eSIM QR Code Scanner&Helper vs Signed Base Converter

eSIM QR Code Scanner & Helper is a powerful offline eSIM QR Code Scanner and eSIM management tool tailored for digital nomads, travelers, and tech enthusiasts. Whether you want to extract core installation data or securely archive your purchased eSIMs for future reference, it provides you with the most professional, secure, and lightning-fast experience. Whether scanning via camera, scan eSIM QR Code from photos gallery, or pasting manually, the app instantly parses the real data behind the QR code. Clearly view hidden SM-DP+ core addresses, activation codes, putting you in full control of your data. Bought too many data plans and getting confused? Save your parsed eSIM parameters to your local "Archive" with a single tap, and add custom notes to each profile (e.g., "Japan 7-Day Trip", "Europe Backup"). All scan records are also automatically temporarily saved in "History" to ensure your digital assets are never lost. Export your eSIM details (including clear QR codes and core text parameters) as beautifully formatted PDFs or images with a single tap. This makes cross-device backup a breeze and allows you to elegantly share eSIMs with family and friends traveling with you. Beyond camera and gallery scanning, we offer a powerful "Manual Input" mode. You can freely input or edit SM-DP+ addresses and LPA strings, or even generate entirely new configuration profiles from scratch. Once parsed, the app intelligently helps you trigger the system's native eSIM activation process (depending on device support), or allows you to copy parameters with one tap for manual addition in system settings. We deeply understand the high sensitivity of your communication identity data. eSIM QR Helper is a 100% Local-Only App. We do not have any backend servers, and we will never collect, upload, or analyze your QR codes, gallery photos, or eSIM data. All parsing and saving processes are completed entirely offline on your device. Your data belongs absolutely and only to you.

Signed Base Converter is a clean and focused tool for everyday number base conversion. Switch between decimal-to-hexadecimal and hexadecimal-to-decimal conversion, and the input automatically changes to match the selected direction. The app also shows the corresponding binary representation so you can inspect the actual bit pattern at a glance. Signed Base Converter supports both signed and unsigned interpretation, with selectable 8, 16, 32, and 64-bit widths. When you change the bit width or number mode, the app displays the current minimum and maximum values, making it easier to understand valid ranges, two's-complement values, and overflow limits. Key features: Decimal to hexadecimal conversion Hexadecimal to decimal conversion Binary output shown at the same time Signed and unsigned number modes 8, 16, 32, and 64-bit width options Minimum and maximum value display for the current mode Automatic input conversion when switching direction Chinese and English interface support Signed Base Converter is useful for computer science learning, software development, embedded debugging, data inspection, and daily numeric format conversion.