Plaintools / DevTools / Utilities
All processing local · Nothing transmitted · Works offline · 5 tools
Utilities
Local · Precise
{} Format & Parse 64 Encode & Decode 🔒 Security ⟲ Code Tools ◈ Utilities
COLOR CONVERTER
Convert between HEX, RGB, and HSL. Use the color picker or type values directly. All conversions update live.
● Local
Use picker or type below
Hex
RGB
HSL
QR Code Generator
QR CODE GENERATOR
Generate QR codes for text, URLs, or any data. Customize colors and size. Download as PNG. All local — nothing uploaded.
● Local — no upload
Text or URL
QR Code
Chmod Calculator
CHMOD CALCULATOR
Calculate Unix file permissions. Toggle checkboxes, enter octal directly, or use a preset. Click the command to copy it.
● Local
Common presets:
Owner
Group
Others
Octal755
Symbolic-rwxr-xr-x
Commandchmod 755 filename
Timestamp Converter
TIMESTAMP CONVERTER
Convert Unix timestamps, ISO 8601, and human-readable dates. Click any value to copy it.
● Local
Input — Unix timestamp, ISO 8601, or any date string
All Formats — click any row to copy
HTTP Request Builder
HTTP REQUEST BUILDER
Build and send HTTP requests from your browser. View formatted responses. CORS restrictions apply — same as all browser-based HTTP tools.
● Browser direct
Requests are sent directly from your browser. No proxy server. No logging. CORS errors mean the server restricts browser requests — that is a server-side restriction, not a bug in this tool.
Headers (Key: Value, one per line)
Body (for POST, PUT, PATCH)
Response