Free Online Tools
Compress images, merge PDFs, format JSON, calculate percentages, and more. All tools run in your browser — no uploads, no sign-up, completely free.
Popular Tools
Most used by our visitors
Image Compressor
Compress images online for free. Reduce file size while maintaining quality. Supports JPG, PNG, WebP.
Merge PDF
Merge PDF files online for free. Combine multiple PDFs into one document. Files stay on your device, never uploaded.
JSON Formatter
Format and validate JSON online for free. Pretty print, minify, and validate JSON with error highlighting.
QR Code Generator
Generate QR codes online for free. Create QR codes for URLs, text, WiFi, and more. Download as PNG image.
Password Generator
Generate strong passwords online for free. Customize length and character sets. Includes strength meter.
Image Resizer
Resize images online for free. Change image dimensions by pixels or percentage. Maintain aspect ratio.
BMI Calculator
Free online BMI calculator. Calculate your Body Mass Index using metric or imperial units.
Pomodoro Timer
Stay focused with the Pomodoro Technique. 25-minute work sessions with 5-minute breaks. Customizable intervals.
Word Counter
Free online word counter. Count words, characters, sentences, and paragraphs. Real-time as you type.
Compress PDF
Compress PDF files online for free. Reduce PDF file size without uploading. All compression happens in your browser.
Base64 Encoder / Decoder
Encode and decode Base64 online for free. Text to Base64 and Base64 to text.
UUID Generator
Generate UUIDs online for free. Create random UUID v4 identifiers. Generate single or batch UUIDs.
Percentage Calculator
Free online percentage calculator. Calculate percentages, percentage change, and find what percent one number is of another.
Markdown Editor
Write and preview Markdown online. Split view with live preview. Toolbar for quick formatting.
Text to Speech
Convert text to speech online. Choose voice, adjust speed and pitch. Works entirely in your browser.
Image to PDF
Convert multiple images into a single PDF. Choose page size, orientation, and margins.
Loan Calculator
Calculate monthly loan payments, total interest, and see full amortization breakdown.
Compound Interest Calculator
Calculate compound interest on investments. See how your money grows over time with regular contributions.
Regex Tester
Test regular expressions online for free. Real-time matching with highlighting, capture groups, and flag support.
Stopwatch
Online stopwatch with lap timing. Record split times, pause and continue. Precise millisecond display.