About QK Tool Hub

Why we run this service

QK Tool Hub brings free browser tools for text, calculations, images and PDF page tasks together. Use the word counter, currency and unit converters, image editor, pixel art tool, world clock and calendar. PDF tools create a PDF from images, merge PDFs, extract or organize pages, and save a PDF page as PNG.

How we design tools

We keep each workflow short and explain supported formats, calculation rules, and limitations on the relevant page. PDF tools work with document pages; OCR and editing original text are not available.

Text and file tools are designed to process content in the browser where practical. External services used for exchange-rate retrieval, site delivery, analytics, or advertising are described separately in the privacy policy.

Checking results

Results that depend on external data or calculations, including exchange rates, holidays, and unit conversions, are references. Verify final values with the relevant bank, authority, or source before an important decision.

Report a problem or contact us

Tell us which tool, browser and steps caused the issue. For PDF problems, include the task and error message. You can contact us without sending your original document.