All tools

Calculate profit, margin, and markup from revenue and cost. Includes reverse calculation.

Compress JPG, PNG, WebP, and AVIF images in your browser. Batch processing supported.

Combine multiple PDF files into one document. Reorder pages before merging.

Convert JPG and PNG images to PDF with page size, orientation, and margin controls.

Convert PDF pages to JPG images. Select pages, set quality, and download as ZIP.

Create professional invoices with line items, tax, and logo. Download as PDF.

Format, validate, and minify JSON. Tree view with syntax error highlighting.