Free Online Tools
All the tools you keep opening separate tabs for — image converter, background remover, PDF converter, character counter, VAT calculator — in one place, free. Plus MBTI and color blindness tests, and browser games for when you need a break. Open a page and start. No account, no install.
Image Tools
Image Converter
Convert between PNG, JPG, WEBP, GIF, SVG, and ICO. Download your converted image straight away. No upload needed — the whole thing runs in your browser.
Image Background Remover
Remove backgrounds with AI and download transparent PNGs. No sign-up; processing runs in your browser only.
Image Person Remover
Remove people (foreground) with AI and keep the background. Removed areas are transparent; no inpainting. Runs in your browser only.
Image Crop
Select any area of your image by dragging, then crop it instantly. Nothing gets uploaded — it all runs right in your browser.
Image Rotate
Rotate any image 90°, 180°, or 270° — clockwise or counterclockwise. Fast, free, and your photo never leaves your browser.
Image Resize
Resize an image to exact pixel dimensions. Lock the aspect ratio so nothing gets stretched. Files stay local — no upload, no waiting.
Image Compress
Drag the quality slider and watch the file size drop in real-time. Export as JPEG or WEBP. The compression runs entirely in your browser — your image is never uploaded.
Find Matching Colors
Enter a color code (#10ACDD) or RGB(16,172,221) to get 5 matching color recommendations. Pick colors from the palette or let HEX and RGB auto-convert. Great for design, web development, and branding.
Popular Tools
Character Counter
Count characters, words, and bytes in real-time. Perfect for Twitter, Instagram, blogs, and emails when you need to check character limits. Supports all languages and shows byte count for developers and data entry. No sign-up required.
JSON Formatter
Format and validate JSON data with syntax checking. Essential for developers working with API responses, config files, or data exchange. Beautify or minify JSON for readability or size optimization. Works entirely in your browser.
PDF Converter
Combine multiple images into one PDF, or pull specific pages out of a PDF as images. Supports JPG and PNG, reorder or delete pages freely. Your files never leave your browser.
VAT Calculator
Calculate VAT from supply price or split total amount into supply price and tax. Useful for businesses, freelancers, and small business owners for tax reporting and invoice preparation. Supports 10% default rate and 0% exempt. Get instant results with simple input.
Tests
Free MBTI Personality Test
Find which of 16 MBTI types fits you with 20 quick questions across EI, SN, TF, and JP. Free, no sign-up, shareable results.
Intuitive Choice Psychology Test
Choose what comes to mind first in this 5-question, 4-option psychology test. Your unconscious preferences reveal a hidden personality type based on your most-chosen answer (A, B, C, or D). The more intuitive your answers, the more meaningful the result.
Color Blindness / Weakness Test
Ishihara-style plates for a quick informal color vision check. For screening only—see an ophthalmologist for diagnosis.
Guides & Tips
All guides →How Child Height Predictions Work — Measuring, Growth Charts and Parents' Heights
How to measure your child's height reliably at home, how to read growth chart percentiles, how the mid-parental height formula works, and what a home estimate cannot tell you.
Is It Safe to Upload Photos to Online Tools? How to Check for Yourself
How to tell whether an online image tool uploads your photo or processes it in your browser, using the Network tab in Chrome or Edge — plus a few habits worth having before you upload anything.
Image Size Guide for Instagram, YouTube, and Social Media
A complete reference of recommended image dimensions for every major platform. Learn how to resize your images to exact pixel sizes before uploading.
Why Webooro?
🔒 Privacy by design
The image, PDF and text tools process your files entirely in your browser, so the images and documents you pick are not uploaded to our server. The few exceptions (IP lookups, the Korean growth report) are explained on the privacy page.
⚡ No friction
No installation. No registration. No paywall. Open any page and start working immediately. The tools load fast and respond instantly — because your time matters.
🌍 Korean & English
Webooro is available in Korean and English. Tool descriptions, guides and FAQs are prepared for each language rather than shown through automatic translation. Switch at any time.