FreNiMi Tools

Private by design

Useful online tools.
None of the clutter.

Convert, create, compress, and clean up everyday files in seconds. Core tools run in your browser, so your files never leave your device.

Explore free tools See Pro plan

Built by FreNiMi LLC, a Chicago cybersecurity & DevOps company

No account required
Local file processing
Mobile friendly
10 tools and counting

frenimi.com/tools

Quick start All systems ready

QR code generatorCreate a downloadable QR code Image compressorShrink JPG, PNG, and WebP files Merge PDFCombine documents privately Password generatorGenerate strong random passwords

Toolbox

Pick a task. Get it done.

PDF & file tools

Organize and create documents without uploading them.

Merge PDF

Combine multiple PDF files in the order you choose.

JPG to PDF

Turn JPG, PNG, or WebP images into one PDF.

Image tools

Optimize images for websites, email, and social media.

Image Compressor

Reduce image size with a live quality preview.

Image Resizer

Resize an image to exact pixel dimensions.

Security & developer tools

Small utilities for safer accounts and cleaner data.

QR Code Generator

Create QR codes for links, text, email, and Wi-Fi.

Password Generator

Create strong, random passwords with custom rules.

Hash Generator

Generate SHA checksums for text or files.

JSON Formatter

Validate, format, or minify JSON instantly.

Word Counter

Count words, characters, sentences, and reading time.

Files & PDFs

Merge, convert, and clean up documents — nothing leaves your device.

Combine PDFs, turn images into a PDF, and prep files for sending, all inside your browser. There's no upload queue because there's no upload.

Try Merge PDF

merge-pdf.html

quarterly-report.pdf1.2 MB

appendix.pdf340 KB

signature-page.pdf88 KB

qr-code-generator.html

Security & codes

Generate QR codes and strong passwords in one click.

Create a static QR code for a link, or a cryptographically random password using your browser's own secure generator. Neither one ever touches a server.

Try QR Code Generator

Privacy promise

Your files stay yours.

FreNiMi Tools processes core file tasks inside your browser whenever possible. That means no upload queue, no file retention, and no waiting on a conversion server.

Local processingFiles stay on your device
Fast by defaultNo upload or download delay
Nothing to deleteWe never receive supported files
Provably privateCheck your browser's Network tab — nothing uploads