QGJ Tools - Free online toolbox with everyday calculators, text tools, image tools, developer tools and more

Convert length, weight, area, speed and temperature

Basic arithmetic and percentages

Height & weight to body mass index

Equal payments or equal principal, monthly payment & schedule

Days between dates / add or subtract days

Count workdays in a range, or add/subtract workdays

Estimate retirement age under the latest policy

Exact age, zodiac sign and Chinese zodiac

Test typing speed and accuracy in Chinese and English

Have text read aloud

Split group meal/travel bills into the simplest set of transfers

Convert cups/tablespoons/mL, with ingredient weight reference

Character / word / line count

Convert between camelCase, snake_case and more

Encode and decode text as Base64

Simple letter-shift encryption and decryption

Adjust quality and size to shrink file size

Check image dimensions and convert to Base64

Click an image to pick a pixel's color

AI background removal, processed locally in your browser

Combine multiple images into one PDF

Export each PDF page as a PNG image

Extract PDF text into an editable Word document

Packages a PDF into a password-protected ZIP archive (not native PDF encryption)

Enter a URL to play HLS streams online

Play local audio files with a playlist

Play local video files with a playlist

Convert video formats locally in your browser

Extract plain text content from a Word document

Convert while keeping headings, bold and lists

Convert into Markdown-formatted text

Turn plain text into an editable Word document