Bit Alchemist Hex Calculator
Programmer Hex Calculator
Only for Mac
$12.99
Mac
A true native Mac app for developers. One purchase unlocks everything: four bases live, 8–64-bit signed/unsigned math, CPU flags, and full keyboard control.
Bit Alchemist is a serious programmer's calculator for the Mac — integer-only, fully specified, and fast. Built for assembly, embedded, systems, security, and reverse-engineering work, and for students learning binary and hex.
It's a true native Mac app, not a stretched phone port: a full menu bar, complete hardware-keyboard control, and a freely resizable window whose layout adapts automatically — flowing from the full workbench to compact and landscape arrangements, scaling smoothly so every control stays usable at any size.
One purchase includes every feature below. No subscription, no unlocks, no ads.
FOUR BASES, ALWAYS IN VIEW
Switch instantly between hexadecimal, decimal, octal, and binary — or open the Converter view and watch all four update live as you work. The display is fully configurable: digit grouping, 0x/0b/0o prefixes, uppercase hex, and leading zeros padded to the full word width.
REAL WORD SIZES. REAL SIGNEDNESS.
Work in 8, 16, 32, or 64-bit. Signed vs. unsigned is a true interpretation mode, not a display toggle — it drives division, shifts, and the meaning of every flag. Change word size and values re-interpret correctly, with a clear overflow indicator when high bits are lost.
TYPE IT OR CLICK IT — SAME ANSWER
Enter full C-style expressions with correct operator precedence and parentheses — like (0xFF00 AND 0x0F0F) SHR 4 or (1 SHL 16) - 1 — mixing hex, decimal, binary, and octal literals freely. Use symbols or the named operators (AND, XOR, SHL, ROL, and more). One engine powers both typing and clicking, so bitwise precedence never gives you two different answers. Pasted values with prefixes, spaces, underscores, or commas are cleaned up automatically.
A COMPLETE BITWISE TOOLBOX
- Logic — AND, OR, XOR, NOT, plus NAND, NOR, XNOR
- Shifts & rotates — SHL, SHR, SAR, ROL, ROR, and rotate-through-carry (RCL, RCR)
- Bit manipulation — a tap-a-bit editor to set, clear, toggle, or test any bit, plus population count, CLZ/CTZ, bit reverse, and byte/word swap
- Bitfields & masks — sign/zero-extend, mask-to-width, extract or build a mask for any bit range, and "explain this mask" for hardware registers and packed fields
- Arithmetic with fully defined behavior — truncating division, remainder takes the sign of the dividend, graceful divide-by-zero, and wrapping signed overflow
CPU FLAGS, COMPUTED EXACTLY
C, Z, N, V, and P after every operation, with exact, documented semantics — sticky carry, low-byte parity, correct carry-vs-borrow, and signed-overflow detection. Show or hide each flag individually.
MEMORY, REGISTERS & HISTORY
A classic memory row (M+, M−, recall, clear) plus a full 8-register bank (R0–R7) with labels that persists between launches. Every committed result is logged with its expression, base, word size, signedness, and flags — reuse it, copy it, or clear the lot.
BUILT FOR THE DEVELOPER WORKFLOW
Copy any base, the ASCII view, or a mask explanation in one click. Copy as code exports the current value as a C, Swift, Python, or JavaScript literal — typed scalar or byte array — ready to paste. Type whole expressions from the keyboard: Return to evaluate, Esc to clear, ⌘C to copy, ⌘1–4 to switch base, ⌘5–8 to switch word size.
PRIVATE BY DESIGN
Bit Alchemist works completely offline. No account, no analytics, no ads, no tracking, and no third-party SDKs. The calculation core is exhaustively tested against an independent reference across every word size and both signedness modes. VoiceOver and Reduce Motion supported, with a dark-first, high-contrast monospaced interface throughout.
Master the bases and turn raw bits into gold.
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The developer, Medasis Corporation, 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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Medasis Corporation
- Size
- 3.5 MB
- Category
- Developer Tools
- Compatibility
Requires macOS 15.0 or later.
- Mac
Requires macOS 15.0 or later.
- Mac
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © Copyright 2026
