Zume Editor is a cross-platform native text/code/hex editor built in C++ for Windows, macOS, and Linux. It opens multi-gigabyte files (10GB+) in milliseconds without loading them into RAM, and keeps editing, search, and undo fully responsive at that scale.

Highlights:

- Large-file engine: open, edit, and search 10GB+ files with streamed durable saves

- Code editing: syntax highlighting for 40+ languages, code folding, multi-caret, column mode, word wrap

- Powerful search: regex find/replace, Find in Files with preview and transactional Replace in Files

- Hex editor with EBCDIC view, byte search, and shared undo with the text view

- Built-in Git client (log, branches, stage/commit, merge/rebase, conflict resolution)

- Remote editing over SFTP/FTP/FTPS and an integrated SSH terminal

- Compare/merge for files, folders, and bytes; live Markdown/HTML preview

- Automation: keyboard macros and Lua scripting, plus a headless CLI

- Binary analysis tools: PE/ELF/Mach-O inspection, disassembly, strings, entropy

- 38 text encodings, crash recovery, themes, and a UI in English, Japanese, and Simplified Chinese