to‑video, and multilingual translation with lip‑sync, enabling quick, localized visual content for marketing, training, and social me
Freemium
- $24/mo
OpenAI’s ChatGPT Images, powered by GPT Image 1.5, elevates creative workflows by offering rapid, precise image generation and editing directly within ChatGPT. It’s a versatile tool for visual content creation and design.
Freemium
ImgGen AI is a free online AI image generator that swiftly creates watermark-free images based on text prompts. It offers features like image restoration, color correction, and upscaling, making it a versatile tool for various visual projects.
Free
iPage AI is an AI coloring page generator that converts text and photos into printable coloring pages. It offers batch mode for mass creation and includes access to a library of over 10,000 free coloring pages for commercial use.
Freemium
Prompt Genie is a prompt generator designed to work with ChatGPT and offers unlimited prompt generation without requiring an API key.
Free trial
PixaryAI is an AI image generator that transforms text prompts into high-quality photos, digital art, and illustrations. It offers customizable styles and aspect ratios to rapidly create visuals for content, social media, and marketing materials.
Freemium
- $5/mo
Longshot AI's FactGPT feature generates user-sourced and factually accurate content for current events, opinions, product reviews, comparisons and more, with personalization options and access to citations.
Freemium
- $19/mo
Dezgo's Text-to-image AI Image Generator is a powerful tool that allows users to generate high-quality images based on text descriptions using advanced algorithms and comprehensive features.
Free
Stockimg AI generates logos, illustrations, wallpapers, posters, avatars, stock photos, and short‑form video from text prompts. It auto‑adds audio, subtitles, and offers a social‑media dashboard to edit, schedule, and publish across multiple accounts.
Subscription
- $12/mo
Provides API access to pretrained image generation models for text‑to‑image, image‑to‑image, and inpainting, with real‑time editing. Supports single‑call Dreambooth/LoRA training without local GPU, plus voice cloning, text‑to‑3D, interior design, and video creation.
Paid
- $27/mo
ImageGeneratorAI.io is a browser-based AI image generator that transforms text prompts into high-resolution visuals using models like SDXL and Flux. It offers extensive customization for style, aspect ratio, and composition, enabling rapid creation of marketing assets, concept art, and social media
Free
AIAI is an all-in-one platform that generates videos and images from text prompts. It offers over 150 artistic styles, photo enhancement, and tools to animate pictures into videos.
Free trial
Imagetocaption.ai generates on‑brand captions, hashtags, and emojis for images and videos in 27 languages. Upload photos, carousels, or 2 GB/3‑min videos; instant copy‑to‑clipboard and brand‑voice matching. Useful for creators, agencies, merchants, and e‑commerce.
Subscription
- $100/mo
GPTImage2.dev is a browser-based AI image generator and editor that creates and modifies images from text prompts or reference uploads. It offers advanced editing tools like relighting and style transfer, producing high-resolution assets for marketing, design, and content creation.
Free trial
Convert text to handwriting using an in-browser recurrent neural network with various print and cursive styles. Customize outputs and download as SVG.
Free
Craiyon is an AI model that converts text prompts into images, developed as a lighter version of OpenAI's DALL-E.
Freemium
imagefree.net is a text-to-image AI generator that turns descriptive prompts into visuals across multiple styles like photorealism, anime, and 3D renders. It offers adjustable aspect ratios, lighting cues, and high-resolution outputs for rapid image creation without requiring artistic skills.
Free
QuoteGenerator.io allows users to create and share quotes on various topics, explore quotes from famous figures, and enjoy a humorous "incorrect quote generator." The tool is mobile-optimized and supports user submissions for inclusion in its database.
Free
The SASSbook AI Writer is an AI text generator that creates unique content based on your prompts. It offers word count and style preferences, creative control, and other tools like summarizer and headline generator. Commercial plans with daily limits are available.
Subscription
The AI tool allows users to create custom interactive web pages and chatbots using OpenAI's chat GPT text generation model. It also offers image generation, voice interface, and realistic text-to-speech capabilities.
Free
StarryAI turns text or emojis into high‑resolution images across 1,000+ artistic styles. It supports portrait, illustration, technical drawing creation, photo editing, upscaling, style transfer, background removal, NFT, avatar, and video generation, with full ownership and watermark‑free outputs.
Free
gptimg2.io is a multi-model AI platform for generating and editing images and videos from text. It creates photorealistic or stylized assets, supports pixel-accurate edits, and produces brand-ready visuals for campaigns, mockups, and marketing.
Freemium
- $8.2/mo
ToolBaz offers 85+ free AI tools powered by GPT‑5, Claude, Gemini, Meta‑AI for content marketing, business communication, creative and academic writing, and technical documentation. Includes text‑to‑image, text‑to‑speech, intuitive, privacy‑focused interface.
Freemium
AI writing tools and resources that provide a content generator powered by GPT-3, business idea generator, Facebook Ads Generator, Magic Paragraph Generator, and SEO tool to optimize content for better search engine rankings.
Free trial
- $19/mo
PNG Maker turns typed text into high‑resolution PNG images with transparent backgrounds. Users can set fonts, sizes, colors, and background opacity, review, and download ready‑for‑web graphics. It works directly in the browser and supports batch creation.
Freemium