14 free tools · No signup

Free AI tools that actually just work

PDF chat, summarizer, grammar fixer, email writer, tweet generator and more — all free, all cited, all in your browser.

AI Chat Tools

Ask questions, summarize, chat with documents

AI Chat with PDF / Doc
Paste any document text and ask the AI questions about it.
AI Chat ToolsAI-powered
AI Text Summarizer
Summarize long text into clear bullet points instantly.
AI Chat ToolsAI-powered

AI Writing

Emails, blogs, tweets, grammar — write faster

AI Grammar Fixer
Fix grammar, spelling and clarity issues in any text.
AI WritingAI-powered
AI Email Writer
Write professional emails from a short brief.
AI WritingAI-powered
AI Blog Outline
Generate an SEO-friendly blog outline from a topic.
AI WritingAI-powered
AI Tweet Generator
Generate scroll-stopping tweets from any idea.
AI WritingAI-powered

Generators

Scripts, prompts, translations, resumes

AI Translator
Translate text between any two languages.
GeneratorsAI-powered
YouTube Script Writer
Write a full YouTube video script from a topic.
GeneratorsAI-powered
Resume Bullet Writer
Turn job duties into impact-driven resume bullets.
GeneratorsAI-powered
AI Prompt Generator
Generate optimized prompts for any AI model.
GeneratorsAI-powered

Converters

JSON, PDF, image, code — convert anything

JSON to CSV
Convert JSON arrays to clean CSV instantly.
ConvertersRuns locally
CSS & JS Minifier
Minify CSS or JavaScript to reduce file size.
ConvertersRuns locally
Image Format Converter
Convert images between PNG, JPG and WebP.
ConvertersRuns locally
PDF Converter
Convert text or images into a downloadable PDF.
ConvertersRuns locally

Why GurujiAstro tools are different

Every tool runs on the GurujiAstro gateway — the same engine that powers our cited search. You get production-grade models (Google Gemini 2.5 Flash + inclusionai/ring-2.6-1t) for free, with no signup, no daily caps, and no watermark on output. PDF chat and the summarizer parse documents entirely in your browser, so your files never leave your device.

Most popular free AI tools (May 2026)

  • AI Chat with PDF — paste a PDF, ask anything, get cited answers
  • AI Text Summarizer — long articles → TL;DR + bullet points in seconds
  • AI Grammar Fixer — free alternative to Grammarly Pro
  • AI Email Writer — professional email drafts from a one-line brief
  • YouTube Script Writer — hook + script + B-roll cues