Free online tools that stay on your device

Compress and convert images, merge and split PDFs, run quick calculations and more. No sign-up, no watermark, and your files are never uploaded.

Image tools

Image CompressorMake JPG, PNG and WebP files smaller.PNG to JPGConvert PNG images to smaller JPG files.JPG to PNGConvert JPG images to lossless PNG.WebP to JPGOpen WebP images anywhere by converting to JPG.Convert to WebPCreate small WebP images for faster websites.Image ResizerChange image width and height in pixels.

PDF tools

Merge PDFCombine several PDFs into one document.Split PDFExtract pages or split a PDF into single pages.JPG to PDFTurn photos and scans into a single PDF.

Calculators

Percentage CalculatorPercent of a number, percent change and more.Age CalculatorExact age in years, months and days.BMI CalculatorBody mass index in metric or imperial units.Loan CalculatorMonthly payment, total interest and yearly breakdown.

Text and developer tools

Word CounterWords, characters, sentences and reading time.JSON FormatterFormat, validate and minify JSON.QR Code GeneratorMake QR codes for links and text, free.

Why Toolswick

Most online converters ask you to upload your files to a server. Every tool here works inside your own browser instead, so your photos, documents and numbers stay with you. It is also faster, because nothing has to travel over the internet.

All tools are free to use, work on phones, tablets and computers, and need no account.