Free Online Utilities
No uploads to our server — everything runs in your browser. Click a tool below.
Image Compressor
Compress JPG/PNG with adjustable quality.
Image Resizer
Resize by width/height with optional aspect lock.
Image to WebP
Convert images to modern WebP format.
Image Filters
Brightness, contrast, saturation and grayscale.
Image Cropper
Crop any rectangle by dragging over the image.
ICO/Favicon Generator
Create .ico from PNG (16–256 px).
JSON Formatter
Validate, pretty‑print and minify JSON.
CSV → JSON
Convert CSV data into a JSON array.
Base64 Encode/Decode
Transform text to/from Base64.
Regex Tester
Test regular expressions with flags.
Text Diff
Compare two texts line‑by‑line.
Password + UUID
Generate strong passwords and UUIDv4.
Color Tools
Pick a color and build a palette; HEX↔RGB.
Timestamp Converter
UNIX time ↔ human date/time.
Lorem/IP Generator
Random lorem ipsum and IPv4/IPv6.
Free online utilities in your browser
Toolbox is a fast set of web tools for images, text and data. Nothing to install — everything runs locally in your browser. Private and convenient.
Why it’s great
- Instant start: open and use.
- Privacy‑friendly: files never leave your device.
- Works on both mobile and desktop.
Popular tools
Most users start with image compression, WebP conversion and JSON formatting.