AI & Prompt Tools
12 free tools - no sign-up, runs in your browser
Build better prompts, count tokens and prepare AI-ready text. Looking for something specific? Search the full directory.
Prompt BuilderAssemble a well-structured AI prompt from guided fields for role, task, context, tone and output formatAI & Prompt ToolsOpenPrompt Variable FillerFill the {{variables}} in a reusable prompt template and get a finished, ready-to-send promptAI & Prompt ToolsOpenToken CounterCount the tokens in any text with a real tokenizer, so you know exactly how much of a model it usesAI & Prompt ToolsOpenContext Window CheckerSee how much of each AI model's context window your text fills, model by modelAI & Prompt ToolsOpenPrompt Cost CalculatorEstimate what a prompt would cost on pay-per-token AI APIs, compared across popular modelsAI & Prompt ToolsOpenSystem Prompt GeneratorBuild the system prompt behind a chatbot or assistant from persona, rules and behavior fieldsAI & Prompt ToolsOpenFew-Shot Example FormatterTurn your input and output pairs into a clean, consistently labeled few-shot example blockAI & Prompt ToolsOpenNegative Prompt BuilderBuild the negative prompt that tells an image model exactly what to leave out of the pictureAI & Prompt ToolsOpenMidjourney Parameter BuilderBuild a Midjourney prompt suffix visually, with aspect ratio, version, style and quality settingsAI & Prompt ToolsOpenPrompt ShortenerShorten a long prompt to a target length with visible rules, without cutting sentences in halfAI & Prompt ToolsOpenPrompt FormatterClean up a messy pasted prompt into tidy Markdown with fixed spacing, lists and headingsAI & Prompt ToolsOpenWriting Prompt GeneratorGet a random creative writing prompt for fiction, memoir, poetry or journaling whenever you are stuckAI & Prompt ToolsOpen
Frequently asked questions
Yes. Every tool on Ovatly is free to use, with no account and no trial period. The site is supported by advertising and sponsored content, never by charging for tools.