The Tool Library
Every tool is free, works in your browser, and comes with a full guide. Pick a category to filter.
Word Counter
Count words, characters, sentences & reading time instantly.
Open tool → AIBusiness Name Generator
Generate brandable business & startup names in seconds.
Open tool → AIHashtag Generator
Get relevant hashtags for Instagram, TikTok & more.
Open tool → FreePassword Generator
Create strong, secure passwords with custom rules.
Open tool → FreeCase Converter
Convert text to UPPER, lower, Title & sentence case.
Open tool → FreeQR Code Generator
Turn any link or text into a downloadable QR code.
Open tool → FreePercentage Calculator
Work out percentages, increases & differences.
Open tool → FreeUnit Converter
Length, weight, temperature, volume & speed.
Open tool → FreeAge Calculator
Your exact age in years, months & days.
Open tool → FreeBMI Calculator
Body Mass Index — metric & imperial.
Open tool → FreeLoan Calculator
Monthly payment, interest & total cost.
Open tool → FreeColor Converter
HEX, RGB & HSL with a color picker.
Open tool → FreeJSON Formatter
Beautify, minify & validate JSON.
Open tool → FreeCharacter Counter
Count characters with live platform limits.
Open tool → FreeLorem Ipsum Generator
Placeholder text by paragraph, sentence or word.
Open tool → FreeBase64 Encoder
Encode & decode Base64 text instantly.
Open tool → FreeDiscount Calculator
Sale price and savings in seconds.
Open tool → FreeTip Calculator
Tip, total and per-person split.
Open tool → AISlogan Generator
Catchy taglines for any brand.
Open tool → AIUsername Generator
Unique handle ideas for any platform.
Open tool → FreeUUID Generator
Random UUID v4 values in bulk.
Open tool → FreeImage Resizer
Resize to exact pixels — private, no upload.
Open tool → FreeImage Compressor
Shrink file size with a live quality slider.
Open tool → FreeImage Converter
PNG ↔ JPG ↔ WebP in one click.
Open tool → FreeRotate & Flip Image
Fix orientation or mirror an image fast.
Open tool → FreeImage Cropper
Crop to any area or preset ratio.
Open tool → FreeAdd Text to Image
Captions, titles & watermarks with live preview.
Open tool → FreeRound Image Maker
Circle-crop profile pics with transparent PNG.
Open tool → FreeReverse Text
Flip letters, words or lines backwards.
Open tool → FreeRemove Line Breaks
Clean up broken PDF & email text.
Open tool → FreeText to Slug
SEO-friendly URL slugs from any title.
Open tool → FreeFind & Replace
Bulk-swap words with live match count.
Open tool →AI Email Writer
Draft professional emails from a one-line prompt.
Coming soonAI Paragraph Writer
Generate clear paragraphs on any topic.
Coming soonNot just tools — the playbook
Most sites dump a tool on you and walk away. We pair every tool with guidance so you get a result you can actually use.
Real working tools
Built and owned by us — not a directory of links to someone else's apps.
Guides & examples
Every tool includes how-to steps, real examples and an FAQ.
Instant & private
Runs in your browser. No sign-up, no waiting, nothing stored.
Earn with AI
Tutorials on turning these tools into real income online.
Make Money with AI
Practical, honest guides on using AI tools to earn — freelancing, content, side hustles and small business.
About AI Toolbox
AI Toolbox is on a mission to make AI genuinely useful for everyone — not just people who already know the prompts. We build free, focused AI tools and teach you exactly how to get the most out of each one. New tools and guides ship every week.