Smart Convert - Base Converter
Bases 2 to 62, instantly.
Free · In‑App Purchases
Quick and Custom are now one screen. Convert any base from 2 to 62 with no digit limit, tap to copy, pin the bases you use, and restore past values from History.
Smart Convert converts numbers between any bases from 2 to 62 — all on one screen. Type a value and the results for your pinned bases appear instantly.
Whether you're debugging hex, learning binary, or curious about base 36 and base 62, just tap a result to copy it.
KEY FEATURES
• One screen for everything: pick the input base, type a value, and see every result as a card
• Bases 2 to 62: binary, octal, decimal and hex by default — pin any other base to add it to your results
• No digit limit: arbitrary-precision math converts huge numbers (well beyond 64 bits) exactly, with no rounding
• Tap to copy: tap a result card to copy it. Touch and hold to copy with separators or a prefix (0x, 0b, 0o), or to use the value as your new input
• Forgiving input: paste values with prefixes like 0x, spaces or underscores as separators, or full-width digits
• Fractions and negative numbers: choose 8, 16 or 32 digits for fractions that don't terminate
• History: values are saved automatically — tap one to bring it back to the converter
• Light & Dark themes: follow the system or choose your own
• Localized in 9 languages, on iPhone and iPad
DESIGNED FOR
• Software engineers working with hex, binary, or unusual encodings
• Computer science students learning number systems
• Math enthusiasts curious about base 36, base 62, and beyond
• Anyone who needs a quick, reliable converter
HOW TO USE
1. Choose the input base above the input field
2. Type a value — results for your pinned bases appear instantly
3. Tap a result to copy it, or touch and hold for more options
4. Use "Add base" to pin any base from 2 to 62
Free to use, with an optional in-app purchase to remove ads. No account needed.
Ads are provided by Google AdMob. On first launch, the app asks for permission to track for personalized ads — every feature works whether or not you allow it.
Ratings & Reviews
Updated the support page and contact information.
The developer, Koya Nambo, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
- Usage Data
- Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Koya Nambo
- Size
- 4.5 MB
- Category
- Education
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 8 more
- English, Indonesian, Japanese, Korean, Simplified Chinese, Spanish, Thai, Traditional Chinese, Vietnamese
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- No Ads $2.99
- Copyright
- © 2023 Koya Nambo