Calculator Hub: free online calculators for quick decisions
A collection of practical calculators for percentages, VAT, loans, dates, BMI, calories and unit conversion.
Read →Blog
Articles and updates from the lab.
20 articles — Per page 2/2
How to Create a Free QR Code Online: URL, WiFi, vCard and More
Create QR codes for URLs, WiFi, vCards, email and phone directly in your browser. Add a logo, choose colors, and download PNG or SVG without signup.
Read →
How to Merge PDF Files Online for Free, No Software Required
Combine PDF files online, reorder them with preview cards, and download one clean document. No installation or signup required.
Read →
How to Remove the Background from an Image for Free: Automatic Tool
Remove the background from an image automatically and download a transparent PNG. No signup required, useful for products, profiles and presentations.
Read →
Compress Images Online for Free Without Losing Quality
How to reduce the file size of JPG, PNG and WebP images in seconds, free and with no signup: a practical guide with tips on picking the right quality level.
Read →
MindDice: multilingual multiplayer quiz game with dice for groups
MindDice is a live quiz game with dice, a board, phones as controllers, 6 categories and 1200 questions available in 9 languages.
Read →
Wheel of Names: random picker wheel for draws and decisions
Use a customizable picker wheel to draw names, choose winners, split tasks or make random decisions in a transparent and fun way.
Read →
PDF Tools: free online tools to merge, split, compress and protect PDFs
A practical PDF toolkit for everyday document tasks: merge, split, compress, rotate, delete pages, protect, unlock and remove metadata.
Read →
Arcade Games: retro-inspired browser games you can play instantly
Play retro-inspired browser games without downloads or signup. Quick sessions, keyboard controls, mobile controls and chiptune audio.
Read →
VoxLab: real-time interactive presentations
Turn a presentation into a live session: the audience answers from their phones and results update instantly with polls, word clouds and quiz slides.
Read →