ediHex

ediHex 0.2b

GitHub

ediHex hex editor

Native macOS hex editor for inspecting, editing, and analyzing binary files.

Features

Hex editor:

Large files without RAM load.
Edit, undo/redo, adjustable view (width, encodings).
Copy, fill, clear, export selection.
Highlights, inspector, status bar, settings.

Workspace:

Tabs, split panes, drag-and-drop.
Side-by-side compare with highlights, sync scroll, diff navigation.

Analysis:

Search HEX/text with progress, save results.
Hashes (MD5, SHA, CRC), histogram with export.
Inspector with offset, length, binary view, integer decoding, search/diff results.

Built-in terminal

Scriptable command line in the panel below the editor (active document pane). Disabled in comparison panes. Type help for the full reference.

Command	Description
`goto`	Jump to a byte offset
`hex`, `bin`, `ascii`	Dump bytes in different formats
`sum`, `xor`, `avg`, `min`, `max`	Byte math over ranges
`len`, `count`	Length and byte frequency
`read`	Read typed values at an offset (`--le` / `--be`)
`find`	Search hex or ASCII patterns
`cmp`	Compare two byte ranges
`crc`, `hash`	Checksums and digests
`help ranges`, `help filters`, `help crc`	Detailed syntax docs

Ranges support decimal and hex offsets, multiple segments, and sampling filters (--every, --skip, etc.).

Requirements

macOS 15.6 or later
Xcode 26 or later (Swift 5)

CI runs on macos-15 with Xcode 26.

Build & run

git clone https://github.com/tunerok/edihex.git
cd edihex
open ediHex.xcodeproj

In Xcode: select the ediHex scheme → Run (⌘R).

Don’t want to develop an app? Please check out the Releases section.

Run tests

xcodebuild test \
  -project ediHex.xcodeproj \
  -scheme ediHex \
  -destination 'platform=macOS'

Test coverage includes byte-array I/O, virtual scroll window, row loading and caches, pattern search, hashing, CRC, comparison diff mapping, highlight spans, histogram building, and the terminal command parser/tokenizer.

Keyboard shortcuts

Action	Shortcut
New file	⌘N
Open file	⌘O
Save / Save As	⌘S / ⇧⌘S
Undo / Redo	⌘Z / ⇧⌘Z
Copy selection as hex	⇧⌘C
Find	⌘F
Next / previous difference (compare)	F3 / ⇧F3
Split right / down	⌘\ / ⇧⌘\
Next / previous tab	⇧⌘] / ⇧⌘[
Close tab / group	⌘W / ⇧⌘W
Help	⌘?

Project structure

ediHex/
├── ediHexApp.swift          # App entry point, menus, settings
├── ContentView.swift        # Root layout
├── Core/ByteArray/          # B+ tree, file/memory slices, chunked I/O, writer
├── Models/                  # Document, selection, CRC, find, highlight models
├── ViewModels/              # Workspace and pane state
├── Views/                   # SwiftUI views (grid, compare, tools, terminal)
└── Services/                # I/O, search, hash, CRC, scroll, compare, terminal

ediHexTests/                 # Unit tests (18 files, 22 suites, 224 tests)