Free · 100% in your browser
Free AI prompt tools
Tools to expand, generate, inspect, upgrade and adapt your prompts for ChatGPT, Gemini, Claude, Midjourney and AI video, plus a free resume builder. Nothing leaves your browser.
Pro Prompt Generator
Type a short idea and get a detailed, ready-to-paste prompt for images, video, photo edits or ChatGPT, built from PromptUp’s library.
- Auto-detects the type
- Adds lighting, camera & mood
- New variation in one click
Improved prompt · 228 words“Enhance this photo into a sharp, clean image. Repair scratches, keep every face identical…”
← Drag to compare → · AI-generated example
Prompt Idea Generator
No idea yet? Get a random, ready-to-use prompt, filtered by category and AI tool.
- Filter by category & tool
- Re-roll for another idea
- One-tap copy
Prompt Analyzer
Score any prompt against 7 quality signals and get suggestions to remove guesswork.
- Checks role, task & context
- Audits format & limits
- Flags vague filler words
Prompt Optimizer
Turn a rough, vague instruction into a well-formed prompt with a side-by-side view.
- Adds an expert role
- Adds [FIELD] blanks
- Before & after view
Prompt Converter
Move a prompt between ChatGPT style, Midjourney parameters, AI video shot lists, JSON or a system prompt.
- Chat to Midjourney tags
- Prompt to JSON for APIs
- Instruction to system prompt
Writing Checker New
Paste an email or post and see the stock words, openings and rhythm that make writing sound generic, with a rewrite prompt.
- Marks stock AI words
- Checks openings, endings and bullets
- Style checker, not a detector
PDF Data Extraction Prompt New
Build a prompt that asks an AI for the exact quote and page behind every value in a contract, invoice or paper.
- Contracts, invoices, papers
- NOT_FOUND instead of guesses
- Table, JSON or CSV answer
Agent Rules Generator New
Get a rules file for Claude Code, Cursor, Codex or Copilot in the right format, plus a spec, a build plan with checks and the first prompt.
- CLAUDE.md, AGENTS.md, Cursor rules
- Reads your package.json
- Scores any rules file
Make something to share
Before and After Photo Maker New
Add your photo and the AI result. Get one picture with BEFORE and AFTER labels for an Instagram post, a story or WhatsApp status.
Make my picture →
Photo Prompt Generator New
Describe the picture in a few words, then pick the AI app, style, light and size. Get a ready photo prompt, with an option to keep your face the same. Cinematic mode adds lens, light set-up, film stock and grade.
Open tool →
Video Prompt Templates New
Five video prompt templates: camera moves, product ads, character animation, Reels and image to video. Cinematic mode plans a 3 to 6 shot list with one look locked across every clip, for Veo, Kling, Runway or Seedance.
Open tool →
Retro Time Machine New
Turn your photo into a real-looking 70s, 80s or 90s picture: Bollywood star, family album, Diwali night or garba.
Open tool →
Make It Look Real New
Paste an AI photo prompt. Take out the words that make it look fake and add real skin, phone light and natural colours.
Open tool →
Vision Board Maker New
Type your goals for 2027, pick a style and download your board as a picture or phone wallpaper.
Open tool →
Festival Studio New
Type your names, add your photo and get a Diwali, Karwa Chauth, Christmas or Pongal card to send on WhatsApp, plus wishes you can copy.
Open tool →
Birthday Studio New
Type a name and an age, pick a cute, funny, elegant, retro or cinematic style, and get a birthday card to send on WhatsApp, plus wishes to copy and a name-on-cake AI prompt.
Open tool →
Wedding Studio New
Type your names, the date and the city and get a save-the-date, engagement, haldi, mehndi or sangeet card in Indian, western or minimal style, with AI photo prompts that have your names in.
Open tool →
Caption Studio New
Pick the post and the mood (funny, aesthetic, Hinglish or confident), copy captions with hashtags, write a bio, and check your own caption against the PromptUp checklist.
Open tool →
Reel Hook Generator New
Type a topic and get five hooks, a timed beat-by-beat script, a storyboard with an AI video prompt for every scene, a caption with hashtags and a hook card to post. Hinglish too.
Open tool →
Image to Prompt New
Drop in a picture and see what is really hidden in it: the prompt an AI app saved, camera data, a location warning and its colours. Then add the subject and get prompts for Gemini, ChatGPT and Midjourney. Nothing is uploaded.
Open tool →Prompt Doctor New
Paste a prompt that gave a bad result. See what it is missing and get a fixed version that keeps your words.
Open tool →
Resume Builder New
Upload your old resume or start fresh, get a free ATS check, pick from 8 templates and download a PDF or Word file.
Open tool →Which tool should you use?
Prompt generators by AI tool: Gemini · ChatGPT · Claude · AI video · Midjourney · AI image · Photo editing.
Want to write better prompts from scratch? Read how to write a good AI prompt, or print the free prompt-writing checklist (PDF).
Questions, answered
Are these AI tools free to use?
Yes, every tool on PromptUp is 100% free with no account or sign-up required.
Is my prompt data private?
Yes. Every tool runs entirely in your browser using local client-side heuristics. No text is ever sent to external AI servers or logged anywhere. The Resume Builder also makes its PDF on your device; your details are never uploaded.
Which tool should I use first?
If you don't have a prompt yet, use the Prompt Idea Generator for a random starting point. If you have an existing prompt, use the Prompt Analyzer to check for missing signals. If you only have a rough idea, use the Prompt Optimizer to build a structured 5-part prompt. If you want to switch between ChatGPT and Midjourney or Veo, use the Prompt Converter.
Do these tools work on mobile devices?
Yes. All tools are fully responsive and work seamlessly on phones, tablets, and desktop browsers.
Your prompts never leave your browser.
- No AI APIsWe never send what you paste to OpenAI, Google or Anthropic.
- No serverEvery tool runs as code inside this page.
- No accountNo sign-up and no prompt tracking.