DevScratchpad

Base64 / Hex / Binary Multi-Inspector & Image Previewer (Offline & Secure)

Free, 100% private Base64, Hex, Binary, and Data URL inspector. Convert encodings, view canonical hex dumps, and preview data URL images directly in your browser.

How to use

  1. Paste any string, Base64 payload, Hex stream, Binary bits, or Data URL image into the editor.
  2. The tool auto-detects the encoding format and renders simultaneous multi-format conversions.
  3. Switch to 'Canonical Hex Dump' to inspect byte offsets, hex pairs, and ASCII representation.
  4. If an image Data URL is detected, view the live high-contrast preview canvas and download the file.

Technical Considerations

  • URL-safe unpadded Base64 strings (- and _).
  • Embedded PNG/JPEG/WEBP magic bytes in raw Base64.

100% Client-Side Privacy: This tool executes entirely within your browser's runtime environment. No payloads, tokens, or inputs are transmitted to external servers. Safe for offline usage.

Keyboard Shortcuts

  • Ctrl/Cmd + K — Open Command PaletteCtrl/Cmd + K — Open Command Palette