Useful tools,
without the noise.
Free, fast and privacy-friendly tools for images, PDFs, calculations, code and text. Your files stay on your device.
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63 toolsImage Tools
Compress, resize and convert images between PNG, JPG and WebP, plus a favicon generator, color picker and watermark tool — all in your browser.
PDF Tools
Merge, split, compress, rotate and watermark PDFs, or convert to and from JPG — processed locally, with nothing ever uploaded to a server.
Calculators
Percentage, BMI, loan EMI, interest, date and unit calculators, plus a bill splitter for group expenses — everyday math made simple.
Developer Tools
JSON formatter and diff checker, JWT decoder, hash generator, regex tester, QR code and UUID generators, plus formatters for HTML, CSS, SQL and more.
Text & Writing Tools
Count words, clean up messy text, compare two versions, convert case, generate slugs and more — simple tools for writers and editors.
Popular tools
Image Compressor
Reduce image file size in your browser while keeping quality you control.
Image Format Converter
Convert between PNG, JPG and WebP images — pick the format you need from one tool.
Merge PDF
Combine multiple PDF files into one, in the order you choose.
Compress PDF
Shrink a PDF by recompressing its embedded photos, with Extreme, Recommended, and Less compression presets.
BMI Calculator
Calculate your Body Mass Index using metric or imperial units.
Bill Splitter
Split shared expenses across up to 10 saved groups and see exactly who owes whom.
JSON Diff Checker
Compare two JSON documents side by side and see exactly what changed.
QR Code Generator
Create a downloadable QR code from any text or URL.
JSON Formatter
Format, validate and minify JSON with clear error messages.
Word Counter
Count words, characters, sentences and lines as you type.
Text Cleaner
Remove extra spaces, empty lines and duplicate lines from messy text.
Why ToolBox
Privacy by default
Most tools process your files locally in the browser. Nothing is uploaded to a server.
Fast, every time
No sign-up, no waiting on uploads. Open a tool and get your result in seconds.
Works offline
Once a tool has loaded, it keeps working even without an internet connection.