About utilnook
utilnook is an independent collection of free tools for everyday tasks: merging and compressing PDFs, converting and resizing photos, editing video, viewing 3D models, formatting JSON and generating passwords. Each tool loads fast and works on your phone. Everything runs in your browser, so nothing you enter is uploaded, there is nothing to sign up for, and the tools keep working even on a slow connection once the page has loaded.
The site is built with open-source code and fonts. They, and their licenses, are listed on the open-source licenses page.
The tools
- JSON formatter
- UUID generator
- Base64 encoder
- URL encoder
- Password generator
- Word counter
- Case converter
- Slug generator
- Remove duplicate lines
- Unix timestamp converter
- JWT decoder
- Hash generator
- JSON to CSV converter
- Color converter
- Regex tester
- Diff checker
- YAML to JSON converter
- QR code generator
- Image converter
- PNG to JPG
- JPG to PNG
- WebP to JPG
- WebP to PNG
- JPG to WebP
- Image resizer
- EXIF remover
- Crop and rotate image
- SVG to PNG converter
- Favicon generator
- Image compressor
- HEIC to JPG
- HEIC to PNG
- 3D model viewer
- STL viewer
- STEP viewer
- 3D model converter
- 3D print cost calculator
- Merge PDF
- Split PDF
- Rotate PDF
- Delete and reorder PDF pages
- PDF to JPG converter
- PDF to PNG
- JPG to PDF converter
- PNG to PDF
- Compress PDF
- Password protect PDF
- Add page numbers to PDF
- Watermark PDF
- Sign PDF
- PDF to text
- Crop PDF
- Edit PDF metadata
- Unlock PDF
- Blur and pixelate image
- QR code reader
- Percentage calculator
- Age calculator
- Date calculator
- Will it fit?
- Video editor