Format JSON and XML, convert timestamps, generate UUIDs and more — fast, installable and private. Every tool runs entirely in your browser, so it works offline and your input never touches a server.
100% private — input never leaves your browser
Works offline once loaded
Free forever · no account · no cookies
Format
2
New
JSON Prettifier
Format, validate and minify JSON — right in your browser.
Format
New
XML Prettifier
Indent and tidy XML documents, feeds and config files.
Format
Convert
1
New
Epoch Converter
Convert Unix timestamps and ISO dates in any timezone.
Convert
Generate
2
New
UUID Generator
Generate UUID v4 and v7 identifiers in bulk, offline.
Generate
New
QR Code Generator
Create QR codes for text and URLs, download as PNG or SVG.
Generate
Calculate
2
New
Calculator
A safe, keyboard-friendly expression calculator.
Calculate
New
Days Between Dates
Count days, weeks and business days between two dates.
Calculate
Image
1
New
Image Resizer
Resize and convert images locally — nothing is uploaded.