Free Online Tools
6 free browser-based tools: ID/passport validator, secure password generator, image converter, QR code creator, unit converter, and PDF generator.
Free online tools that work directly in your browser. No registration, no ads, no data sent to any server.
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ID & Passport Validator
Check Spanish DNI/NIE/NIF and European passports instantly
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Secure Password Generator
Generate strong random passwords. Nothing leaves your browser
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Image Converter
Convert JPG, PNG and WebP locally — no upload, no server
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QR Code Generator
Create QR codes for URLs, text, WiFi. Download as PNG
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Unit Converter
Weight, temperature, length, volume, speed and more
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PDF Generator
Turn text into a downloadable PDF instantly
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Chat Nick Generator
Create original, unique nicknames for chat. Copy in one click.
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Word & Character Counter
Count words, characters, sentences, paragraphs and reading time
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Percentage Calculator
3 modes: % of a number, what % is X of Y, increase/decrease by %
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BMI Calculator
Body Mass Index based on WHO categories. Instant, no data stored.
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Color Converter HEX, RGB, HSL
Convert HEX, RGB, HSL — visual picker and one-click copy
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Date & Days Calculator
2 modes: days between dates, and add/subtract days from a date
Looking for calculators? → Free online calculators — salary, mortgage, currency and more →
💬 Chat with the community
Share tricks and tips with other users in the chat.