Free online tools, instantly.

PDF, image, encoders, generators — 30 tools running fully in your browser. No upload, no signup, no watermark. Plus 99 more in Portuguese (BR).

Browse by category

PDF

Compress, merge, split, rotate, watermark, JPG→PDF.

Image

Compress, crop, resize, blur, watermark, webcam.

Generators

Password, UUID, QR Code, Lorem, random numbers.

Encoders

Base64, URL, MD5, SHA, JWT decoder.

Text

Character counter with platform limits.

Utilities

Color picker, ASCII art, slug.

Featured tools

Compress PDF

Reduce file size for email/web.

Merge PDF

Combine multiple PDFs into one.

Compress Image

JPG, PNG, WebP smaller.

Password Generator

Strong + strength meter.

JWT Decoder

Decode JSON Web Token claims.

Color Picker

HEX, RGB, HSL, CMYK + harmonies.

QR Code Generator

URL, vCard, WiFi, email, phone.

Character Counter

Words, Tweet, SEO limits.

Crop Image

Pixel-precise cropping.

Resize Image

Width × height + ratio lock.

Base64

Encode/decode text and files.

SHA Hash

SHA-1/256/384/512.

PDF to Word

Extract text to RTF.

Watermark PDF

Diagonal text stamp.

Webcam Photo

Capture from device camera.

UUID Generator

v4 RFC 4122.

Lorem Ipsum

Placeholder text.

Slug Generator

Text to URL-friendly slug.

Why 4utils

Everything runs in your browser. When you decode a JWT, the token never leaves your machine. When you hash a string, no server sees it. This is not marketing — it's how the code is structured: pure client-side JavaScript, no API calls.

No signup. No paywall. No "free trial". Just open the tool, do the thing, close the tab. The site is small on purpose — fewer features, more reliability.

Looking for a Brazilian tool (CPF generator, INSS calculator, PIS/PASEP)? Visit 4utils.com.br — 98 BR-specific tools live there.