Base64 Encode & Decode

HTML, Hex & URL Dev Toolkit

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

Encode and decode Base64 and URL strings both ways. Encode and decode Base64 in real time, decode any JWT, and turn images into data-URIs — a complete developer codec toolkit that works entirely offline. WHAT YOU CAN DO • Base64 encode and decode text or data both ways, with a live byte count • A full codec set — Base64URL, URL-encoding, HTML entities, Hex and Base32 • JWT decoder that pretty-prints the header and payload, with claims and expiry made readable • Image to Base64 data-URI, and paste a data-URI back to preview the image • Saved history of every conversion, always private and offline • A built-in reference that explains Base64, data-URIs and JWTs HOW IT WORKS 1. Paste your text, token, or image 2. Pick the codec — conversion happens instantly 3. Copy the result with a single tap Everything runs on your device. No accounts, no servers, no tracking — your payloads never leave your iPhone. Full access unlocks every codec, the JWT decoder, the image converter and saved history. Choose a weekly or yearly plan, or a one-time lifetime unlock. Get the developer codec toolkit that respects your privacy. — LEGAL — Terms of Use: https://web-levi.web.app/terms Privacy Policy: https://web-levi.web.app/privacy-policy Support: tphuc.work@gmail.com

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Initial release.

Version 1.0.0

The developer, Phuc Pham, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • Phuc Pham
    Size
    • 2.3 MB
    Category
    • Developer Tools
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    • © 2026 Phuc Pham
  • Developer Website
  • Privacy Policy

    • More by Phuc Pham

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